darkcomet | f91d8706ef948aa8066049b4a6f59581147c6f1cbec35c61729e095e6624c17b

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
14/07/2024, 02:00

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Size 744KB
Sample240714-ce1ddavdpc
SHA256 f91d8706ef948aa8066049b4a6f59581147c6f1cbec35c61729e095e6624c17b
MD5 43d8195aafe8b879cb99202dceff49c6
SHA1 184becc2d85b1458047386362c4f6e1450630ccc
SHA512 34f89b17811c560ce1c90dd69b71112678819b894807c93468c80e3e9448f7548afbae73a7cb93fbbec6e4692399eb61d454ae88b69edb5004e85354e10aa7e6
SSDEEP 12288:l8UaT9XY2siA0bMG09xD7I3Gg8ecgVvfBoCDBOQQYbVXpuy1f/gORixFnk:2UKoN0bUxgGa/pfBHDb+y1HgZ/k
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet evasion 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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\MSDCSC\\msdcsc.exe"	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
4784	attrib.exe
1604	attrib.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\Control Panel\International\Geo\Nation	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
264	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\MSDCSC\\msdcsc.exe"	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\MSDCSC\msdcsc.exe	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
File opened for modification	C:\Windows\MSDCSC\msdcsc.exe	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
File opened for modification	C:\Windows\MSDCSC\	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.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

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeSecurityPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeBackupPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeRestorePrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeShutdownPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeDebugPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeUndockPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: 33	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: 34	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: 35	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: 36	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	264	msdcsc.exe
Token: SeSecurityPrivilege	264	msdcsc.exe
Token: SeTakeOwnershipPrivilege	264	msdcsc.exe
Token: SeLoadDriverPrivilege	264	msdcsc.exe
Token: SeSystemProfilePrivilege	264	msdcsc.exe
Token: SeSystemtimePrivilege	264	msdcsc.exe
Token: SeProfSingleProcessPrivilege	264	msdcsc.exe
Token: SeIncBasePriorityPrivilege	264	msdcsc.exe
Token: SeCreatePagefilePrivilege	264	msdcsc.exe
Token: SeBackupPrivilege	264	msdcsc.exe
Token: SeRestorePrivilege	264	msdcsc.exe
Token: SeShutdownPrivilege	264	msdcsc.exe
Token: SeDebugPrivilege	264	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	264	msdcsc.exe
Token: SeChangeNotifyPrivilege	264	msdcsc.exe
Token: SeRemoteShutdownPrivilege	264	msdcsc.exe
Token: SeUndockPrivilege	264	msdcsc.exe
Token: SeManageVolumePrivilege	264	msdcsc.exe
Token: SeImpersonatePrivilege	264	msdcsc.exe
Token: SeCreateGlobalPrivilege	264	msdcsc.exe
Token: 33	264	msdcsc.exe
Token: 34	264	msdcsc.exe
Token: 35	264	msdcsc.exe
Token: 36	264	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
264	msdcsc.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 3188	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe	84
PID 2140 wrote to memory of 3188	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe	84
PID 2140 wrote to memory of 3188	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe	84
PID 2140 wrote to memory of 5020	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe	86
PID 2140 wrote to memory of 5020	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe	86
PID 2140 wrote to memory of 5020	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe	86
PID 3188 wrote to memory of 4784	3188	cmd.exe	88
PID 3188 wrote to memory of 4784	3188	cmd.exe	88
PID 3188 wrote to memory of 4784	3188	cmd.exe	88
PID 5020 wrote to memory of 1604	5020	cmd.exe	89
PID 5020 wrote to memory of 1604	5020	cmd.exe	89
PID 5020 wrote to memory of 1604	5020	cmd.exe	89
PID 2140 wrote to memory of 264	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe	92
PID 2140 wrote to memory of 264	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe	92
PID 2140 wrote to memory of 264	2140	43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe	92
PID 264 wrote to memory of 3536	264	msdcsc.exe	93
PID 264 wrote to memory of 3536	264	msdcsc.exe	93
PID 264 wrote to memory of 3536	264	msdcsc.exe	93
PID 264 wrote to memory of 2284	264	msdcsc.exe	94
PID 264 wrote to memory of 2284	264	msdcsc.exe	94

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4784	attrib.exe
1604	attrib.exe

C:\Users\Admin\AppData\Local\Temp\43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3188
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\43d8195aafe8b879cb99202dceff49c6_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:4784
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5020
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:1604
- C:\Windows\MSDCSC\msdcsc.exe
  "C:\Windows\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:264
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:3536
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:2284

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

msdcsc.exe

Path C:\Windows\MSDCSC\msdcsc.exe
Size 744KB
SHA256 f91d8706ef948aa8066049b4a6f59581147c6f1cbec35c61729e095e6624c17b
MD5 43d8195aafe8b879cb99202dceff49c6
SHA1 184becc2d85b1458047386362c4f6e1450630ccc
SHA512 34f89b17811c560ce1c90dd69b71112678819b894807c93468c80e3e9448f7548afbae73a7cb93fbbec6e4692399eb61d454ae88b69edb5004e85354e10aa7e6
SSDEEP 12288:l8UaT9XY2siA0bMG09xD7I3Gg8ecgVvfBoCDBOQQYbVXpuy1f/gORixFnk:2UKoN0bUxgGa/pfBHDb+y1HgZ/k
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/264-68-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/264-70-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/264-63-0x0000000002180000-0x0000000002181000-memory.dmp

Download

memory/264-64-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/264-65-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/264-66-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/264-67-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/264-77-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/264-76-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/264-71-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/264-69-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/264-72-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/264-73-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/264-74-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/264-75-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/2140-62-0x0000000000400000-0x00000000004C7000-memory.dmp

Download

memory/2140-0-0x0000000000670000-0x0000000000671000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads