Malware Analysis Report

2025-08-05 09:54

Sample ID 231207-gmzh9sheem
Target 44e2a2a697477c436112954794761cc0.exe
SHA256 90f403c6304240465460ace49b8db9d46c7d28bc36fd49b89f4722ee497bd2dd
Tags
dcrat infostealer rat
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

90f403c6304240465460ace49b8db9d46c7d28bc36fd49b89f4722ee497bd2dd

Threat Level: Known bad

The file 44e2a2a697477c436112954794761cc0.exe was found to be: Known bad.

Malicious Activity Summary

dcrat infostealer rat

Process spawned unexpected child process

DcRat

Dcrat family

DCRat payload

DCRat payload

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Legitimate hosting services abused for malware hosting/C2

Drops file in Windows directory

Drops file in Program Files directory

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious behavior: GetForegroundWindowSpam

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Uses Task Scheduler COM API

Suspicious behavior: EnumeratesProcesses

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-07 05:56

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

2023-12-07 05:55

Reported

2023-12-07 05:58

Platform

win7-20231130-en

Max time kernel

129s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.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

DCRat payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
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N/A N/A N/A N/A
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N/A N/A N/A N/A
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Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\bridgewin\intoperf.exe N/A
N/A N/A C:\Program Files\Windows Journal\dwm.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

Legitimate hosting services abused for malware hosting/C2

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Windows Portable Devices\System.exe C:\bridgewin\intoperf.exe N/A
File created C:\Program Files\Windows Portable Devices\27d1bcfc3c54e0 C:\bridgewin\intoperf.exe N/A
File created C:\Program Files\Windows Journal\dwm.exe C:\bridgewin\intoperf.exe N/A
File created C:\Program Files\Windows Journal\6cb0b6c459d5d3 C:\bridgewin\intoperf.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Branding\Basebrd\en-US\101b941d020240 C:\bridgewin\intoperf.exe N/A
File created C:\Windows\Web\Wallpaper\Characters\conhost.exe C:\bridgewin\intoperf.exe N/A
File created C:\Windows\Web\Wallpaper\Characters\088424020bedd6 C:\bridgewin\intoperf.exe N/A
File created C:\Windows\Branding\Basebrd\en-US\lsm.exe C:\bridgewin\intoperf.exe N/A
File opened for modification C:\Windows\Branding\Basebrd\en-US\lsm.exe C:\bridgewin\intoperf.exe N/A

Enumerates physical storage devices

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Program Files\Windows Journal\dwm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\bridgewin\intoperf.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files\Windows Journal\dwm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3052 wrote to memory of 2828 N/A C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.exe C:\Windows\SysWOW64\WScript.exe
PID 3052 wrote to memory of 2828 N/A C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.exe C:\Windows\SysWOW64\WScript.exe
PID 3052 wrote to memory of 2828 N/A C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.exe C:\Windows\SysWOW64\WScript.exe
PID 3052 wrote to memory of 2828 N/A C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.exe C:\Windows\SysWOW64\WScript.exe
PID 2828 wrote to memory of 2128 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 2828 wrote to memory of 2128 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 2828 wrote to memory of 2128 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 2828 wrote to memory of 2128 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 2128 wrote to memory of 2536 N/A C:\Windows\SysWOW64\cmd.exe C:\bridgewin\intoperf.exe
PID 2128 wrote to memory of 2536 N/A C:\Windows\SysWOW64\cmd.exe C:\bridgewin\intoperf.exe
PID 2128 wrote to memory of 2536 N/A C:\Windows\SysWOW64\cmd.exe C:\bridgewin\intoperf.exe
PID 2128 wrote to memory of 2536 N/A C:\Windows\SysWOW64\cmd.exe C:\bridgewin\intoperf.exe
PID 2536 wrote to memory of 2268 N/A C:\bridgewin\intoperf.exe C:\Windows\System32\cmd.exe
PID 2536 wrote to memory of 2268 N/A C:\bridgewin\intoperf.exe C:\Windows\System32\cmd.exe
PID 2536 wrote to memory of 2268 N/A C:\bridgewin\intoperf.exe C:\Windows\System32\cmd.exe
PID 2268 wrote to memory of 2956 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\w32tm.exe
PID 2268 wrote to memory of 2956 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\w32tm.exe
PID 2268 wrote to memory of 2956 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\w32tm.exe
PID 2268 wrote to memory of 1116 N/A C:\Windows\System32\cmd.exe C:\Program Files\Windows Journal\dwm.exe
PID 2268 wrote to memory of 1116 N/A C:\Windows\System32\cmd.exe C:\Program Files\Windows Journal\dwm.exe
PID 2268 wrote to memory of 1116 N/A C:\Windows\System32\cmd.exe C:\Program Files\Windows Journal\dwm.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.exe

"C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.exe"

C:\Windows\SysWOW64\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\bridgewin\j1qIwrxR5PWhzH3rYbChGhv1rfV.vbe"

C:\Windows\SysWOW64\cmd.exe

cmd /c ""C:\bridgewin\aVtauS9Ns.bat" "

C:\bridgewin\intoperf.exe

"C:\bridgewin\intoperf.exe"

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "lsml" /sc MINUTE /mo 10 /tr "'C:\Windows\Branding\Basebrd\en-US\lsm.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Windows\Branding\Basebrd\en-US\lsm.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "lsml" /sc MINUTE /mo 8 /tr "'C:\Windows\Branding\Basebrd\en-US\lsm.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 10 /tr "'C:\Windows\Web\Wallpaper\Characters\conhost.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Windows\Web\Wallpaper\Characters\conhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 12 /tr "'C:\Windows\Web\Wallpaper\Characters\conhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Portable Devices\System.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Program Files\Windows Portable Devices\System.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Portable Devices\System.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\bridgewin\csrss.exe'" /f

C:\Windows\system32\schtasks.exe

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

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 9 /tr "'C:\bridgewin\csrss.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 14 /tr "'C:\Recovery\cb3b2b82-8fa0-11ee-b553-66adf901a452\conhost.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Recovery\cb3b2b82-8fa0-11ee-b553-66adf901a452\conhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 10 /tr "'C:\Recovery\cb3b2b82-8fa0-11ee-b553-66adf901a452\conhost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 11 /tr "'C:\MSOCache\All Users\{90140000-001B-0409-0000-0000000FF1CE}-C\winlogon.exe'" /f

C:\Windows\system32\schtasks.exe

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

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-001B-0409-0000-0000000FF1CE}-C\winlogon.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Journal\dwm.exe'" /f

C:\Windows\system32\schtasks.exe

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

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Journal\dwm.exe'" /rl HIGHEST /f

C:\Windows\System32\cmd.exe

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

C:\Windows\system32\w32tm.exe

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

C:\Program Files\Windows Journal\dwm.exe

"C:\Program Files\Windows Journal\dwm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 pastebin.com udp
US 104.20.67.143:443 pastebin.com tcp
US 8.8.8.8:53 www.microsoft.com udp
US 8.8.8.8:53 f0892247.xsph.ru udp
RU 141.8.193.236:80 f0892247.xsph.ru tcp
RU 141.8.193.236:80 f0892247.xsph.ru tcp
RU 141.8.193.236:80 f0892247.xsph.ru tcp

Files

C:\bridgewin\j1qIwrxR5PWhzH3rYbChGhv1rfV.vbe

MD5 bcb81ae961fe26cc730d5429caee2a15
SHA1 5eee2200e5a5d79aa54e9de51a5e7332d26b32fc
SHA256 d8fe32ec91d7d9e865ce5f3a3382d6093ea78fbeb4dfe521021ad918f6f64bc3
SHA512 aaea8d450d6ca80ff0b6d82b8585a9e808863891fbc2de9387ad0220263d98898c89bebca90d331bef7eb900718c8625d4a259c0034b05246524e6d83fe5599d

C:\bridgewin\aVtauS9Ns.bat

MD5 9563bdb4457bb726008ec17163dcefe6
SHA1 7c2927cc8ae633484e96cf0926eabadcffe44554
SHA256 f7016b9d9c3f1d7b89e0a4c06b1183e0d7207be92bad7e7cc960e976758fac4c
SHA512 5e5cb09ac2017366cbc024e452983ea783b763b837e00c67e450a86a7b83fbc5bf97da87b19d41f0393e8faf5d97491529d55a52e4556868a249d299bc002591

\bridgewin\intoperf.exe

MD5 cb173771fd6331c5d9db3bef77acb57a
SHA1 f3680aab95eb9f37b38cc616bc6b01db3cc953c2
SHA256 251f52babec252887919e29c83180c6075a08e395f7fc2f44222e0dd320478b8
SHA512 826730b301286e2d1c1137716c393a2fee686cc3146852e3903e9b3ca7026dce9dbb839537028d8deb16903d60b4604830b51992058f649cc2259cacf3f55bb7

\bridgewin\intoperf.exe

MD5 cb173771fd6331c5d9db3bef77acb57a
SHA1 f3680aab95eb9f37b38cc616bc6b01db3cc953c2
SHA256 251f52babec252887919e29c83180c6075a08e395f7fc2f44222e0dd320478b8
SHA512 826730b301286e2d1c1137716c393a2fee686cc3146852e3903e9b3ca7026dce9dbb839537028d8deb16903d60b4604830b51992058f649cc2259cacf3f55bb7

C:\bridgewin\intoperf.exe

MD5 cb173771fd6331c5d9db3bef77acb57a
SHA1 f3680aab95eb9f37b38cc616bc6b01db3cc953c2
SHA256 251f52babec252887919e29c83180c6075a08e395f7fc2f44222e0dd320478b8
SHA512 826730b301286e2d1c1137716c393a2fee686cc3146852e3903e9b3ca7026dce9dbb839537028d8deb16903d60b4604830b51992058f649cc2259cacf3f55bb7

C:\bridgewin\intoperf.exe

MD5 cb173771fd6331c5d9db3bef77acb57a
SHA1 f3680aab95eb9f37b38cc616bc6b01db3cc953c2
SHA256 251f52babec252887919e29c83180c6075a08e395f7fc2f44222e0dd320478b8
SHA512 826730b301286e2d1c1137716c393a2fee686cc3146852e3903e9b3ca7026dce9dbb839537028d8deb16903d60b4604830b51992058f649cc2259cacf3f55bb7

memory/2536-13-0x0000000000FD0000-0x00000000010A6000-memory.dmp

memory/2536-14-0x000007FEF5840000-0x000007FEF622C000-memory.dmp

memory/2536-15-0x000000001B0E0000-0x000000001B160000-memory.dmp

C:\Program Files\Windows Portable Devices\System.exe

MD5 cb173771fd6331c5d9db3bef77acb57a
SHA1 f3680aab95eb9f37b38cc616bc6b01db3cc953c2
SHA256 251f52babec252887919e29c83180c6075a08e395f7fc2f44222e0dd320478b8
SHA512 826730b301286e2d1c1137716c393a2fee686cc3146852e3903e9b3ca7026dce9dbb839537028d8deb16903d60b4604830b51992058f649cc2259cacf3f55bb7

memory/2536-34-0x000007FEF5840000-0x000007FEF622C000-memory.dmp

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

MD5 8ead1ad0a44a4f49e8aab28ed03b0605
SHA1 89f4c090c0190dfb0aeff59c84453db3cd8c2b7b
SHA256 ba03543f616da58ade674bc74194d9ab2ccd7da6bf6a737c6e0d5e28f68df10b
SHA512 5c397be976c99b8842c49ba516bf0e9abf3c7af947cbf90944242d69a7c45e18d22360a6d8d201b402496bf3676e368f5cc7bee3f34f646a4757615d213b022e

C:\Program Files\Windows Journal\dwm.exe

MD5 cb173771fd6331c5d9db3bef77acb57a
SHA1 f3680aab95eb9f37b38cc616bc6b01db3cc953c2
SHA256 251f52babec252887919e29c83180c6075a08e395f7fc2f44222e0dd320478b8
SHA512 826730b301286e2d1c1137716c393a2fee686cc3146852e3903e9b3ca7026dce9dbb839537028d8deb16903d60b4604830b51992058f649cc2259cacf3f55bb7

C:\Program Files\Windows Journal\dwm.exe

MD5 cb173771fd6331c5d9db3bef77acb57a
SHA1 f3680aab95eb9f37b38cc616bc6b01db3cc953c2
SHA256 251f52babec252887919e29c83180c6075a08e395f7fc2f44222e0dd320478b8
SHA512 826730b301286e2d1c1137716c393a2fee686cc3146852e3903e9b3ca7026dce9dbb839537028d8deb16903d60b4604830b51992058f649cc2259cacf3f55bb7

memory/1116-38-0x0000000000F50000-0x0000000001026000-memory.dmp

memory/1116-39-0x000007FEF4E50000-0x000007FEF583C000-memory.dmp

memory/1116-40-0x0000000000BA0000-0x0000000000C20000-memory.dmp

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

MD5 ac05d27423a85adc1622c714f2cb6184
SHA1 b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA512 6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

C:\Users\Admin\AppData\Local\Temp\Tar565F.tmp

MD5 9c0c641c06238516f27941aa1166d427
SHA1 64cd549fb8cf014fcd9312aa7a5b023847b6c977
SHA256 4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
SHA512 936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

memory/1116-77-0x000007FEF4E50000-0x000007FEF583C000-memory.dmp

memory/1116-78-0x0000000000BA0000-0x0000000000C20000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-07 05:55

Reported

2023-12-07 05:58

Platform

win10v2004-20231201-en

Max time kernel

145s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.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
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Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2192493100-457715857-1189582111-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-2192493100-457715857-1189582111-1000\Control Panel\International\Geo\Nation C:\Windows\SysWOW64\WScript.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-2192493100-457715857-1189582111-1000\Control Panel\International\Geo\Nation C:\bridgewin\intoperf.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\bridgewin\intoperf.exe N/A
N/A N/A C:\Program Files\Windows Multimedia Platform\wininit.exe N/A

Legitimate hosting services abused for malware hosting/C2

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Microsoft Office\Updates\Download\5940a34987c991 C:\bridgewin\intoperf.exe N/A
File created C:\Program Files\Windows Multimedia Platform\wininit.exe C:\bridgewin\intoperf.exe N/A
File opened for modification C:\Program Files\Windows Multimedia Platform\wininit.exe C:\bridgewin\intoperf.exe N/A
File created C:\Program Files\Windows Multimedia Platform\56085415360792 C:\bridgewin\intoperf.exe N/A
File created C:\Program Files\Microsoft Office\Updates\Download\dllhost.exe C:\bridgewin\intoperf.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2192493100-457715857-1189582111-1000_Classes\Local Settings C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2192493100-457715857-1189582111-1000_Classes\Local Settings C:\bridgewin\intoperf.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Program Files\Windows Multimedia Platform\wininit.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\bridgewin\intoperf.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files\Windows Multimedia Platform\wininit.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3856 wrote to memory of 1360 N/A C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.exe C:\Windows\SysWOW64\WScript.exe
PID 3856 wrote to memory of 1360 N/A C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.exe C:\Windows\SysWOW64\WScript.exe
PID 3856 wrote to memory of 1360 N/A C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.exe C:\Windows\SysWOW64\WScript.exe
PID 1360 wrote to memory of 3116 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 1360 wrote to memory of 3116 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 1360 wrote to memory of 3116 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\cmd.exe
PID 3116 wrote to memory of 3860 N/A C:\Windows\SysWOW64\cmd.exe C:\bridgewin\intoperf.exe
PID 3116 wrote to memory of 3860 N/A C:\Windows\SysWOW64\cmd.exe C:\bridgewin\intoperf.exe
PID 3860 wrote to memory of 3816 N/A C:\bridgewin\intoperf.exe C:\Windows\System32\cmd.exe
PID 3860 wrote to memory of 3816 N/A C:\bridgewin\intoperf.exe C:\Windows\System32\cmd.exe
PID 3816 wrote to memory of 3692 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\w32tm.exe
PID 3816 wrote to memory of 3692 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\w32tm.exe
PID 3816 wrote to memory of 3580 N/A C:\Windows\System32\cmd.exe C:\Program Files\Windows Multimedia Platform\wininit.exe
PID 3816 wrote to memory of 3580 N/A C:\Windows\System32\cmd.exe C:\Program Files\Windows Multimedia Platform\wininit.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.exe

"C:\Users\Admin\AppData\Local\Temp\44e2a2a697477c436112954794761cc0.exe"

C:\Windows\SysWOW64\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\bridgewin\j1qIwrxR5PWhzH3rYbChGhv1rfV.vbe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\bridgewin\aVtauS9Ns.bat" "

C:\bridgewin\intoperf.exe

"C:\bridgewin\intoperf.exe"

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 8 /tr "'C:\Program Files\Windows Multimedia Platform\wininit.exe'" /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Program Files\Windows Multimedia Platform\wininit.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Multimedia Platform\wininit.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 9 /tr "'C:\Users\Default\SendTo\backgroundTaskHost.exe'" /f

C:\Windows\system32\schtasks.exe

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

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 10 /tr "'C:\Users\Default\SendTo\backgroundTaskHost.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 7 /tr "'C:\Users\Default User\lsass.exe'" /f

C:\Windows\system32\schtasks.exe

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

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 8 /tr "'C:\Users\Default User\lsass.exe'" /rl HIGHEST /f

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 8 /tr "'C:\Program Files\Microsoft Office\Updates\Download\dllhost.exe'" /f

C:\Windows\system32\schtasks.exe

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

C:\Windows\system32\schtasks.exe

schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 11 /tr "'C:\Program Files\Microsoft Office\Updates\Download\dllhost.exe'" /rl HIGHEST /f

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\6uMYZ5DmT2.bat"

C:\Windows\system32\w32tm.exe

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

C:\Program Files\Windows Multimedia Platform\wininit.exe

"C:\Program Files\Windows Multimedia Platform\wininit.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 104.20.67.143:443 pastebin.com tcp
US 8.8.8.8:53 f0892247.xsph.ru udp
RU 141.8.193.236:80 f0892247.xsph.ru tcp
RU 141.8.193.236:80 f0892247.xsph.ru tcp
US 8.8.8.8:53 143.67.20.104.in-addr.arpa udp
US 8.8.8.8:53 236.193.8.141.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 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
RU 141.8.193.236:80 f0892247.xsph.ru tcp
US 8.8.8.8:53 89.16.208.104.in-addr.arpa udp

Files

C:\bridgewin\j1qIwrxR5PWhzH3rYbChGhv1rfV.vbe

MD5 bcb81ae961fe26cc730d5429caee2a15
SHA1 5eee2200e5a5d79aa54e9de51a5e7332d26b32fc
SHA256 d8fe32ec91d7d9e865ce5f3a3382d6093ea78fbeb4dfe521021ad918f6f64bc3
SHA512 aaea8d450d6ca80ff0b6d82b8585a9e808863891fbc2de9387ad0220263d98898c89bebca90d331bef7eb900718c8625d4a259c0034b05246524e6d83fe5599d

C:\bridgewin\aVtauS9Ns.bat

MD5 9563bdb4457bb726008ec17163dcefe6
SHA1 7c2927cc8ae633484e96cf0926eabadcffe44554
SHA256 f7016b9d9c3f1d7b89e0a4c06b1183e0d7207be92bad7e7cc960e976758fac4c
SHA512 5e5cb09ac2017366cbc024e452983ea783b763b837e00c67e450a86a7b83fbc5bf97da87b19d41f0393e8faf5d97491529d55a52e4556868a249d299bc002591

C:\bridgewin\intoperf.exe

MD5 cb173771fd6331c5d9db3bef77acb57a
SHA1 f3680aab95eb9f37b38cc616bc6b01db3cc953c2
SHA256 251f52babec252887919e29c83180c6075a08e395f7fc2f44222e0dd320478b8
SHA512 826730b301286e2d1c1137716c393a2fee686cc3146852e3903e9b3ca7026dce9dbb839537028d8deb16903d60b4604830b51992058f649cc2259cacf3f55bb7

C:\bridgewin\intoperf.exe

MD5 cb173771fd6331c5d9db3bef77acb57a
SHA1 f3680aab95eb9f37b38cc616bc6b01db3cc953c2
SHA256 251f52babec252887919e29c83180c6075a08e395f7fc2f44222e0dd320478b8
SHA512 826730b301286e2d1c1137716c393a2fee686cc3146852e3903e9b3ca7026dce9dbb839537028d8deb16903d60b4604830b51992058f649cc2259cacf3f55bb7

memory/3860-12-0x0000000000A60000-0x0000000000B36000-memory.dmp

memory/3860-13-0x00007FFBFAB60000-0x00007FFBFB621000-memory.dmp

memory/3860-14-0x000000001B800000-0x000000001B810000-memory.dmp

C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\backgroundTaskHost.exe

MD5 cb173771fd6331c5d9db3bef77acb57a
SHA1 f3680aab95eb9f37b38cc616bc6b01db3cc953c2
SHA256 251f52babec252887919e29c83180c6075a08e395f7fc2f44222e0dd320478b8
SHA512 826730b301286e2d1c1137716c393a2fee686cc3146852e3903e9b3ca7026dce9dbb839537028d8deb16903d60b4604830b51992058f649cc2259cacf3f55bb7

memory/3860-28-0x00007FFBFAB60000-0x00007FFBFB621000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\6uMYZ5DmT2.bat

MD5 3ed36fce1a7bb42e8bd8a9010f997c14
SHA1 f81441e8593b15b861750d9b7e080a0fc7de0954
SHA256 e6aa8a2142db52fb2945de64c955a768048be27fff1f3b2552036a0293d453c6
SHA512 4bd469714d4b931fb6c2f014f8a5071c7e403bae7bead6905d7c2c44e0e7e93ce5da940d85e25b8880536161a208cacef3bc1c8d08c7f9d21708dfe148c65699

C:\Program Files\Windows Multimedia Platform\wininit.exe

MD5 cb173771fd6331c5d9db3bef77acb57a
SHA1 f3680aab95eb9f37b38cc616bc6b01db3cc953c2
SHA256 251f52babec252887919e29c83180c6075a08e395f7fc2f44222e0dd320478b8
SHA512 826730b301286e2d1c1137716c393a2fee686cc3146852e3903e9b3ca7026dce9dbb839537028d8deb16903d60b4604830b51992058f649cc2259cacf3f55bb7

C:\Program Files\Windows Multimedia Platform\wininit.exe

MD5 cb173771fd6331c5d9db3bef77acb57a
SHA1 f3680aab95eb9f37b38cc616bc6b01db3cc953c2
SHA256 251f52babec252887919e29c83180c6075a08e395f7fc2f44222e0dd320478b8
SHA512 826730b301286e2d1c1137716c393a2fee686cc3146852e3903e9b3ca7026dce9dbb839537028d8deb16903d60b4604830b51992058f649cc2259cacf3f55bb7

memory/3580-33-0x00007FFBFAB60000-0x00007FFBFB621000-memory.dmp

memory/3580-34-0x0000000001700000-0x0000000001710000-memory.dmp

memory/3580-35-0x00007FFBFAB60000-0x00007FFBFB621000-memory.dmp

memory/3580-36-0x0000000001700000-0x0000000001710000-memory.dmp