darkcomet | 859a6a9bea0a559a6e73cb3e08964ba10f78b1a9562a6279de561590ff87df19

Analysis

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

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
13/07/2024, 02:58

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General

Target
3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe
Size 726KB
Sample240713-dgdstsvfpd
SHA256 859a6a9bea0a559a6e73cb3e08964ba10f78b1a9562a6279de561590ff87df19
MD5 3fec6f1271063ed48d11a35685d2ecb4
SHA1 d646cc5af29381497202beb3a34fbbaa84754e0d
SHA512 ae2398ce765f4d11005ff2936198ce803cfe6cff98e7bac785a03031fe4f9ce8ee64228c4aed05d8ac7b3401c6d2bff62aa7a31c627dddeaef3d6c84ac98cc86
SSDEEP 12288:9GihnAETzS1uVM0aN/GwJYefKc/k7QiZTKwsTyU9rLnDnftaQKQcQkoVL+r3uG/:9GiyETzyuVMlukCc/B8WwwyU9rLx8po4
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

qwerrewq.no-ip.biz:82

Mutex

DC_MUTEX-C03NTUB

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
p8rW7Kq9xcaq
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:\\MSDCSC\\msdcsc.exe"	tmp.exe

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	msdcsc.exe

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.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-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation	tmp.exe

Executes dropped EXE 2 IoCs

pid	Process
884	tmp.exe
2012	msdcsc.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	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-1-5-21-2636447293-1148739154-93880854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe"	tmp.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1864 set thread context of 2644	1864	3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe	83

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\	tmp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2012	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	884	tmp.exe
Token: SeSecurityPrivilege	884	tmp.exe
Token: SeTakeOwnershipPrivilege	884	tmp.exe
Token: SeLoadDriverPrivilege	884	tmp.exe
Token: SeSystemProfilePrivilege	884	tmp.exe
Token: SeSystemtimePrivilege	884	tmp.exe
Token: SeProfSingleProcessPrivilege	884	tmp.exe
Token: SeIncBasePriorityPrivilege	884	tmp.exe
Token: SeCreatePagefilePrivilege	884	tmp.exe
Token: SeBackupPrivilege	884	tmp.exe
Token: SeRestorePrivilege	884	tmp.exe
Token: SeShutdownPrivilege	884	tmp.exe
Token: SeDebugPrivilege	884	tmp.exe
Token: SeSystemEnvironmentPrivilege	884	tmp.exe
Token: SeChangeNotifyPrivilege	884	tmp.exe
Token: SeRemoteShutdownPrivilege	884	tmp.exe
Token: SeUndockPrivilege	884	tmp.exe
Token: SeManageVolumePrivilege	884	tmp.exe
Token: SeImpersonatePrivilege	884	tmp.exe
Token: SeCreateGlobalPrivilege	884	tmp.exe
Token: 33	884	tmp.exe
Token: 34	884	tmp.exe
Token: 35	884	tmp.exe
Token: 36	884	tmp.exe
Token: SeIncreaseQuotaPrivilege	2012	msdcsc.exe
Token: SeSecurityPrivilege	2012	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2012	msdcsc.exe
Token: SeLoadDriverPrivilege	2012	msdcsc.exe
Token: SeSystemProfilePrivilege	2012	msdcsc.exe
Token: SeSystemtimePrivilege	2012	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2012	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2012	msdcsc.exe
Token: SeCreatePagefilePrivilege	2012	msdcsc.exe
Token: SeBackupPrivilege	2012	msdcsc.exe
Token: SeRestorePrivilege	2012	msdcsc.exe
Token: SeShutdownPrivilege	2012	msdcsc.exe
Token: SeDebugPrivilege	2012	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2012	msdcsc.exe
Token: SeChangeNotifyPrivilege	2012	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2012	msdcsc.exe
Token: SeUndockPrivilege	2012	msdcsc.exe
Token: SeManageVolumePrivilege	2012	msdcsc.exe
Token: SeImpersonatePrivilege	2012	msdcsc.exe
Token: SeCreateGlobalPrivilege	2012	msdcsc.exe
Token: 33	2012	msdcsc.exe
Token: 34	2012	msdcsc.exe
Token: 35	2012	msdcsc.exe
Token: 36	2012	msdcsc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2644	3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe
2012	msdcsc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 2644	1864	3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe	83
PID 1864 wrote to memory of 2644	1864	3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe	83
PID 1864 wrote to memory of 2644	1864	3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe	83
PID 1864 wrote to memory of 2644	1864	3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe	83
PID 1864 wrote to memory of 2644	1864	3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe	83
PID 1864 wrote to memory of 2644	1864	3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe	83
PID 1864 wrote to memory of 2644	1864	3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe	83
PID 1864 wrote to memory of 2644	1864	3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe	83
PID 2644 wrote to memory of 884	2644	3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe	87
PID 2644 wrote to memory of 884	2644	3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe	87
PID 2644 wrote to memory of 884	2644	3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe	87
PID 884 wrote to memory of 2012	884	tmp.exe	88
PID 884 wrote to memory of 2012	884	tmp.exe	88
PID 884 wrote to memory of 2012	884	tmp.exe	88
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89
PID 2012 wrote to memory of 680	2012	msdcsc.exe	89

C:\Users\Admin\AppData\Local\Temp\3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Users\Admin\AppData\Local\Temp\3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\3fec6f1271063ed48d11a35685d2ecb4_JaffaCakes118.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2644
- - C:\Users\Admin\AppData\Local\Temp\tmp.exe
    C:\Users\Admin\AppData\Local\Temp\tmp.exe
    3⤵
    - Modifies WinLogon for persistence
    - Checks computer location settings
    - Executes dropped EXE
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:884
  - - C:\MSDCSC\msdcsc.exe
      "C:\MSDCSC\msdcsc.exe"
      4⤵
      Modifies security service
      Windows security bypass
      Executes dropped EXE
      Windows security modification
      Adds Run key to start application
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2012
    - - C:\Windows\SysWOW64\notepad.exe
        
        notepad
        5⤵
        
        PID:680

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

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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tmp.exe

Path C:\Users\Admin\AppData\Local\Temp\tmp.exe
Size 658KB
SHA256 8a2165e8099669fbdeaf555829308174a267b56e04ee6fe769660934ba4fc60e
MD5 90198a790af9a9662a147e47f4842433
SHA1 1f5ddc9aece755255265610f9f412f4afda63699
SHA512 7f03f7a9057f66198903b0871d9aea9708f8df37c860b10bc062a4b35c7526c9cde45a787967f175500033d7cfad3baee4b449c4c6a2630a9fd8fbded907346f
SSDEEP 12288:f9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hZ:JZ1xuVVjfFoynPaVBUR8f+kN10EBf
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/680-80-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/884-15-0x00000000022B0000-0x00000000022B1000-memory.dmp

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memory/884-81-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/1864-0-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/1864-5-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/2012-82-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2012-89-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2012-95-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2012-79-0x0000000002180000-0x0000000002181000-memory.dmp

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memory/2012-94-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2012-93-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2012-92-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2012-83-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2012-84-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2012-85-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2012-86-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2012-87-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2012-88-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2012-91-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2012-90-0x0000000000400000-0x00000000004B2000-memory.dmp

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memory/2644-16-0x0000000000410000-0x00000000004D9000-memory.dmp

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memory/2644-3-0x0000000000400000-0x0000000000408000-memory.dmp

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memory/2644-1-0x0000000000400000-0x0000000000408000-memory.dmp

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memory/2644-6-0x0000000000400000-0x0000000000408000-memory.dmp

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memory/2644-17-0x0000000000400000-0x0000000000408000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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