darkcomet | 77d996c69a16c1be2b9ce2c80f10b89c3177dcdedde4f807898049c9af1fe372

Analysis

max time kernel
150s
max time network
149s
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 00:39

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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

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:

1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation 1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

4824 msdcsc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe

pid	process
4824	msdcsc.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-1-5-21-3665033694-1447845302-680750983-1000\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 48 IoCs

Processes:

1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeSecurityPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeBackupPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeRestorePrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeShutdownPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeDebugPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeUndockPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: 33	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: 34	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: 35	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: 36	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4824	msdcsc.exe
Token: SeSecurityPrivilege	4824	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4824	msdcsc.exe
Token: SeLoadDriverPrivilege	4824	msdcsc.exe
Token: SeSystemProfilePrivilege	4824	msdcsc.exe
Token: SeSystemtimePrivilege	4824	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4824	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4824	msdcsc.exe
Token: SeCreatePagefilePrivilege	4824	msdcsc.exe
Token: SeBackupPrivilege	4824	msdcsc.exe
Token: SeRestorePrivilege	4824	msdcsc.exe
Token: SeShutdownPrivilege	4824	msdcsc.exe
Token: SeDebugPrivilege	4824	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4824	msdcsc.exe
Token: SeChangeNotifyPrivilege	4824	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4824	msdcsc.exe
Token: SeUndockPrivilege	4824	msdcsc.exe
Token: SeManageVolumePrivilege	4824	msdcsc.exe
Token: SeImpersonatePrivilege	4824	msdcsc.exe
Token: SeCreateGlobalPrivilege	4824	msdcsc.exe
Token: 33	4824	msdcsc.exe
Token: 34	4824	msdcsc.exe
Token: 35	4824	msdcsc.exe
Token: 36	4824	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

4824 msdcsc.exe

pid	process
4824	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe

description	pid	process	target process
PID 4080 wrote to memory of 4824	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe	msdcsc.exe
PID 4080 wrote to memory of 4824	4080	1826a3c3cbaf8804560951543a1cf444_JaffaCakes118.exe	msdcsc.exe
PID 4080 wrote to memory of 4824	4080	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
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4080

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:4824

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4132,i,3671441404766730751,12082497324212183132,262144 --variations-seed-version --mojo-platform-channel-handle=3492 /prefetch:8
1⤵
PID:4936

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

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

MD5
1826a3c3cbaf8804560951543a1cf444

SHA1
54d252204e522b347e7ae12fde66ee6049c3d18a

SHA256
77d996c69a16c1be2b9ce2c80f10b89c3177dcdedde4f807898049c9af1fe372

SHA512
c79e510da682cee76a4d3f4509da73314a5752dc34b724de7da5aeb94208ccd3e29940f0989d34eddb28bcc4bfad771d9fca15f94eb496e736314faeae9b5491

Download Submit
memory/4080-0-0x0000000002800000-0x0000000002801000-memory.dmp

Filesize
4KB

Download
memory/4080-13-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-19-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-21-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-16-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-17-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-18-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-14-0x00000000022B0000-0x00000000022B1000-memory.dmp

Filesize
4KB

Download
memory/4824-20-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-15-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-22-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-23-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-24-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-25-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-26-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-27-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4824-28-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download