Malware Analysis Report

2024-10-10 13:00

Sample ID 240617-lvgqmszamn
Target 439cb5cb55ef43db9a6bf3e7f5a7c41f.exe
SHA256 4d904132b607fffcc8b3c537e7122cb0bec8303a7600d1bc454cfc6162dedd87
Tags
dcrat infostealer rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

4d904132b607fffcc8b3c537e7122cb0bec8303a7600d1bc454cfc6162dedd87

Threat Level: Known bad

The file 439cb5cb55ef43db9a6bf3e7f5a7c41f.exe was found to be: Known bad.

Malicious Activity Summary

dcrat infostealer rat

DcRat

Process spawned unexpected child process

Dcrat family

DCRat payload

DCRat payload

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Drops file in Windows directory

Drops file in Program Files directory

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: GetForegroundWindowSpam

Modifies registry class

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Uses Task Scheduler COM API

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-17 09:51

Signatures

DCRat payload

rat
Description Indicator Process Target
N/A N/A N/A N/A

Dcrat family

dcrat

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-17 09:51

Reported

2024-06-17 09:53

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe"

Signatures

DcRat

rat infostealer dcrat

Process spawned unexpected child process

Description Indicator Process Target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe

DCRat payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\bridgeserver\Bridgems.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\Windows\SysWOW64\WScript.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\bridgeserver\Bridgems.exe N/A
N/A N/A C:\Recovery\WindowsRE\conhost.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\Windows Mail\dllhost.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\Java\jre8\lib\ea9f0e6c9e2dcd C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\Windows Sidebar\Gadgets\dllhost.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\Uninstall Information\66fc9ff0ee96c2 C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_neutral_split.scale-150_8wekyb3d8bbwe\OfficeClickToRun.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Reference Assemblies\Microsoft\Bridgems.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Reference Assemblies\Microsoft\4ff44765b53a00 C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\Microsoft Office\Office16\ea1d8f6d871115 C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\Windows Sidebar\Gadgets\5940a34987c991 C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\Uninstall Information\sihost.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\VideoLAN\VLC\plugins\video_filter\121e5b5079f7c0 C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Windows Mail\5940a34987c991 C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Windows Media Player\ja-JP\RuntimeBroker.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Windows Media Player\ja-JP\9e8d7a4ca61bd9 C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\Microsoft Office\Office16\upfc.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\Java\jre8\lib\taskhostw.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\VideoLAN\VLC\plugins\video_filter\sysmon.exe C:\bridgeserver\Bridgems.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Tasks\5b884080fd4f94 C:\bridgeserver\Bridgems.exe N/A
File created C:\Windows\Tasks\fontdrvhost.exe C:\bridgeserver\Bridgems.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000_Classes\Local Settings C:\bridgeserver\Bridgems.exe N/A
Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000_Classes\Local Settings C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\bridgeserver\Bridgems.exe N/A
Token: SeDebugPrivilege N/A C:\Recovery\WindowsRE\conhost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1076 wrote to memory of 4144 N/A C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe C:\Windows\SysWOW64\WScript.exe
PID 1076 wrote to memory of 4144 N/A C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe C:\Windows\SysWOW64\WScript.exe
PID 1076 wrote to memory of 4144 N/A C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe C:\Windows\SysWOW64\WScript.exe
PID 4144 wrote to memory of 4092 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 4144 wrote to memory of 4092 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 4144 wrote to memory of 4092 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 4092 wrote to memory of 2200 N/A C:\Windows\SysWOW64\cmd.exe C:\bridgeserver\Bridgems.exe
PID 4092 wrote to memory of 2200 N/A C:\Windows\SysWOW64\cmd.exe C:\bridgeserver\Bridgems.exe
PID 2200 wrote to memory of 4408 N/A C:\bridgeserver\Bridgems.exe C:\Windows\System32\cmd.exe
PID 2200 wrote to memory of 4408 N/A C:\bridgeserver\Bridgems.exe C:\Windows\System32\cmd.exe
PID 4408 wrote to memory of 4220 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\w32tm.exe
PID 4408 wrote to memory of 4220 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\w32tm.exe
PID 4408 wrote to memory of 1520 N/A C:\Windows\System32\cmd.exe C:\Recovery\WindowsRE\conhost.exe
PID 4408 wrote to memory of 1520 N/A C:\Windows\System32\cmd.exe C:\Recovery\WindowsRE\conhost.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe

"C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe"

C:\Windows\SysWOW64\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\bridgeserver\gkabdrVFcIIw.vbe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\bridgeserver\gFpFORhYJ1DQnQT8.bat" "

C:\bridgeserver\Bridgems.exe

"C:\bridgeserver\Bridgems.exe"

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 14 /tr "'C:\bridgeserver\conhost.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\bridgeserver\conhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 10 /tr "'C:\bridgeserver\conhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 5 /tr "'C:\bridgeserver\fontdrvhost.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\bridgeserver\fontdrvhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 7 /tr "'C:\bridgeserver\fontdrvhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 7 /tr "'C:\Recovery\WindowsRE\dwm.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\dwm.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\dwm.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 11 /tr "'C:\Windows\Tasks\fontdrvhost.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\Tasks\fontdrvhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 11 /tr "'C:\Windows\Tasks\fontdrvhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "BridgemsB" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\Bridgems.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "Bridgems" /sc ONLOGON /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\Bridgems.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "BridgemsB" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\Bridgems.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Windows Mail\dllhost.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Mail\dllhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Mail\dllhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\conhost.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\conhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\conhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 11 /tr "'C:\Program Files\Java\jre8\lib\taskhostw.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Program Files\Java\jre8\lib\taskhostw.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 11 /tr "'C:\Program Files\Java\jre8\lib\taskhostw.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 14 /tr "'C:\Users\Public\Music\SearchApp.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Users\Public\Music\SearchApp.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 9 /tr "'C:\Users\Public\Music\SearchApp.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Media Player\ja-JP\RuntimeBroker.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Media Player\ja-JP\RuntimeBroker.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Windows Media Player\ja-JP\RuntimeBroker.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 6 /tr "'C:\Program Files\Microsoft Office\Office16\upfc.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "upfc" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office\Office16\upfc.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 5 /tr "'C:\Program Files\Microsoft Office\Office16\upfc.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Sidebar\Gadgets\dllhost.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\Gadgets\dllhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Sidebar\Gadgets\dllhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 8 /tr "'C:\Program Files\Uninstall Information\sihost.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Program Files\Uninstall Information\sihost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 13 /tr "'C:\Program Files\Uninstall Information\sihost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 12 /tr "'C:\Users\Public\Music\dllhost.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Users\Public\Music\dllhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Users\Public\Music\dllhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 13 /tr "'C:\Program Files\VideoLAN\VLC\plugins\video_filter\sysmon.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\Program Files\VideoLAN\VLC\plugins\video_filter\sysmon.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 8 /tr "'C:\Program Files\VideoLAN\VLC\plugins\video_filter\sysmon.exe'" /rl HIGHEST /f

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\uPaEwaJE4L.bat"

C:\Windows\system32\w32tm.exe

w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2

C:\Recovery\WindowsRE\conhost.exe

"C:\Recovery\WindowsRE\conhost.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 cz61028.tw1.ru udp
US 8.8.8.8:53 cz61028.tw1.ru udp

Files

C:\bridgeserver\gkabdrVFcIIw.vbe

MD5 7cd5f78a91ead735c67b9bad63fa634d
SHA1 a0eb9811e6f9d68393df65db38b8e3d14fff6573
SHA256 d6ec6d3f6c9b24c8f825229e7aca6d68c15db66e1b4a7b2bd81a9c9919412e32
SHA512 8a0b3ee98c40d279ddb1aea940fa6658b334a8e14428d2fa81a0c1a32b70e093c9b2fe69cb38eb8a377b6cef9f143dfbe4ef73b4d0479ea54f9e452bd644b5be

C:\bridgeserver\gFpFORhYJ1DQnQT8.bat

MD5 678dc3f4dbb4f114acdb2ae4f0fc4c62
SHA1 17a8c4ec2eac6f48d2da9ecefb0123d373f4b2b8
SHA256 182de803c8e797370b71a0342dc47c3684627f30065dc0805da9aced5f5b9737
SHA512 1c20c357da67b7cc8fae49ce863b29efbf99161892d1c8b22d22856cc3ec9c70d171215da623e2dc5dba3846274f70bf6f6af3dc8a4584ac07364bd13b286307

C:\bridgeserver\Bridgems.exe

MD5 4b4fbd1058bad316a931918769027276
SHA1 598bbff84cfde0d002feeefd19dae6a20fcfcbf8
SHA256 f139ad1c83bf27b6ca402476829a81f311f19b98b655bbaca32ef3c8c5aa7550
SHA512 108c4390dc8944f43579ff8c052207a441f036de68e99a6c41cb28f9d71a6a751e10f918b873dc177ba0a241b402980aed5c3a21003bce250d62fc3afc1e2344

memory/2200-12-0x00007FFE2F963000-0x00007FFE2F965000-memory.dmp

memory/2200-13-0x00000000006D0000-0x00000000007CC000-memory.dmp

memory/2200-14-0x0000000001090000-0x00000000010A2000-memory.dmp

memory/2200-16-0x00000000010A0000-0x00000000010AC000-memory.dmp

memory/2200-15-0x000000001BF10000-0x000000001C438000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\uPaEwaJE4L.bat

MD5 0c62fa3984110f71a8789cc3c2f7e45e
SHA1 e73eb0ff34246656f6e345c415bcf1aeee368a10
SHA256 d6a5a337ac81adf27eb1aa63953153d13f5a200fbfd7d236d38b68d97b9c61ee
SHA512 0059428f7aec8905e249ee8ac32ac99f70b8bf2b7b4a878029a681e47fec987a92dd15836d6600b02158e26e3a670f0d2c3e7293c11e5a4461ba5f17c54b2dfa

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-17 09:51

Reported

2024-06-17 09:53

Platform

win7-20240221-en

Max time kernel

142s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe"

Signatures

DcRat

rat infostealer dcrat

Process spawned unexpected child process

Description Indicator Process Target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process N/A C:\Windows\system32\schtasks.exe

DCRat payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\bridgeserver\Bridgems.exe N/A
N/A N/A C:\bridgeserver\Bridgems.exe N/A
N/A N/A C:\bridgeserver\schtasks.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\Packages\cmd.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\Packages\ebf1f9fa8afd6d C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Mozilla Maintenance Service\logs\csrss.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\MSBuild\explorer.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\schtasks.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Common Files\DESIGNER\conhost.exe C:\bridgeserver\Bridgems.exe N/A
File opened for modification C:\Program Files (x86)\Common Files\DESIGNER\conhost.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\Microsoft Games\FreeCell\ja-JP\lsm.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\Microsoft Games\FreeCell\ja-JP\101b941d020240 C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Mozilla Maintenance Service\logs\886983d96e3d3e C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\csrss.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\886983d96e3d3e C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\ja\c5b4cb5e9653cc C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\VideoLAN\VLC\skins\fonts\886983d96e3d3e C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Common Files\DESIGNER\088424020bedd6 C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\MSBuild\7a0fd90576e088 C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\3a6fe29a7ceee6 C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files\VideoLAN\VLC\skins\fonts\csrss.exe C:\bridgeserver\Bridgems.exe N/A
File created C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\ja\services.exe C:\bridgeserver\Bridgems.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\bridgeserver\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\bridgeserver\Bridgems.exe N/A
Token: SeDebugPrivilege N/A C:\bridgeserver\Bridgems.exe N/A
Token: SeDebugPrivilege N/A C:\bridgeserver\schtasks.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2128 wrote to memory of 1192 N/A C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe C:\Windows\SysWOW64\WScript.exe
PID 2128 wrote to memory of 1192 N/A C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe C:\Windows\SysWOW64\WScript.exe
PID 2128 wrote to memory of 1192 N/A C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe C:\Windows\SysWOW64\WScript.exe
PID 2128 wrote to memory of 1192 N/A C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe C:\Windows\SysWOW64\WScript.exe
PID 1192 wrote to memory of 2840 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 1192 wrote to memory of 2840 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 1192 wrote to memory of 2840 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 1192 wrote to memory of 2840 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 2840 wrote to memory of 2760 N/A C:\Windows\SysWOW64\cmd.exe C:\bridgeserver\Bridgems.exe
PID 2840 wrote to memory of 2760 N/A C:\Windows\SysWOW64\cmd.exe C:\bridgeserver\Bridgems.exe
PID 2840 wrote to memory of 2760 N/A C:\Windows\SysWOW64\cmd.exe C:\bridgeserver\Bridgems.exe
PID 2840 wrote to memory of 2760 N/A C:\Windows\SysWOW64\cmd.exe C:\bridgeserver\Bridgems.exe
PID 2760 wrote to memory of 2368 N/A C:\bridgeserver\Bridgems.exe C:\bridgeserver\Bridgems.exe
PID 2760 wrote to memory of 2368 N/A C:\bridgeserver\Bridgems.exe C:\bridgeserver\Bridgems.exe
PID 2760 wrote to memory of 2368 N/A C:\bridgeserver\Bridgems.exe C:\bridgeserver\Bridgems.exe
PID 2368 wrote to memory of 1032 N/A C:\bridgeserver\Bridgems.exe C:\bridgeserver\schtasks.exe
PID 2368 wrote to memory of 1032 N/A C:\bridgeserver\Bridgems.exe C:\bridgeserver\schtasks.exe
PID 2368 wrote to memory of 1032 N/A C:\bridgeserver\Bridgems.exe C:\bridgeserver\schtasks.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe

"C:\Users\Admin\AppData\Local\Temp\439cb5cb55ef43db9a6bf3e7f5a7c41f.exe"

C:\Windows\SysWOW64\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\bridgeserver\gkabdrVFcIIw.vbe"

C:\Windows\SysWOW64\cmd.exe

cmd /c ""C:\bridgeserver\gFpFORhYJ1DQnQT8.bat" "

C:\bridgeserver\Bridgems.exe

"C:\bridgeserver\Bridgems.exe"

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Common Files\DESIGNER\conhost.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\DESIGNER\conhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Common Files\DESIGNER\conhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "servicess" /sc MINUTE /mo 8 /tr "'C:\Recovery\5b7985c2-d100-11ee-bb00-c695cbc44580\services.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Recovery\5b7985c2-d100-11ee-bb00-c695cbc44580\services.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "servicess" /sc MINUTE /mo 13 /tr "'C:\Recovery\5b7985c2-d100-11ee-bb00-c695cbc44580\services.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "explorere" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\PrintHood\explorer.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Users\Admin\PrintHood\explorer.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "explorere" /sc MINUTE /mo 7 /tr "'C:\Users\Admin\PrintHood\explorer.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\Packages\cmd.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\Packages\cmd.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\Packages\cmd.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 13 /tr "'C:\Users\All Users\Microsoft\MF\conhost.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Users\All Users\Microsoft\MF\conhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 11 /tr "'C:\Users\All Users\Microsoft\MF\conhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "smsss" /sc MINUTE /mo 7 /tr "'C:\bridgeserver\smss.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\bridgeserver\smss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "smsss" /sc MINUTE /mo 11 /tr "'C:\bridgeserver\smss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "lsml" /sc MINUTE /mo 8 /tr "'C:\Program Files\Microsoft Games\FreeCell\ja-JP\lsm.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Program Files\Microsoft Games\FreeCell\ja-JP\lsm.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "lsml" /sc MINUTE /mo 10 /tr "'C:\Program Files\Microsoft Games\FreeCell\ja-JP\lsm.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\csrss.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\csrss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\csrss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\bridgeserver\csrss.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\bridgeserver\csrss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\bridgeserver\csrss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "explorere" /sc MINUTE /mo 7 /tr "'C:\Program Files\MSBuild\explorer.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files\MSBuild\explorer.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "explorere" /sc MINUTE /mo 10 /tr "'C:\Program Files\MSBuild\explorer.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "servicess" /sc MINUTE /mo 14 /tr "'C:\bridgeserver\services.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\bridgeserver\services.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "servicess" /sc MINUTE /mo 11 /tr "'C:\bridgeserver\services.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "BridgemsB" /sc MINUTE /mo 7 /tr "'C:\MSOCache\All Users\{90140000-001B-0409-0000-0000000FF1CE}-C\Bridgems.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "Bridgems" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-001B-0409-0000-0000000FF1CE}-C\Bridgems.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "BridgemsB" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\{90140000-001B-0409-0000-0000000FF1CE}-C\Bridgems.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "lsml" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\lsm.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\lsm.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "lsml" /sc MINUTE /mo 14 /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\lsm.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\csrss.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\csrss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\csrss.exe'" /rl HIGHEST /f

C:\bridgeserver\Bridgems.exe

"C:\bridgeserver\Bridgems.exe"

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Recovery\5b7985c2-d100-11ee-bb00-c695cbc44580\sppsvc.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Recovery\5b7985c2-d100-11ee-bb00-c695cbc44580\sppsvc.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 9 /tr "'C:\Recovery\5b7985c2-d100-11ee-bb00-c695cbc44580\sppsvc.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "schtaskss" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\schtasks.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "schtasks" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\schtasks.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "schtaskss" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\schtasks.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "servicess" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\ja\services.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\ja\services.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "servicess" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\ja\services.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\Recovery\5b7985c2-d100-11ee-bb00-c695cbc44580\csrss.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Recovery\5b7985c2-d100-11ee-bb00-c695cbc44580\csrss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Recovery\5b7985c2-d100-11ee-bb00-c695cbc44580\csrss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "schtaskss" /sc MINUTE /mo 13 /tr "'C:\bridgeserver\schtasks.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "schtasks" /sc ONLOGON /tr "'C:\bridgeserver\schtasks.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "schtaskss" /sc MINUTE /mo 6 /tr "'C:\bridgeserver\schtasks.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Program Files\VideoLAN\VLC\skins\fonts\csrss.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\VideoLAN\VLC\skins\fonts\csrss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Program Files\VideoLAN\VLC\skins\fonts\csrss.exe'" /rl HIGHEST /f

C:\bridgeserver\schtasks.exe

"C:\bridgeserver\schtasks.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 cz61028.tw1.ru udp
RU 92.53.96.121:80 cz61028.tw1.ru tcp
RU 92.53.96.121:80 cz61028.tw1.ru tcp
RU 92.53.96.121:80 cz61028.tw1.ru tcp
RU 92.53.96.121:80 cz61028.tw1.ru tcp
RU 92.53.96.121:80 cz61028.tw1.ru tcp

Files

C:\bridgeserver\gkabdrVFcIIw.vbe

MD5 7cd5f78a91ead735c67b9bad63fa634d
SHA1 a0eb9811e6f9d68393df65db38b8e3d14fff6573
SHA256 d6ec6d3f6c9b24c8f825229e7aca6d68c15db66e1b4a7b2bd81a9c9919412e32
SHA512 8a0b3ee98c40d279ddb1aea940fa6658b334a8e14428d2fa81a0c1a32b70e093c9b2fe69cb38eb8a377b6cef9f143dfbe4ef73b4d0479ea54f9e452bd644b5be

C:\bridgeserver\gFpFORhYJ1DQnQT8.bat

MD5 678dc3f4dbb4f114acdb2ae4f0fc4c62
SHA1 17a8c4ec2eac6f48d2da9ecefb0123d373f4b2b8
SHA256 182de803c8e797370b71a0342dc47c3684627f30065dc0805da9aced5f5b9737
SHA512 1c20c357da67b7cc8fae49ce863b29efbf99161892d1c8b22d22856cc3ec9c70d171215da623e2dc5dba3846274f70bf6f6af3dc8a4584ac07364bd13b286307

\bridgeserver\Bridgems.exe

MD5 4b4fbd1058bad316a931918769027276
SHA1 598bbff84cfde0d002feeefd19dae6a20fcfcbf8
SHA256 f139ad1c83bf27b6ca402476829a81f311f19b98b655bbaca32ef3c8c5aa7550
SHA512 108c4390dc8944f43579ff8c052207a441f036de68e99a6c41cb28f9d71a6a751e10f918b873dc177ba0a241b402980aed5c3a21003bce250d62fc3afc1e2344

memory/2760-13-0x00000000003D0000-0x00000000004CC000-memory.dmp

memory/2760-14-0x00000000003B0000-0x00000000003C2000-memory.dmp

memory/2760-15-0x00000000003C0000-0x00000000003CC000-memory.dmp

memory/1032-65-0x00000000012A0000-0x000000000139C000-memory.dmp