darkcomet | d333cfd6e0a0f19f0eab19fd6817b59158aa7587430dc573348bca440594b54b

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
2532	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe

pid	Process
1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.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-1-5-21-1298544033-3225604241-2703760938-1000\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 46 IoCs

Processes:

20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeSecurityPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeBackupPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeRestorePrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeShutdownPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeDebugPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeUndockPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: 33	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: 34	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: 35	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2532	msdcsc.exe
Token: SeSecurityPrivilege	2532	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2532	msdcsc.exe
Token: SeLoadDriverPrivilege	2532	msdcsc.exe
Token: SeSystemProfilePrivilege	2532	msdcsc.exe
Token: SeSystemtimePrivilege	2532	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2532	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2532	msdcsc.exe
Token: SeCreatePagefilePrivilege	2532	msdcsc.exe
Token: SeBackupPrivilege	2532	msdcsc.exe
Token: SeRestorePrivilege	2532	msdcsc.exe
Token: SeShutdownPrivilege	2532	msdcsc.exe
Token: SeDebugPrivilege	2532	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2532	msdcsc.exe
Token: SeChangeNotifyPrivilege	2532	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2532	msdcsc.exe
Token: SeUndockPrivilege	2532	msdcsc.exe
Token: SeManageVolumePrivilege	2532	msdcsc.exe
Token: SeImpersonatePrivilege	2532	msdcsc.exe
Token: SeCreateGlobalPrivilege	2532	msdcsc.exe
Token: 33	2532	msdcsc.exe
Token: 34	2532	msdcsc.exe
Token: 35	2532	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
2532	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1812 wrote to memory of 2532	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe	28
PID 1812 wrote to memory of 2532	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe	28
PID 1812 wrote to memory of 2532	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe	28
PID 1812 wrote to memory of 2532	1812	20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\20b9068c48af8ad25b169fc112d39316_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1812
- 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:2532

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
756KB

MD5
20b9068c48af8ad25b169fc112d39316

SHA1
64173d11665bc7c35e483b92576cc749e438eb9e

SHA256
d333cfd6e0a0f19f0eab19fd6817b59158aa7587430dc573348bca440594b54b

SHA512
31534c50d4ff100838a35e7c872ababa71f6c11f65a023e1894a756c3f1c5725fdf431854f70c39938a7a4dbc8ceb5d33fe6f45a9301034e58dad0c964dc1758

Download Submit
memory/1812-13-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1812-0-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2532-18-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2532-20-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2532-15-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2532-16-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2532-17-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2532-11-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2532-19-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2532-14-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2532-21-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2532-22-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2532-23-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2532-24-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2532-25-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2532-26-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2532-27-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2532-28-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download