darkcomet | d333cfd6e0a0f19f0eab19fd6817b59158aa7587430dc573348bca440594b54b

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
07-05-2024 13:44

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General

Target

20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Size

756KB
MD5

20b9068c48af8ad25b169fc112d39316
SHA1

64173d11665bc7c35e483b92576cc749e438eb9e
SHA256

d333cfd6e0a0f19f0eab19fd6817b59158aa7587430dc573348bca440594b54b
SHA512

31534c50d4ff100838a35e7c872ababa71f6c11f65a023e1894a756c3f1c5725fdf431854f70c39938a7a4dbc8ceb5d33fe6f45a9301034e58dad0c964dc1758
SSDEEP

12288:19HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h/:/Z1xuVVjfFoynPaVBUR8f+kN10EBp

Score

10^/10

darkcomet all persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

All

leonix.ddns.net:1604

Mutex

DC_MUTEX-WVWK60V

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
T16ePMhXtwJi
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

Processes:

20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	20b9068c48af8ad25b169fc112d39316_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

Processes:

20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
1212	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeSecurityPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeBackupPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeRestorePrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeShutdownPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeDebugPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeUndockPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: 33	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: 34	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: 35	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: 36	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1212	msdcsc.exe
Token: SeSecurityPrivilege	1212	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1212	msdcsc.exe
Token: SeLoadDriverPrivilege	1212	msdcsc.exe
Token: SeSystemProfilePrivilege	1212	msdcsc.exe
Token: SeSystemtimePrivilege	1212	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1212	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1212	msdcsc.exe
Token: SeCreatePagefilePrivilege	1212	msdcsc.exe
Token: SeBackupPrivilege	1212	msdcsc.exe
Token: SeRestorePrivilege	1212	msdcsc.exe
Token: SeShutdownPrivilege	1212	msdcsc.exe
Token: SeDebugPrivilege	1212	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1212	msdcsc.exe
Token: SeChangeNotifyPrivilege	1212	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1212	msdcsc.exe
Token: SeUndockPrivilege	1212	msdcsc.exe
Token: SeManageVolumePrivilege	1212	msdcsc.exe
Token: SeImpersonatePrivilege	1212	msdcsc.exe
Token: SeCreateGlobalPrivilege	1212	msdcsc.exe
Token: 33	1212	msdcsc.exe
Token: 34	1212	msdcsc.exe
Token: 35	1212	msdcsc.exe
Token: 36	1212	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
1212	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2840 wrote to memory of 1212	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe	83
PID 2840 wrote to memory of 1212	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe	83
PID 2840 wrote to memory of 1212	2840	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1212

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

Filesize
756KB

MD5
20b9068c48af8ad25b169fc112d39316

SHA1
64173d11665bc7c35e483b92576cc749e438eb9e

SHA256
d333cfd6e0a0f19f0eab19fd6817b59158aa7587430dc573348bca440594b54b

SHA512
31534c50d4ff100838a35e7c872ababa71f6c11f65a023e1894a756c3f1c5725fdf431854f70c39938a7a4dbc8ceb5d33fe6f45a9301034e58dad0c964dc1758

Download Submit
memory/1212-19-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1212-16-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1212-20-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1212-15-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1212-21-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1212-17-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1212-18-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1212-22-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1212-28-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1212-13-0x0000000002190000-0x0000000002191000-memory.dmp

Filesize
4KB

Download
memory/1212-27-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1212-23-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1212-24-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1212-25-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1212-26-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2840-0-0x0000000002290000-0x0000000002291000-memory.dmp

Filesize
4KB

Download
memory/2840-14-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download