darkcomet | 845d9c26c2473529342dd5f2c40997e76f895a08cd93acb8190faf5e2fe074ef

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
30-04-2024 03:26

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General

Target

08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Size

756KB
MD5

08eaff5084b9697ce7abe813eb313262
SHA1

e4a650041c5d808c37815389ade16b2503de969a
SHA256

845d9c26c2473529342dd5f2c40997e76f895a08cd93acb8190faf5e2fe074ef
SHA512

437dbb1b0b473609bbf152d7e23e9bab6744ccd6b1b779d8fd48fdda6edd29188b54642311f92207c618315df07b7ba07d70304ce6bdaa8433dc6fc5a885fa44
SSDEEP

12288:p9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9EkNC/:zZ1xuVVjfFoynPaVBUR8f+kN10Ed

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

wearedotexe.no-ip.biz:200

Mutex

DC_MUTEX-R80F205

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
2bJFRYvQllRE
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

Processes:

08eaff5084b9697ce7abe813eb313262_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"	08eaff5084b9697ce7abe813eb313262_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:

08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
1368	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exemsdcsc.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeSecurityPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeBackupPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeRestorePrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeShutdownPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeDebugPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeUndockPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: 33	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: 34	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: 35	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: 36	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1368	msdcsc.exe
Token: SeSecurityPrivilege	1368	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1368	msdcsc.exe
Token: SeLoadDriverPrivilege	1368	msdcsc.exe
Token: SeSystemProfilePrivilege	1368	msdcsc.exe
Token: SeSystemtimePrivilege	1368	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1368	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1368	msdcsc.exe
Token: SeCreatePagefilePrivilege	1368	msdcsc.exe
Token: SeBackupPrivilege	1368	msdcsc.exe
Token: SeRestorePrivilege	1368	msdcsc.exe
Token: SeShutdownPrivilege	1368	msdcsc.exe
Token: SeDebugPrivilege	1368	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1368	msdcsc.exe
Token: SeChangeNotifyPrivilege	1368	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1368	msdcsc.exe
Token: SeUndockPrivilege	1368	msdcsc.exe
Token: SeManageVolumePrivilege	1368	msdcsc.exe
Token: SeImpersonatePrivilege	1368	msdcsc.exe
Token: SeCreateGlobalPrivilege	1368	msdcsc.exe
Token: 33	1368	msdcsc.exe
Token: 34	1368	msdcsc.exe
Token: 35	1368	msdcsc.exe
Token: 36	1368	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
1368	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe

description	pid	Process	procid_target
PID 3876 wrote to memory of 1368	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe	82
PID 3876 wrote to memory of 1368	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe	82
PID 3876 wrote to memory of 1368	3876	08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe	82

C:\Users\Admin\AppData\Local\Temp\08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\08eaff5084b9697ce7abe813eb313262_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3876
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1368

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

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
756KB

MD5
08eaff5084b9697ce7abe813eb313262

SHA1
e4a650041c5d808c37815389ade16b2503de969a

SHA256
845d9c26c2473529342dd5f2c40997e76f895a08cd93acb8190faf5e2fe074ef

SHA512
437dbb1b0b473609bbf152d7e23e9bab6744ccd6b1b779d8fd48fdda6edd29188b54642311f92207c618315df07b7ba07d70304ce6bdaa8433dc6fc5a885fa44

Download Submit
memory/1368-67-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1368-64-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1368-68-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1368-63-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1368-69-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1368-65-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1368-66-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1368-70-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1368-76-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1368-61-0x00000000009F0000-0x00000000009F1000-memory.dmp

Filesize
4KB

Download
memory/1368-75-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1368-71-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1368-72-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1368-73-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1368-74-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3876-0-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/3876-62-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download