darkcomet | ef5cbaaa9328dc0a0e87f7f0a32c053a66fc3a81fa02a81ea98fd29f5d868017

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-10-2024 19:10

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General

Target

4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Size

658KB
MD5

4e89358ff1981442e21e143b816779d9
SHA1

729314daf2af598ac8d6b038c390f122fc497cea
SHA256

ef5cbaaa9328dc0a0e87f7f0a32c053a66fc3a81fa02a81ea98fd29f5d868017
SHA512

9a040eb219d7e4d94d39ab2d6cc762d7337e6470b1a82bf0d9e653c5cac88a3f88109b0d06f26c4d875528b305a8cd3abec1fc564c789100edff540900ead907
SSDEEP

12288:S9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hg:+Z1xuVVjfFoynPaVBUR8f+kN10EBK

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

soulhaunter.no-ip.biz:1604

Mutex

DC_MUTEX-UGYLFJH

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
78faR6tToLGk
install
true
offline_keylogger
true
persistence
false
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:

4e89358ff1981442e21e143b816779d9_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"	4e89358ff1981442e21e143b816779d9_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:

4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
4500	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe

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 2 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

Processes:

4e89358ff1981442e21e143b816779d9_JaffaCakes118.exemsdcsc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

4e89358ff1981442e21e143b816779d9_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeSecurityPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeBackupPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeRestorePrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeShutdownPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeDebugPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeUndockPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: 33	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: 34	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: 35	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: 36	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4500	msdcsc.exe
Token: SeSecurityPrivilege	4500	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4500	msdcsc.exe
Token: SeLoadDriverPrivilege	4500	msdcsc.exe
Token: SeSystemProfilePrivilege	4500	msdcsc.exe
Token: SeSystemtimePrivilege	4500	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4500	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4500	msdcsc.exe
Token: SeCreatePagefilePrivilege	4500	msdcsc.exe
Token: SeBackupPrivilege	4500	msdcsc.exe
Token: SeRestorePrivilege	4500	msdcsc.exe
Token: SeShutdownPrivilege	4500	msdcsc.exe
Token: SeDebugPrivilege	4500	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4500	msdcsc.exe
Token: SeChangeNotifyPrivilege	4500	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4500	msdcsc.exe
Token: SeUndockPrivilege	4500	msdcsc.exe
Token: SeManageVolumePrivilege	4500	msdcsc.exe
Token: SeImpersonatePrivilege	4500	msdcsc.exe
Token: SeCreateGlobalPrivilege	4500	msdcsc.exe
Token: 33	4500	msdcsc.exe
Token: 34	4500	msdcsc.exe
Token: 35	4500	msdcsc.exe
Token: 36	4500	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
4500	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4836 wrote to memory of 4500	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe	84
PID 4836 wrote to memory of 4500	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe	84
PID 4836 wrote to memory of 4500	4836	4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\4e89358ff1981442e21e143b816779d9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4e89358ff1981442e21e143b816779d9_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:4836
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4500

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

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Downloads

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

Filesize
658KB

MD5
4e89358ff1981442e21e143b816779d9

SHA1
729314daf2af598ac8d6b038c390f122fc497cea

SHA256
ef5cbaaa9328dc0a0e87f7f0a32c053a66fc3a81fa02a81ea98fd29f5d868017

SHA512
9a040eb219d7e4d94d39ab2d6cc762d7337e6470b1a82bf0d9e653c5cac88a3f88109b0d06f26c4d875528b305a8cd3abec1fc564c789100edff540900ead907

Download Submit
memory/4500-19-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4500-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4500-20-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4500-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4500-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4500-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4500-18-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4500-22-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4500-28-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4500-13-0x00000000006F0000-0x00000000006F1000-memory.dmp

Filesize
4KB

Download
memory/4500-27-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4500-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4500-24-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4500-25-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4500-26-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4836-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

Filesize
4KB

Download
memory/4836-14-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download