darkcomet | 94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604

Analysis

max time kernel
151s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 18:26

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General

Target

94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Size

658KB
MD5

59bc1bbbe088f8cb41308fb7d3132be9
SHA1

fa8f3540c30298d776796d3768a44e89cecbfb65
SHA256

94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604
SHA512

7be4b2f540b69379a1474898f2b9d64e24f4257ad36a904fe4bbf75be0c4fc1884022ad5465d1217e5f410e944f9dab5f80f137a911721cb7c4789e8b9fabb1e
SSDEEP

12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hc:KZ1xuVVjfFoynPaVBUR8f+kN10EBC

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

mijnpoepetenxd.ddns.net:443

Mutex

DC_MUTEX-2S3DT5Y

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
3ZEuvTt3lYFT
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"	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe

Executes dropped EXE 1 IoCs

pid	Process
2072	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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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 behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2072	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeSecurityPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeTakeOwnershipPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeLoadDriverPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeSystemProfilePrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeSystemtimePrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeProfSingleProcessPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeIncBasePriorityPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeCreatePagefilePrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeBackupPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeRestorePrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeShutdownPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeDebugPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeSystemEnvironmentPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeChangeNotifyPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeRemoteShutdownPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeUndockPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeManageVolumePrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeImpersonatePrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeCreateGlobalPrivilege	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: 33	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: 34	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: 35	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: 36	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
Token: SeIncreaseQuotaPrivilege	2072	msdcsc.exe
Token: SeSecurityPrivilege	2072	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2072	msdcsc.exe
Token: SeLoadDriverPrivilege	2072	msdcsc.exe
Token: SeSystemProfilePrivilege	2072	msdcsc.exe
Token: SeSystemtimePrivilege	2072	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2072	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2072	msdcsc.exe
Token: SeCreatePagefilePrivilege	2072	msdcsc.exe
Token: SeBackupPrivilege	2072	msdcsc.exe
Token: SeRestorePrivilege	2072	msdcsc.exe
Token: SeShutdownPrivilege	2072	msdcsc.exe
Token: SeDebugPrivilege	2072	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2072	msdcsc.exe
Token: SeChangeNotifyPrivilege	2072	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2072	msdcsc.exe
Token: SeUndockPrivilege	2072	msdcsc.exe
Token: SeManageVolumePrivilege	2072	msdcsc.exe
Token: SeImpersonatePrivilege	2072	msdcsc.exe
Token: SeCreateGlobalPrivilege	2072	msdcsc.exe
Token: 33	2072	msdcsc.exe
Token: 34	2072	msdcsc.exe
Token: 35	2072	msdcsc.exe
Token: 36	2072	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2072	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2072	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe	81
PID 2128 wrote to memory of 2072	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe	81
PID 2128 wrote to memory of 2072	2128	94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe	81
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82
PID 2072 wrote to memory of 3872	2072	msdcsc.exe	82

C:\Users\Admin\AppData\Local\Temp\94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.exe
"C:\Users\Admin\AppData\Local\Temp\94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604.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:2128
- 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 behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2072
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:3872

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
658KB

MD5
59bc1bbbe088f8cb41308fb7d3132be9

SHA1
fa8f3540c30298d776796d3768a44e89cecbfb65

SHA256
94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604

SHA512
7be4b2f540b69379a1474898f2b9d64e24f4257ad36a904fe4bbf75be0c4fc1884022ad5465d1217e5f410e944f9dab5f80f137a911721cb7c4789e8b9fabb1e

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

Filesize
658KB

MD5
59bc1bbbe088f8cb41308fb7d3132be9

SHA1
fa8f3540c30298d776796d3768a44e89cecbfb65

SHA256
94504f0b203bccd77720c2a6c0b1cea42679f3a7ccdab84c6ca9004442426604

SHA512
7be4b2f540b69379a1474898f2b9d64e24f4257ad36a904fe4bbf75be0c4fc1884022ad5465d1217e5f410e944f9dab5f80f137a911721cb7c4789e8b9fabb1e

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads