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

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

3012 msdcsc.exe

pid	process
3012	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe

pid	process
2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.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-1-5-21-3627615824-4061627003-3019543961-1000\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 3012 set thread context of 2408 3012 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 3012 set thread context of 2408	3012	msdcsc.exe	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeSecurityPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeTakeOwnershipPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeLoadDriverPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeSystemProfilePrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeSystemtimePrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeProfSingleProcessPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeIncBasePriorityPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeCreatePagefilePrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeBackupPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeRestorePrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeShutdownPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeDebugPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeSystemEnvironmentPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeChangeNotifyPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeRemoteShutdownPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeUndockPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeManageVolumePrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeImpersonatePrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeCreateGlobalPrivilege	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: 33	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: 34	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: 35	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe
Token: SeIncreaseQuotaPrivilege	3012	msdcsc.exe
Token: SeSecurityPrivilege	3012	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3012	msdcsc.exe
Token: SeLoadDriverPrivilege	3012	msdcsc.exe
Token: SeSystemProfilePrivilege	3012	msdcsc.exe
Token: SeSystemtimePrivilege	3012	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3012	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3012	msdcsc.exe
Token: SeCreatePagefilePrivilege	3012	msdcsc.exe
Token: SeBackupPrivilege	3012	msdcsc.exe
Token: SeRestorePrivilege	3012	msdcsc.exe
Token: SeShutdownPrivilege	3012	msdcsc.exe
Token: SeDebugPrivilege	3012	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3012	msdcsc.exe
Token: SeChangeNotifyPrivilege	3012	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3012	msdcsc.exe
Token: SeUndockPrivilege	3012	msdcsc.exe
Token: SeManageVolumePrivilege	3012	msdcsc.exe
Token: SeImpersonatePrivilege	3012	msdcsc.exe
Token: SeCreateGlobalPrivilege	3012	msdcsc.exe
Token: 33	3012	msdcsc.exe
Token: 34	3012	msdcsc.exe
Token: 35	3012	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	2408	iexplore.exe
Token: SeSecurityPrivilege	2408	iexplore.exe
Token: SeTakeOwnershipPrivilege	2408	iexplore.exe
Token: SeLoadDriverPrivilege	2408	iexplore.exe
Token: SeSystemProfilePrivilege	2408	iexplore.exe
Token: SeSystemtimePrivilege	2408	iexplore.exe
Token: SeProfSingleProcessPrivilege	2408	iexplore.exe
Token: SeIncBasePriorityPrivilege	2408	iexplore.exe
Token: SeCreatePagefilePrivilege	2408	iexplore.exe
Token: SeBackupPrivilege	2408	iexplore.exe
Token: SeRestorePrivilege	2408	iexplore.exe
Token: SeShutdownPrivilege	2408	iexplore.exe
Token: SeDebugPrivilege	2408	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2408	iexplore.exe
Token: SeChangeNotifyPrivilege	2408	iexplore.exe
Token: SeRemoteShutdownPrivilege	2408	iexplore.exe
Token: SeUndockPrivilege	2408	iexplore.exe
Token: SeManageVolumePrivilege	2408	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

2408 iexplore.exe

pid	process
2408	iexplore.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exemsdcsc.exe

description	pid	process	target process
PID 2884 wrote to memory of 3012	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe	msdcsc.exe
PID 2884 wrote to memory of 3012	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe	msdcsc.exe
PID 2884 wrote to memory of 3012	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe	msdcsc.exe
PID 2884 wrote to memory of 3012	2884	9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2.exe	msdcsc.exe
PID 3012 wrote to memory of 2408	3012	msdcsc.exe	iexplore.exe
PID 3012 wrote to memory of 2408	3012	msdcsc.exe	iexplore.exe
PID 3012 wrote to memory of 2408	3012	msdcsc.exe	iexplore.exe
PID 3012 wrote to memory of 2408	3012	msdcsc.exe	iexplore.exe
PID 3012 wrote to memory of 2408	3012	msdcsc.exe	iexplore.exe
PID 3012 wrote to memory of 2408	3012	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
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2884

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:3012

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:2408

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

System Information Discovery

1

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
615KB

MD5
78f4cd07ab66a2affd22d0bc5a174afb

SHA1
37d7036575f82b2864bf4cdfcb2cd2e4d8185918

SHA256
75b588bcaaeab11ef9c9b3a827fd31f9a865ba091e8780a41224774fde9d9d87

SHA512
098682ccb7c48755b9e28f51aa1cb82beb5565939e1e995aef2436089dd38d71675667bebfb6f0931e99319bdfcdf3855c0c2f16a12f5f339d5ca00f7bd305e0

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

MD5
3f373a61431dcfda4b1a0db8b4321c71

SHA1
3a6f03440b869b725eb0aa98f6dadcd834394b72

SHA256
9d1822c44c81ef49b145377a9424156527ca2edf0007e57ceb4636d814ba4ec2

SHA512
9c5f32818f3f485d8a3e73f0bf1812c79186128516141da49029dac3858899e6d9acf526e74e15ffb895c1c692e27860ea98bb7eee5682129066a795ac55cd7e

Download Submit
memory/2408-14-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2884-0-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2884-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3012-12-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/3012-15-0x0000000000400000-0x00000000004B2000-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