darkcomet | 77d996c69a16c1be2b9ce2c80f10b89c3177dcdedde4f807898049c9af1fe372

Analysis

max time kernel
149s
max time network
119s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
28-06-2024 00:39

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General

Target

1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Size

646KB
MD5

1826a3c3cbaf8804560951543a1cf444
SHA1

54d252204e522b347e7ae12fde66ee6049c3d18a
SHA256

77d996c69a16c1be2b9ce2c80f10b89c3177dcdedde4f807898049c9af1fe372
SHA512

c79e510da682cee76a4d3f4509da73314a5752dc34b724de7da5aeb94208ccd3e29940f0989d34eddb28bcc4bfad771d9fca15f94eb496e736314faeae9b5491
SSDEEP

12288:g8UaT9XY2siA0bMG09xD7I3Gg8ecgVvfBoCDBOQQYbVXpuy1f/gORix2:ZUKoN0bUxgGa/pfBHDb+y1HgZA

Score

10^/10

darkcomet persistence rat trojan

Malware Config

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:

1826a3c3cbaf8804560951543a1cf444_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\\Documents\\MSDCSC\\msdcsc.exe"	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2856 msdcsc.exe
Loads dropped DLL 2 IoCs

Processes:

1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe

pid process

2080 1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
2080 1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe

pid	process
2856	msdcsc.exe

pid	process
2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	1826a3c3cbaf8804560951543a1cf444_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:

1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeSecurityPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeBackupPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeRestorePrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeShutdownPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeDebugPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeUndockPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: 33	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: 34	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: 35	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2856	msdcsc.exe
Token: SeSecurityPrivilege	2856	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2856	msdcsc.exe
Token: SeLoadDriverPrivilege	2856	msdcsc.exe
Token: SeSystemProfilePrivilege	2856	msdcsc.exe
Token: SeSystemtimePrivilege	2856	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2856	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2856	msdcsc.exe
Token: SeCreatePagefilePrivilege	2856	msdcsc.exe
Token: SeBackupPrivilege	2856	msdcsc.exe
Token: SeRestorePrivilege	2856	msdcsc.exe
Token: SeShutdownPrivilege	2856	msdcsc.exe
Token: SeDebugPrivilege	2856	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2856	msdcsc.exe
Token: SeChangeNotifyPrivilege	2856	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2856	msdcsc.exe
Token: SeUndockPrivilege	2856	msdcsc.exe
Token: SeManageVolumePrivilege	2856	msdcsc.exe
Token: SeImpersonatePrivilege	2856	msdcsc.exe
Token: SeCreateGlobalPrivilege	2856	msdcsc.exe
Token: 33	2856	msdcsc.exe
Token: 34	2856	msdcsc.exe
Token: 35	2856	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

2856 msdcsc.exe

pid	process
2856	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe

description	pid	process	target process
PID 2080 wrote to memory of 2856	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe	msdcsc.exe
PID 2080 wrote to memory of 2856	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe	msdcsc.exe
PID 2080 wrote to memory of 2856	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe	msdcsc.exe
PID 2080 wrote to memory of 2856	2080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1826a3c3cbaf8804560951543a1cf444_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:2080

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2856

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
646KB

MD5
1826a3c3cbaf8804560951543a1cf444

SHA1
54d252204e522b347e7ae12fde66ee6049c3d18a

SHA256
77d996c69a16c1be2b9ce2c80f10b89c3177dcdedde4f807898049c9af1fe372

SHA512
c79e510da682cee76a4d3f4509da73314a5752dc34b724de7da5aeb94208ccd3e29940f0989d34eddb28bcc4bfad771d9fca15f94eb496e736314faeae9b5491

Download Submit
memory/2080-0-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2080-11-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-17-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-19-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-14-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-15-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-16-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-12-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2856-18-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-13-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-20-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-21-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-22-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-23-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-24-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-25-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2856-26-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download