darkcomet | 9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2

General

Target

9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Size

658KB
MD5

3f373a61431dcfda4b1a0db8b4321c71
SHA1

3a6f03440b869b725eb0aa98f6dadcd834394b72
SHA256

9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2
SHA512

9c5f32818f3f485d8a3e73f0bf1812c79186128516141da49029dac3858899e6d9acf526e74e15ffb895c1c692e27860ea98bb7eee5682129066a795ac55cd7e
SSDEEP

12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hp:qZ1xuVVjfFoynPaVBUR8f+kN10EBT

Score

10^/10

darkcomet guest17 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest17

C2

91.210.106.47:1604

Mutex

AP_Microsoft_ax

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
cocYNPSytj54
install
true
offline_keylogger
true
password
7Gtv4n9bg.
persistence
false
reg_key
Bonjour

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:

9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.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:

9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

3988 msdcsc.exe

pid	process
3988	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bonjour = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description pid process target process

PID 3988 set thread context of 3600 3988 msdcsc.exe iexplore.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 3988 set thread context of 3600	3988	msdcsc.exe	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeSecurityPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeTakeOwnershipPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeLoadDriverPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeSystemProfilePrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeSystemtimePrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeProfSingleProcessPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeIncBasePriorityPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeCreatePagefilePrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeBackupPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeRestorePrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeShutdownPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeDebugPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeSystemEnvironmentPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeChangeNotifyPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeRemoteShutdownPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeUndockPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeManageVolumePrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeImpersonatePrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeCreateGlobalPrivilege	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: 33	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: 34	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: 35	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: 36	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeIncreaseQuotaPrivilege	3988	msdcsc.exe
Token: SeSecurityPrivilege	3988	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3988	msdcsc.exe
Token: SeLoadDriverPrivilege	3988	msdcsc.exe
Token: SeSystemProfilePrivilege	3988	msdcsc.exe
Token: SeSystemtimePrivilege	3988	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3988	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3988	msdcsc.exe
Token: SeCreatePagefilePrivilege	3988	msdcsc.exe
Token: SeBackupPrivilege	3988	msdcsc.exe
Token: SeRestorePrivilege	3988	msdcsc.exe
Token: SeShutdownPrivilege	3988	msdcsc.exe
Token: SeDebugPrivilege	3988	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3988	msdcsc.exe
Token: SeChangeNotifyPrivilege	3988	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3988	msdcsc.exe
Token: SeUndockPrivilege	3988	msdcsc.exe
Token: SeManageVolumePrivilege	3988	msdcsc.exe
Token: SeImpersonatePrivilege	3988	msdcsc.exe
Token: SeCreateGlobalPrivilege	3988	msdcsc.exe
Token: 33	3988	msdcsc.exe
Token: 34	3988	msdcsc.exe
Token: 35	3988	msdcsc.exe
Token: 36	3988	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	3600	iexplore.exe
Token: SeSecurityPrivilege	3600	iexplore.exe
Token: SeTakeOwnershipPrivilege	3600	iexplore.exe
Token: SeLoadDriverPrivilege	3600	iexplore.exe
Token: SeSystemProfilePrivilege	3600	iexplore.exe
Token: SeSystemtimePrivilege	3600	iexplore.exe
Token: SeProfSingleProcessPrivilege	3600	iexplore.exe
Token: SeIncBasePriorityPrivilege	3600	iexplore.exe
Token: SeCreatePagefilePrivilege	3600	iexplore.exe
Token: SeBackupPrivilege	3600	iexplore.exe
Token: SeRestorePrivilege	3600	iexplore.exe
Token: SeShutdownPrivilege	3600	iexplore.exe
Token: SeDebugPrivilege	3600	iexplore.exe
Token: SeSystemEnvironmentPrivilege	3600	iexplore.exe
Token: SeChangeNotifyPrivilege	3600	iexplore.exe
Token: SeRemoteShutdownPrivilege	3600	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

3600 iexplore.exe

pid	process
3600	iexplore.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exemsdcsc.exe

description	pid	process	target process
PID 3080 wrote to memory of 3988	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe	msdcsc.exe
PID 3080 wrote to memory of 3988	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe	msdcsc.exe
PID 3080 wrote to memory of 3988	3080	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe	msdcsc.exe
PID 3988 wrote to memory of 3600	3988	msdcsc.exe	iexplore.exe
PID 3988 wrote to memory of 3600	3988	msdcsc.exe	iexplore.exe
PID 3988 wrote to memory of 3600	3988	msdcsc.exe	iexplore.exe
PID 3988 wrote to memory of 3600	3988	msdcsc.exe	iexplore.exe
PID 3988 wrote to memory of 3600	3988	msdcsc.exe	iexplore.exe

C:\Users\Admin\AppData\Local\Temp\9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
"C:\Users\Admin\AppData\Local\Temp\9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.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:3080

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3988

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3600

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
658KB

MD5
3f373a61431dcfda4b1a0db8b4321c71

SHA1
3a6f03440b869b725eb0aa98f6dadcd834394b72

SHA256
9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2

SHA512
9c5f32818f3f485d8a3e73f0bf1812c79186128516141da49029dac3858899e6d9acf526e74e15ffb895c1c692e27860ea98bb7eee5682129066a795ac55cd7e

Download Submit
memory/3080-0-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/3080-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3600-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3988-14-0x00000000023C0000-0x00000000023C1000-memory.dmp

Filesize
4KB

Download
memory/3988-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads