darkcomet | 841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05

General

Target

841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe
Size

522KB
MD5

9dfb07602ea0746b21957d2610ed52d9
SHA1

1114f93efba5d9992ad8b71363db60b24e219b6c
SHA256

841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05
SHA512

b6a646ab82e4910e818aa07525264f2548a17c42837ca3cdb871627ee4ac840501d8afa2f2c62e1ad24d06babe11cd87ab4fa8e7e373ff9590fbb9ea6f6ea464
SSDEEP

12288:V5yqq4mBet9eHsgfZpj1+F2l+5IThMHChFOI1Ar0JE/ZkVSGZpU:bmW9ZSlIgl+5ITSChNaoJER

Score

10^/10

darkcomet lalx persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Lalx

C2

vxqpok2983.ddns.net:1604

Mutex

DC_MUTEX-3HK5ZXQ

Attributes

gencode
vKh92RY4kw3H
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Users\\Admin\\AppData\\Roaming\\hZzNRuWMon\\pmrIFVKAmG.exe,explorer.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1584 set thread context of 220	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	88

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe
1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe
1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe
1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe
1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe
Token: SeIncreaseQuotaPrivilege	220	AppLaunch.exe
Token: SeSecurityPrivilege	220	AppLaunch.exe
Token: SeTakeOwnershipPrivilege	220	AppLaunch.exe
Token: SeLoadDriverPrivilege	220	AppLaunch.exe
Token: SeSystemProfilePrivilege	220	AppLaunch.exe
Token: SeSystemtimePrivilege	220	AppLaunch.exe
Token: SeProfSingleProcessPrivilege	220	AppLaunch.exe
Token: SeIncBasePriorityPrivilege	220	AppLaunch.exe
Token: SeCreatePagefilePrivilege	220	AppLaunch.exe
Token: SeBackupPrivilege	220	AppLaunch.exe
Token: SeRestorePrivilege	220	AppLaunch.exe
Token: SeShutdownPrivilege	220	AppLaunch.exe
Token: SeDebugPrivilege	220	AppLaunch.exe
Token: SeSystemEnvironmentPrivilege	220	AppLaunch.exe
Token: SeChangeNotifyPrivilege	220	AppLaunch.exe
Token: SeRemoteShutdownPrivilege	220	AppLaunch.exe
Token: SeUndockPrivilege	220	AppLaunch.exe
Token: SeManageVolumePrivilege	220	AppLaunch.exe
Token: SeImpersonatePrivilege	220	AppLaunch.exe
Token: SeCreateGlobalPrivilege	220	AppLaunch.exe
Token: 33	220	AppLaunch.exe
Token: 34	220	AppLaunch.exe
Token: 35	220	AppLaunch.exe
Token: 36	220	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
220	AppLaunch.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1584 wrote to memory of 540	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	85
PID 1584 wrote to memory of 540	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	85
PID 1584 wrote to memory of 540	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	85
PID 540 wrote to memory of 2776	540	cmd.exe	87
PID 540 wrote to memory of 2776	540	cmd.exe	87
PID 540 wrote to memory of 2776	540	cmd.exe	87
PID 1584 wrote to memory of 220	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	88
PID 1584 wrote to memory of 220	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	88
PID 1584 wrote to memory of 220	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	88
PID 1584 wrote to memory of 220	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	88
PID 1584 wrote to memory of 220	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	88
PID 1584 wrote to memory of 220	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	88
PID 1584 wrote to memory of 220	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	88
PID 1584 wrote to memory of 220	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	88
PID 1584 wrote to memory of 220	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	88
PID 1584 wrote to memory of 220	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	88
PID 1584 wrote to memory of 220	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	88
PID 1584 wrote to memory of 220	1584	841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe	88

C:\Users\Admin\AppData\Local\Temp\841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe
"C:\Users\Admin\AppData\Local\Temp\841262726e83cc2a62b2c0d523426bcb6a38829b033a6530ec3e76b6521ebe05.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1584
- 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 "C:\Users\Admin\AppData\Roaming\hZzNRuWMon\pmrIFVKAmG.exe,explorer.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:540
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\hZzNRuWMon\pmrIFVKAmG.exe,explorer.exe"
    3⤵
    - Modifies WinLogon for persistence
    PID:2776
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:220

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/220-137-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/220-138-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/220-139-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/220-140-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/220-141-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1584-132-0x0000000074CA0000-0x0000000075251000-memory.dmp

Filesize
5.7MB

Download
memory/1584-133-0x0000000074CA0000-0x0000000075251000-memory.dmp

Filesize
5.7MB

Download

Analysis

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