darkcomet | 2969034b1ff9c108275be7ea6ac98161574f4c5af2ff44056792ab394a5771c1

Analysis

max time kernel
133s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
28/06/2024, 00:59

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General

Target
1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe
Size 1011KB
Sample240628-bb9bfavcmm
SHA256 2969034b1ff9c108275be7ea6ac98161574f4c5af2ff44056792ab394a5771c1
MD5 1834f6834978a185df442ff1c6efec71
SHA1 3b55fae8eee6dfb172f1d8658e33a860ea1fd1c2
SHA512 c5abdcd310e92c6b4687ffb556fba68a34d25eb0f044790b30183376f7fecaa64968a38c12e69a9e893c70c45d82aec73f72dcdb84b08e41e052a2f9864f635f
SSDEEP 24576:jvOTggIRfmQX3zRYC6FVZPv+FWe4Ys/E:zjYlDZ3+UT/E
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet rumah evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

rumah

192.168.1.3:10000

Mutex

DC_MUTEX-10Q9ZPU

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
oFKnv1gNw9GF
install
true
offline_keylogger
true
persistence
false
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"	svchost.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
4676	attrib.exe
4016	attrib.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-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation	svchost.exe

Executes dropped EXE 2 IoCs

pid	Process
2752	svchost.exe
2740	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 644 set thread context of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2752	svchost.exe
Token: SeSecurityPrivilege	2752	svchost.exe
Token: SeTakeOwnershipPrivilege	2752	svchost.exe
Token: SeLoadDriverPrivilege	2752	svchost.exe
Token: SeSystemProfilePrivilege	2752	svchost.exe
Token: SeSystemtimePrivilege	2752	svchost.exe
Token: SeProfSingleProcessPrivilege	2752	svchost.exe
Token: SeIncBasePriorityPrivilege	2752	svchost.exe
Token: SeCreatePagefilePrivilege	2752	svchost.exe
Token: SeBackupPrivilege	2752	svchost.exe
Token: SeRestorePrivilege	2752	svchost.exe
Token: SeShutdownPrivilege	2752	svchost.exe
Token: SeDebugPrivilege	2752	svchost.exe
Token: SeSystemEnvironmentPrivilege	2752	svchost.exe
Token: SeChangeNotifyPrivilege	2752	svchost.exe
Token: SeRemoteShutdownPrivilege	2752	svchost.exe
Token: SeUndockPrivilege	2752	svchost.exe
Token: SeManageVolumePrivilege	2752	svchost.exe
Token: SeImpersonatePrivilege	2752	svchost.exe
Token: SeCreateGlobalPrivilege	2752	svchost.exe
Token: 33	2752	svchost.exe
Token: 34	2752	svchost.exe
Token: 35	2752	svchost.exe
Token: 36	2752	svchost.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 644 wrote to memory of 2752	644	1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe	83
PID 2752 wrote to memory of 3588	2752	svchost.exe	84
PID 2752 wrote to memory of 3588	2752	svchost.exe	84
PID 2752 wrote to memory of 3588	2752	svchost.exe	84
PID 2752 wrote to memory of 2620	2752	svchost.exe	86
PID 2752 wrote to memory of 2620	2752	svchost.exe	86
PID 2752 wrote to memory of 2620	2752	svchost.exe	86
PID 2752 wrote to memory of 2740	2752	svchost.exe	88
PID 2752 wrote to memory of 2740	2752	svchost.exe	88
PID 2752 wrote to memory of 2740	2752	svchost.exe	88
PID 3588 wrote to memory of 4676	3588	cmd.exe	90
PID 3588 wrote to memory of 4676	3588	cmd.exe	90
PID 3588 wrote to memory of 4676	3588	cmd.exe	90
PID 2620 wrote to memory of 4016	2620	cmd.exe	91
PID 2620 wrote to memory of 4016	2620	cmd.exe	91
PID 2620 wrote to memory of 4016	2620	cmd.exe	91

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4676	attrib.exe
4016	attrib.exe

C:\Users\Admin\AppData\Local\Temp\1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1834f6834978a185df442ff1c6efec71_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:644
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\svchost.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2752
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\svchost.exe" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3588
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\svchost.exe" +s +h
      4⤵
      Sets file to hidden
      Views/modifies file attributes
      PID:4676
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2620
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      Views/modifies file attributes
      PID:4016
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    PID:2740

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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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svchost.exe

Path C:\Users\Admin\AppData\Local\Temp\svchost.exe
Size 1.1MB
SHA256 b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0
MD5 d881de17aa8f2e2c08cbb7b265f928f9
SHA1 08936aebc87decf0af6e8eada191062b5e65ac2a
SHA512 5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34
SSDEEP 24576:jp2silPBMIXGWClfuRcUGIJYK15Qs/QZM:jp2sMO7VzUTJH15QFZM
MD5 SHA1 SHA512 SSDEEP

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memory/644-0-0x0000000075202000-0x0000000075203000-memory.dmp

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memory/644-1-0x0000000075200000-0x00000000757B1000-memory.dmp

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memory/644-2-0x0000000075200000-0x00000000757B1000-memory.dmp

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memory/644-17-0x0000000075200000-0x00000000757B1000-memory.dmp

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memory/2752-5-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2752-8-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2752-10-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2752-12-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2752-13-0x00000000025C0000-0x00000000025C1000-memory.dmp

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memory/2752-28-0x0000000000400000-0x00000000004B2000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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