darkcomet | 2eb45ce19f9af4c16e7e1ebb2d4ee817fb9aba2ba81847f145ff242b77cb5998

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
18/07/2024, 03:11

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General

Target
55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Size 2.8MB
Sample240718-dppkassfnk
SHA256 2eb45ce19f9af4c16e7e1ebb2d4ee817fb9aba2ba81847f145ff242b77cb5998
MD5 55ecd1267e9e7a0edb77f24f81b27616
SHA1 d5f1b2a553fd2cb36c8e5361ea865c5049f39069
SHA512 38766bf602862ede227886cd4b74c3955622bf5d815e63c6d4bbc2d730b15f63b373d0ff9bc9eb585d44cfcf0fb907acb9685bc001dfa4b0ee9e3d3e87f78802
SSDEEP 3072:s1Ul/AE5t6YQS1UrxwxzwroK2ktmgLobCb9F1XWqCjDaGTiU+BDIWV4/5nCfLfEW:sN8q6Fw4roxN/qSIQhUE
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

sorry.sytes.net:1604
sorry.sytes.net:99

Mutex

DC_MUTEX-CWXB70Z

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
EK8rZkvhlqAH
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

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

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.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-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\International\Geo\Nation	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
628	msdcsc.exe
2376	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1960 set thread context of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 628 set thread context of 2376	628	msdcsc.exe	93

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2376	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeSecurityPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeBackupPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeRestorePrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeShutdownPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeDebugPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeUndockPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: 33	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: 34	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: 35	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: 36	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2376	msdcsc.exe
Token: SeSecurityPrivilege	2376	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2376	msdcsc.exe
Token: SeLoadDriverPrivilege	2376	msdcsc.exe
Token: SeSystemProfilePrivilege	2376	msdcsc.exe
Token: SeSystemtimePrivilege	2376	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2376	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2376	msdcsc.exe
Token: SeCreatePagefilePrivilege	2376	msdcsc.exe
Token: SeBackupPrivilege	2376	msdcsc.exe
Token: SeRestorePrivilege	2376	msdcsc.exe
Token: SeShutdownPrivilege	2376	msdcsc.exe
Token: SeDebugPrivilege	2376	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2376	msdcsc.exe
Token: SeChangeNotifyPrivilege	2376	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2376	msdcsc.exe
Token: SeUndockPrivilege	2376	msdcsc.exe
Token: SeManageVolumePrivilege	2376	msdcsc.exe
Token: SeImpersonatePrivilege	2376	msdcsc.exe
Token: SeCreateGlobalPrivilege	2376	msdcsc.exe
Token: 33	2376	msdcsc.exe
Token: 34	2376	msdcsc.exe
Token: 35	2376	msdcsc.exe
Token: 36	2376	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
628	msdcsc.exe
2376	msdcsc.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 1960 wrote to memory of 4868	1960	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	87
PID 4868 wrote to memory of 628	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	90
PID 4868 wrote to memory of 628	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	90
PID 4868 wrote to memory of 628	4868	55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe	90
PID 628 wrote to memory of 2376	628	msdcsc.exe	93
PID 628 wrote to memory of 2376	628	msdcsc.exe	93
PID 628 wrote to memory of 2376	628	msdcsc.exe	93
PID 628 wrote to memory of 2376	628	msdcsc.exe	93
PID 628 wrote to memory of 2376	628	msdcsc.exe	93
PID 628 wrote to memory of 2376	628	msdcsc.exe	93
PID 628 wrote to memory of 2376	628	msdcsc.exe	93
PID 628 wrote to memory of 2376	628	msdcsc.exe	93
PID 628 wrote to memory of 2376	628	msdcsc.exe	93
PID 628 wrote to memory of 2376	628	msdcsc.exe	93
PID 628 wrote to memory of 2376	628	msdcsc.exe	93
PID 628 wrote to memory of 2376	628	msdcsc.exe	93
PID 628 wrote to memory of 2376	628	msdcsc.exe	93
PID 628 wrote to memory of 2376	628	msdcsc.exe	93

C:\Users\Admin\AppData\Local\Temp\55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1960
- C:\Users\Admin\AppData\Local\Temp\55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\55ecd1267e9e7a0edb77f24f81b27616_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in Drivers directory
  - Checks computer location settings
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4868
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:628
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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msdcsc.exe

Path C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Size 2.8MB
SHA256 2eb45ce19f9af4c16e7e1ebb2d4ee817fb9aba2ba81847f145ff242b77cb5998
MD5 55ecd1267e9e7a0edb77f24f81b27616
SHA1 d5f1b2a553fd2cb36c8e5361ea865c5049f39069
SHA512 38766bf602862ede227886cd4b74c3955622bf5d815e63c6d4bbc2d730b15f63b373d0ff9bc9eb585d44cfcf0fb907acb9685bc001dfa4b0ee9e3d3e87f78802
SSDEEP 3072:s1Ul/AE5t6YQS1UrxwxzwroK2ktmgLobCb9F1XWqCjDaGTiU+BDIWV4/5nCfLfEW:sN8q6Fw4roxN/qSIQhUE
MD5 SHA1 SHA512 SSDEEP

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memory/2376-84-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-95-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-97-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-96-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-94-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-93-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-77-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-78-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-80-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-82-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-81-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-85-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-92-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-83-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-79-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-86-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-87-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-88-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-89-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-90-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2376-91-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/4868-4-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/4868-73-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/4868-2-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/4868-3-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/4868-6-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/4868-5-0x0000000000400000-0x00000000004B2000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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