darkcomet | 027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194

Analysis

max time kernel
188s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2022, 09:18

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General

Target

027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Size

727KB
MD5

58bd0cb3fb9afa61cdaa25bb0e8a6de0
SHA1

c70b6052af8f72d1261315b11d79d1f5ed644e1f
SHA256

027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194
SHA512

1949b34e1c6712dff92052964f7a990de17ba1e94bb67c5bc0268e9549d32b434a0b4080b4a4369434f6965c58b02cd68b8861ab889c390742f6218aed3314ee
SSDEEP

12288:h9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h75LF/Mw:bZ1xuVVjfFoynPaVBUR8f+kN10EB5VlV

Score

10^/10

darkcomet öüüüííé ìïíïé persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

ÖÜÜÜÍíÉ ÌÏíÏÉ

memateiraq.no-ip.biz:1604

Mutex

DC_MUTEX-HJG940C

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
7NAj1Mr7bd6y
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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

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\\Documents\\MSDCSC\\msdcsc.exe"	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe

Executes dropped EXE 1 IoCs

pid	Process
4800	msdcsc.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeSecurityPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeTakeOwnershipPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeLoadDriverPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeSystemProfilePrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeSystemtimePrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeProfSingleProcessPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeIncBasePriorityPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeCreatePagefilePrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeBackupPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeRestorePrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeShutdownPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeDebugPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeSystemEnvironmentPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeChangeNotifyPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeRemoteShutdownPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeUndockPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeManageVolumePrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeImpersonatePrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeCreateGlobalPrivilege	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: 33	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: 34	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: 35	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: 36	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
Token: SeIncreaseQuotaPrivilege	4800	msdcsc.exe
Token: SeSecurityPrivilege	4800	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4800	msdcsc.exe
Token: SeLoadDriverPrivilege	4800	msdcsc.exe
Token: SeSystemProfilePrivilege	4800	msdcsc.exe
Token: SeSystemtimePrivilege	4800	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4800	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4800	msdcsc.exe
Token: SeCreatePagefilePrivilege	4800	msdcsc.exe
Token: SeBackupPrivilege	4800	msdcsc.exe
Token: SeRestorePrivilege	4800	msdcsc.exe
Token: SeShutdownPrivilege	4800	msdcsc.exe
Token: SeDebugPrivilege	4800	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4800	msdcsc.exe
Token: SeChangeNotifyPrivilege	4800	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4800	msdcsc.exe
Token: SeUndockPrivilege	4800	msdcsc.exe
Token: SeManageVolumePrivilege	4800	msdcsc.exe
Token: SeImpersonatePrivilege	4800	msdcsc.exe
Token: SeCreateGlobalPrivilege	4800	msdcsc.exe
Token: 33	4800	msdcsc.exe
Token: 34	4800	msdcsc.exe
Token: 35	4800	msdcsc.exe
Token: 36	4800	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4800	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 920 wrote to memory of 4800	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe	80
PID 920 wrote to memory of 4800	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe	80
PID 920 wrote to memory of 4800	920	027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe	80
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81
PID 4800 wrote to memory of 3320	4800	msdcsc.exe	81

C:\Users\Admin\AppData\Local\Temp\027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
"C:\Users\Admin\AppData\Local\Temp\027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.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:920
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4800
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:3320

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
727KB

MD5
58bd0cb3fb9afa61cdaa25bb0e8a6de0

SHA1
c70b6052af8f72d1261315b11d79d1f5ed644e1f

SHA256
027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194

SHA512
1949b34e1c6712dff92052964f7a990de17ba1e94bb67c5bc0268e9549d32b434a0b4080b4a4369434f6965c58b02cd68b8861ab889c390742f6218aed3314ee

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

Filesize
727KB

MD5
58bd0cb3fb9afa61cdaa25bb0e8a6de0

SHA1
c70b6052af8f72d1261315b11d79d1f5ed644e1f

SHA256
027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194

SHA512
1949b34e1c6712dff92052964f7a990de17ba1e94bb67c5bc0268e9549d32b434a0b4080b4a4369434f6965c58b02cd68b8861ab889c390742f6218aed3314ee

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads