imminent | a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635

General

Target

a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe
Size

452KB
MD5

88140b8a47b523da3f16de466e6ddbd7
SHA1

889dfdd52e48616862f48428e5fcb145d9a88255
SHA256

a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635
SHA512

d6e7fe3dbbf75745ec4da3371051d3b12a0677f8d20b28487b9ba017c19be758d561434ff8b6be1def6984fb5c83646d44f8b9d0ea09e2aa96d5eef6bb399452
SSDEEP

12288:KFhlFYQMvgPhzLuvBszuKmx+Dj3Avzxenf4/41:KrlyQJzLuQu/+/3Yzxenf4g

Score

10^/10

imminent persistence spyware trojan

Malware Config

Signatures

Imminent RAT
Remote-access trojan based on Imminent Monitor remote admin software.
trojan spyware imminent

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\SunJava\\JavaUpdata.exe"	reg.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe
File created	C:\Windows\assembly\Desktop.ini	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4412 set thread context of 4640	4412	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe	87

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe
File created	C:\Windows\assembly\Desktop.ini	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4640	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4640	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4640	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 4640	4412	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe	87
PID 4412 wrote to memory of 4640	4412	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe	87
PID 4412 wrote to memory of 4640	4412	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe	87
PID 4412 wrote to memory of 4640	4412	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe	87
PID 4412 wrote to memory of 4640	4412	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe	87
PID 4412 wrote to memory of 4640	4412	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe	87
PID 4412 wrote to memory of 4640	4412	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe	87
PID 4412 wrote to memory of 4640	4412	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe	87
PID 4412 wrote to memory of 4064	4412	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe	88
PID 4412 wrote to memory of 4064	4412	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe	88
PID 4412 wrote to memory of 4064	4412	a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe	88
PID 4064 wrote to memory of 4020	4064	cmd.exe	90
PID 4064 wrote to memory of 4020	4064	cmd.exe	90
PID 4064 wrote to memory of 4020	4064	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe
"C:\Users\Admin\AppData\Local\Temp\a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Users\Admin\AppData\Local\Temp\a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe
  "C:\Users\Admin\AppData\Local\Temp\a4f3f4ffb7e625b76cc509b7c49d98669f0e0f5b3dde5b241d1b30c3d51d0635.exe"
  2⤵
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d explorer.exe,"C:\Users\Admin\AppData\Roaming\SunJava\JavaUpdata.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4064
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d explorer.exe,"C:\Users\Admin\AppData\Roaming\SunJava\JavaUpdata.exe"
    3⤵
    - Modifies WinLogon for persistence
    PID:4020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4412-132-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/4412-133-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/4412-139-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/4640-135-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/4640-136-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/4640-140-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download

Analysis

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