Malware Analysis Report

2024-10-10 12:55

Sample ID 240531-s4f9ssde45
Target nursultan nexgen fix.exe
SHA256 16015088c3352a8257f420555e7ce6245aa0e6682deeca79bf7e08c24e1ac3de
Tags
rat dcrat evasion infostealer spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

16015088c3352a8257f420555e7ce6245aa0e6682deeca79bf7e08c24e1ac3de

Threat Level: Known bad

The file nursultan nexgen fix.exe was found to be: Known bad.

Malicious Activity Summary

rat dcrat evasion infostealer spyware stealer

Dcrat family

DcRat

DCRat payload

Process spawned unexpected child process

DCRat payload

Disables Task Manager via registry modification

Executes dropped EXE

Checks computer location settings

Reads user/profile data of web browsers

Loads dropped DLL

Drops file in Windows directory

Drops file in Program Files directory

Unsigned PE

Enumerates physical storage devices

Creates scheduled task(s)

Uses Task Scheduler COM API

Suspicious use of AdjustPrivilegeToken

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Modifies registry key

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-31 15:40

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: behavioral1

Detonation Overview

Submitted

2024-05-31 15:40

Reported

2024-05-31 15:43

Platform

win7-20240221-en

Max time kernel

126s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.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

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

Disables Task Manager via registry modification

evasion

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\portagentbrowserweb\Containerruntime.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.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

Reads user/profile data of web browsers

spyware stealer

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\it\dwm.exe C:\portagentbrowserweb\Containerruntime.exe N/A
File created C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\it\6cb0b6c459d5d3 C:\portagentbrowserweb\Containerruntime.exe N/A
File created C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\Idle.exe C:\portagentbrowserweb\Containerruntime.exe N/A
File created C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\6ccacd8608530f C:\portagentbrowserweb\Containerruntime.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\ja-JP\winlogon.exe C:\portagentbrowserweb\Containerruntime.exe N/A
File created C:\Windows\ja-JP\cc11b995f2a76d C:\portagentbrowserweb\Containerruntime.exe N/A

Enumerates physical storage devices

Modifies registry key

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\portagentbrowserweb\Containerruntime.exe N/A
N/A N/A C:\portagentbrowserweb\Containerruntime.exe N/A
N/A N/A C:\portagentbrowserweb\Containerruntime.exe N/A
N/A N/A C:\portagentbrowserweb\Containerruntime.exe N/A
N/A N/A C:\portagentbrowserweb\Containerruntime.exe N/A
N/A N/A C:\portagentbrowserweb\Containerruntime.exe N/A
N/A N/A C:\portagentbrowserweb\Containerruntime.exe N/A
N/A N/A C:\portagentbrowserweb\Containerruntime.exe N/A
N/A N/A C:\portagentbrowserweb\Containerruntime.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\portagentbrowserweb\Containerruntime.exe N/A
Token: SeDebugPrivilege N/A C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1760 wrote to memory of 1296 N/A C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.exe C:\Windows\SysWOW64\WScript.exe
PID 1760 wrote to memory of 1296 N/A C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.exe C:\Windows\SysWOW64\WScript.exe
PID 1760 wrote to memory of 1296 N/A C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.exe C:\Windows\SysWOW64\WScript.exe
PID 1760 wrote to memory of 1296 N/A C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.exe C:\Windows\SysWOW64\WScript.exe
PID 1296 wrote to memory of 2552 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 1296 wrote to memory of 2552 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 1296 wrote to memory of 2552 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 1296 wrote to memory of 2552 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 2552 wrote to memory of 2768 N/A C:\Windows\SysWOW64\cmd.exe C:\portagentbrowserweb\Containerruntime.exe
PID 2552 wrote to memory of 2768 N/A C:\Windows\SysWOW64\cmd.exe C:\portagentbrowserweb\Containerruntime.exe
PID 2552 wrote to memory of 2768 N/A C:\Windows\SysWOW64\cmd.exe C:\portagentbrowserweb\Containerruntime.exe
PID 2552 wrote to memory of 2768 N/A C:\Windows\SysWOW64\cmd.exe C:\portagentbrowserweb\Containerruntime.exe
PID 2768 wrote to memory of 1644 N/A C:\portagentbrowserweb\Containerruntime.exe C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe
PID 2768 wrote to memory of 1644 N/A C:\portagentbrowserweb\Containerruntime.exe C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe
PID 2768 wrote to memory of 1644 N/A C:\portagentbrowserweb\Containerruntime.exe C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe
PID 2552 wrote to memory of 2144 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2552 wrote to memory of 2144 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2552 wrote to memory of 2144 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2552 wrote to memory of 2144 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.exe

"C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.exe"

C:\Windows\SysWOW64\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\portagentbrowserweb\WRLLAAz5wgYRSh1EMNi6f5aM.vbe"

C:\Windows\SysWOW64\cmd.exe

cmd /c ""C:\portagentbrowserweb\6X9rFgrS3wv5iM7PLkmLFP1j.bat" "

C:\portagentbrowserweb\Containerruntime.exe

"C:\portagentbrowserweb\Containerruntime.exe"

C:\Windows\system32\schtasks.exe

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

C:\Windows\system32\schtasks.exe

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

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\portagentbrowserweb\csrss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 8 /tr "'C:\Windows\ja-JP\winlogon.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Windows\ja-JP\winlogon.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 10 /tr "'C:\Windows\ja-JP\winlogon.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "explorere" /sc MINUTE /mo 8 /tr "'C:\portagentbrowserweb\explorer.exe'" /f

C:\Windows\system32\schtasks.exe

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

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "explorere" /sc MINUTE /mo 8 /tr "'C:\portagentbrowserweb\explorer.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 7 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\it\dwm.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\it\dwm.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 6 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\it\dwm.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "smsss" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "smsss" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\Idle.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\Idle.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\Idle.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "servicess" /sc MINUTE /mo 8 /tr "'C:\Recovery\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\services.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Recovery\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\services.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "servicess" /sc MINUTE /mo 9 /tr "'C:\Recovery\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\services.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 12 /tr "'C:\portagentbrowserweb\dwm.exe'" /f

C:\Windows\system32\schtasks.exe

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

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 5 /tr "'C:\portagentbrowserweb\dwm.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "servicess" /sc MINUTE /mo 7 /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.es\services.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.es\services.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "servicess" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.es\services.exe'" /rl HIGHEST /f

C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe

"C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\smss.exe"

C:\Windows\SysWOW64\reg.exe

reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 a0987415.xsph.ru udp
RU 141.8.192.26:80 a0987415.xsph.ru tcp
RU 141.8.192.26:80 a0987415.xsph.ru tcp
RU 141.8.192.26:80 a0987415.xsph.ru tcp

Files

C:\portagentbrowserweb\WRLLAAz5wgYRSh1EMNi6f5aM.vbe

MD5 61a07f2f9e8e9b1f5175b2d60c3e3f18
SHA1 e695b0c2b43c786453bf3f6ae504f0626951d281
SHA256 5c75708ec9e4fe419a2fd1067bd5793bacb28140177cc6b36300fbf28e7c23d1
SHA512 8ef3529f6bf504224e7803019f1e162aead7961bc1a5115f50fb5f580570e8b04707da21a7aab4eb7f1554a3b5333597fb3335e5f6a74dabfdb0583eecb35b5d

C:\portagentbrowserweb\6X9rFgrS3wv5iM7PLkmLFP1j.bat

MD5 c8f8a078dace2ff4cb106803c9199643
SHA1 a5029ff4c4f0f24b0fbe2951c9a8002501ebd3b5
SHA256 1b99d39fa273f33b072c67e0df7d33b1699fa17b7c7139467a658302a5ed0e0d
SHA512 efaea3b4653768bbd135a0ec55319df2464f1d440ad982f31a5eff05c5ba5032f4718683ff6419c668bf1f34a117b5a101f56d1efc1d74ad93e692c52686f999

\portagentbrowserweb\Containerruntime.exe

MD5 5887a563351ca99247b7e2c448bd9f2e
SHA1 b24695e88143863297535989900bb7521ea86d67
SHA256 e74cbd74c838db604926e27322342c02f803b95f98680d4089b5c01ed93fb390
SHA512 b7d82bd09ba64891b75bbb9356de74a1ed0835709a391698c1301825777418f57e4f2ae3c260d3f7b6ada05d0e7ddeb4a6b75901fdf53bdd82ffa2febb685107

memory/2768-13-0x0000000000940000-0x0000000000A72000-memory.dmp

memory/2768-14-0x00000000002D0000-0x00000000002EC000-memory.dmp

memory/2768-15-0x00000000002F0000-0x0000000000306000-memory.dmp

memory/2768-16-0x0000000000310000-0x000000000031C000-memory.dmp

memory/1644-41-0x00000000012C0000-0x00000000013F2000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-31 15:40

Reported

2024-05-31 15:43

Platform

win10v2004-20240426-en

Max time kernel

127s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.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

DCRat payload

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

Disables Task Manager via registry modification

evasion

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation C:\Windows\SysWOW64\WScript.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation C:\portagentbrowserweb\Containerruntime.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\portagentbrowserweb\Containerruntime.exe N/A
N/A N/A C:\Windows\Performance\WinSAT\dllhost.exe N/A

Reads user/profile data of web browsers

spyware stealer

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Windows Defender\fr-FR\Registry.exe C:\portagentbrowserweb\Containerruntime.exe N/A
File opened for modification C:\Program Files\Windows Defender\fr-FR\Registry.exe C:\portagentbrowserweb\Containerruntime.exe N/A
File created C:\Program Files\Windows Defender\fr-FR\ee2ad38f3d4382 C:\portagentbrowserweb\Containerruntime.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Performance\WinSAT\dllhost.exe C:\portagentbrowserweb\Containerruntime.exe N/A
File created C:\Windows\Performance\WinSAT\5940a34987c991 C:\portagentbrowserweb\Containerruntime.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000_Classes\Local Settings C:\portagentbrowserweb\Containerruntime.exe N/A
Key created \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000_Classes\Local Settings C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.exe N/A

Modifies registry key

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

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\Performance\WinSAT\dllhost.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\portagentbrowserweb\Containerruntime.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Performance\WinSAT\dllhost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1824 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.exe C:\Windows\SysWOW64\WScript.exe
PID 1824 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.exe C:\Windows\SysWOW64\WScript.exe
PID 1824 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.exe C:\Windows\SysWOW64\WScript.exe
PID 3636 wrote to memory of 960 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 3636 wrote to memory of 960 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 3636 wrote to memory of 960 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 960 wrote to memory of 1148 N/A C:\Windows\SysWOW64\cmd.exe C:\portagentbrowserweb\Containerruntime.exe
PID 960 wrote to memory of 1148 N/A C:\Windows\SysWOW64\cmd.exe C:\portagentbrowserweb\Containerruntime.exe
PID 1148 wrote to memory of 2380 N/A C:\portagentbrowserweb\Containerruntime.exe C:\Windows\System32\cmd.exe
PID 1148 wrote to memory of 2380 N/A C:\portagentbrowserweb\Containerruntime.exe C:\Windows\System32\cmd.exe
PID 960 wrote to memory of 1600 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 960 wrote to memory of 1600 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 960 wrote to memory of 1600 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2380 wrote to memory of 3436 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\w32tm.exe
PID 2380 wrote to memory of 3436 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\w32tm.exe
PID 2380 wrote to memory of 3448 N/A C:\Windows\System32\cmd.exe C:\Windows\Performance\WinSAT\dllhost.exe
PID 2380 wrote to memory of 3448 N/A C:\Windows\System32\cmd.exe C:\Windows\Performance\WinSAT\dllhost.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.exe

"C:\Users\Admin\AppData\Local\Temp\nursultan nexgen fix.exe"

C:\Windows\SysWOW64\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\portagentbrowserweb\WRLLAAz5wgYRSh1EMNi6f5aM.vbe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\portagentbrowserweb\6X9rFgrS3wv5iM7PLkmLFP1j.bat" "

C:\portagentbrowserweb\Containerruntime.exe

"C:\portagentbrowserweb\Containerruntime.exe"

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Defender\fr-FR\Registry.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Program Files\Windows Defender\fr-FR\Registry.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows Defender\fr-FR\Registry.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 5 /tr "'C:\Users\Default User\wininit.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Users\Default User\wininit.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 6 /tr "'C:\Users\Default User\wininit.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 9 /tr "'C:\Windows\Performance\WinSAT\dllhost.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\Performance\WinSAT\dllhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Windows\Performance\WinSAT\dllhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 6 /tr "'C:\portagentbrowserweb\TextInputHost.exe'" /f

C:\Windows\system32\schtasks.exe

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

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 9 /tr "'C:\portagentbrowserweb\TextInputHost.exe'" /rl HIGHEST /f

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\YFDr0KMIRH.bat"

C:\Windows\SysWOW64\reg.exe

reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f

C:\Windows\system32\w32tm.exe

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

C:\Windows\Performance\WinSAT\dllhost.exe

"C:\Windows\Performance\WinSAT\dllhost.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 a0987415.xsph.ru udp
RU 141.8.192.26:80 a0987415.xsph.ru tcp
RU 141.8.192.26:80 a0987415.xsph.ru tcp
US 8.8.8.8:53 26.192.8.141.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
RU 141.8.192.26:80 a0987415.xsph.ru tcp

Files

C:\portagentbrowserweb\WRLLAAz5wgYRSh1EMNi6f5aM.vbe

MD5 61a07f2f9e8e9b1f5175b2d60c3e3f18
SHA1 e695b0c2b43c786453bf3f6ae504f0626951d281
SHA256 5c75708ec9e4fe419a2fd1067bd5793bacb28140177cc6b36300fbf28e7c23d1
SHA512 8ef3529f6bf504224e7803019f1e162aead7961bc1a5115f50fb5f580570e8b04707da21a7aab4eb7f1554a3b5333597fb3335e5f6a74dabfdb0583eecb35b5d

C:\portagentbrowserweb\6X9rFgrS3wv5iM7PLkmLFP1j.bat

MD5 c8f8a078dace2ff4cb106803c9199643
SHA1 a5029ff4c4f0f24b0fbe2951c9a8002501ebd3b5
SHA256 1b99d39fa273f33b072c67e0df7d33b1699fa17b7c7139467a658302a5ed0e0d
SHA512 efaea3b4653768bbd135a0ec55319df2464f1d440ad982f31a5eff05c5ba5032f4718683ff6419c668bf1f34a117b5a101f56d1efc1d74ad93e692c52686f999

C:\portagentbrowserweb\Containerruntime.exe

MD5 5887a563351ca99247b7e2c448bd9f2e
SHA1 b24695e88143863297535989900bb7521ea86d67
SHA256 e74cbd74c838db604926e27322342c02f803b95f98680d4089b5c01ed93fb390
SHA512 b7d82bd09ba64891b75bbb9356de74a1ed0835709a391698c1301825777418f57e4f2ae3c260d3f7b6ada05d0e7ddeb4a6b75901fdf53bdd82ffa2febb685107

memory/1148-12-0x00007FF83D5B3000-0x00007FF83D5B5000-memory.dmp

memory/1148-13-0x0000000000B10000-0x0000000000C42000-memory.dmp

memory/1148-14-0x0000000002E30000-0x0000000002E4C000-memory.dmp

memory/1148-15-0x000000001BF70000-0x000000001BFC0000-memory.dmp

memory/1148-17-0x0000000001520000-0x000000000152C000-memory.dmp

memory/1148-16-0x000000001B890000-0x000000001B8A6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\YFDr0KMIRH.bat

MD5 ac27e96e94bb2adcf5f2d54c9af90177
SHA1 2cdb8d4d4eff01e605657b0ba3f88ccf3c6326ff
SHA256 b8fc2de8c326bfd6f4d4e18f01e6733f97dea4d5ff89b97b07b0ff71b550b609
SHA512 9fb016e97762aae38fb52e65bd82c1b0ebd6d200d2691c6166edc3713534ee8f1b437f7d944872ade14578b73fbd9b5f477da211d211826f57f384e7a9d476fc