darkcomet | d8d95587173077265b251ef2ad7d0682a229ad227b5878d3d9dd9a638eef9841

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14-12-2024 19:06

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Size

758KB
MD5

f03f4eec551892fd56cd50faefe098c3
SHA1

661a0acbd9d94e8a915e59e922af36022a3d8898
SHA256

d8d95587173077265b251ef2ad7d0682a229ad227b5878d3d9dd9a638eef9841
SHA512

7b6acfc53f86b281cb2e841c1ec3f851c2b4e7b30358ec29740076d1b888bb531e35ad6465be026cee4a2fac38632609f62b60afc323f355e2ab73ce47db9c59
SSDEEP

12288:yXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452Uy:8nAw2WWeFcfbP9VPSPMTSPL/rWvzq4Ji

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

andrey222.hopto.org:1604

Mutex

DC_MUTEX-TUY6P8V

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
YWgrDFvxt48B
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
Darkcomet family
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:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	f03f4eec551892fd56cd50faefe098c3_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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2800	msdcsc.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2800 set thread context of 1996	2800	msdcsc.exe	85

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeSecurityPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeBackupPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeRestorePrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeShutdownPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeDebugPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeUndockPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: 33	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: 34	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: 35	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: 36	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2800	msdcsc.exe
Token: SeSecurityPrivilege	2800	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2800	msdcsc.exe
Token: SeLoadDriverPrivilege	2800	msdcsc.exe
Token: SeSystemProfilePrivilege	2800	msdcsc.exe
Token: SeSystemtimePrivilege	2800	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2800	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2800	msdcsc.exe
Token: SeCreatePagefilePrivilege	2800	msdcsc.exe
Token: SeBackupPrivilege	2800	msdcsc.exe
Token: SeRestorePrivilege	2800	msdcsc.exe
Token: SeShutdownPrivilege	2800	msdcsc.exe
Token: SeDebugPrivilege	2800	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2800	msdcsc.exe
Token: SeChangeNotifyPrivilege	2800	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2800	msdcsc.exe
Token: SeUndockPrivilege	2800	msdcsc.exe
Token: SeManageVolumePrivilege	2800	msdcsc.exe
Token: SeImpersonatePrivilege	2800	msdcsc.exe
Token: SeCreateGlobalPrivilege	2800	msdcsc.exe
Token: 33	2800	msdcsc.exe
Token: 34	2800	msdcsc.exe
Token: 35	2800	msdcsc.exe
Token: 36	2800	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	1996	iexplore.exe
Token: SeSecurityPrivilege	1996	iexplore.exe
Token: SeTakeOwnershipPrivilege	1996	iexplore.exe
Token: SeLoadDriverPrivilege	1996	iexplore.exe
Token: SeSystemProfilePrivilege	1996	iexplore.exe
Token: SeSystemtimePrivilege	1996	iexplore.exe
Token: SeProfSingleProcessPrivilege	1996	iexplore.exe
Token: SeIncBasePriorityPrivilege	1996	iexplore.exe
Token: SeCreatePagefilePrivilege	1996	iexplore.exe
Token: SeBackupPrivilege	1996	iexplore.exe
Token: SeRestorePrivilege	1996	iexplore.exe
Token: SeShutdownPrivilege	1996	iexplore.exe
Token: SeDebugPrivilege	1996	iexplore.exe
Token: SeSystemEnvironmentPrivilege	1996	iexplore.exe
Token: SeChangeNotifyPrivilege	1996	iexplore.exe
Token: SeRemoteShutdownPrivilege	1996	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1996	iexplore.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4628 wrote to memory of 2800	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe	84
PID 4628 wrote to memory of 2800	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe	84
PID 4628 wrote to memory of 2800	4628	f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe	84
PID 2800 wrote to memory of 1996	2800	msdcsc.exe	85
PID 2800 wrote to memory of 1996	2800	msdcsc.exe	85
PID 2800 wrote to memory of 1996	2800	msdcsc.exe	85
PID 2800 wrote to memory of 1996	2800	msdcsc.exe	85
PID 2800 wrote to memory of 1996	2800	msdcsc.exe	85

C:\Users\Admin\AppData\Local\Temp\f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f03f4eec551892fd56cd50faefe098c3_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4628
- C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2800
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1996

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe

Filesize
758KB

MD5
f03f4eec551892fd56cd50faefe098c3

SHA1
661a0acbd9d94e8a915e59e922af36022a3d8898

SHA256
d8d95587173077265b251ef2ad7d0682a229ad227b5878d3d9dd9a638eef9841

SHA512
7b6acfc53f86b281cb2e841c1ec3f851c2b4e7b30358ec29740076d1b888bb531e35ad6465be026cee4a2fac38632609f62b60afc323f355e2ab73ce47db9c59

Download Submit
memory/1996-16-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/2800-14-0x00000000022E0000-0x00000000022E1000-memory.dmp

Filesize
4KB

Download
memory/2800-17-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/4628-0-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/4628-15-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads