darkcomet | 9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848

Analysis

max time kernel
153s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
14/10/2022, 10:00

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General

Target

9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Size

658KB
MD5

672ca42f446207e8d1fa0f5fa4873ac6
SHA1

afb22bfea4b0ca718bb6bb303c89b0f1e07f2306
SHA256

9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848
SHA512

582d635f0833bae39031b67b5d6966a2c3de404c3e163cca2643489fadfc1a36d56a43151fec4d99f16145e48a6bbd77d52230b52c98332d5f018dd7a15524d9
SSDEEP

12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hq:qZ1xuVVjfFoynPaVBUR8f+kN10EBM

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

dragons117.zapto.org:1604

Mutex

DC_MUTEX-QQJA9CK

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
2o9GtkvW7Bhq
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\\Desktop\\MSDCSC\\msdcsc.exe"	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe

Executes dropped EXE 1 IoCs

pid	Process
3836	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	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.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\\Desktop\\MSDCSC\\msdcsc.exe"	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Desktop\\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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeSecurityPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeTakeOwnershipPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeLoadDriverPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeSystemProfilePrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeSystemtimePrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeProfSingleProcessPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeIncBasePriorityPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeCreatePagefilePrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeBackupPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeRestorePrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeShutdownPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeDebugPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeSystemEnvironmentPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeChangeNotifyPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeRemoteShutdownPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeUndockPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeManageVolumePrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeImpersonatePrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeCreateGlobalPrivilege	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: 33	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: 34	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: 35	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: 36	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
Token: SeIncreaseQuotaPrivilege	3836	msdcsc.exe
Token: SeSecurityPrivilege	3836	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3836	msdcsc.exe
Token: SeLoadDriverPrivilege	3836	msdcsc.exe
Token: SeSystemProfilePrivilege	3836	msdcsc.exe
Token: SeSystemtimePrivilege	3836	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3836	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3836	msdcsc.exe
Token: SeCreatePagefilePrivilege	3836	msdcsc.exe
Token: SeBackupPrivilege	3836	msdcsc.exe
Token: SeRestorePrivilege	3836	msdcsc.exe
Token: SeShutdownPrivilege	3836	msdcsc.exe
Token: SeDebugPrivilege	3836	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3836	msdcsc.exe
Token: SeChangeNotifyPrivilege	3836	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3836	msdcsc.exe
Token: SeUndockPrivilege	3836	msdcsc.exe
Token: SeManageVolumePrivilege	3836	msdcsc.exe
Token: SeImpersonatePrivilege	3836	msdcsc.exe
Token: SeCreateGlobalPrivilege	3836	msdcsc.exe
Token: 33	3836	msdcsc.exe
Token: 34	3836	msdcsc.exe
Token: 35	3836	msdcsc.exe
Token: 36	3836	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3836	msdcsc.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 1496	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	83
PID 4904 wrote to memory of 3836	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	84
PID 4904 wrote to memory of 3836	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	84
PID 4904 wrote to memory of 3836	4904	9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe	84

C:\Users\Admin\AppData\Local\Temp\9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe
"C:\Users\Admin\AppData\Local\Temp\9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  PID:1496
- C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3836

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\Desktop\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
672ca42f446207e8d1fa0f5fa4873ac6

SHA1
afb22bfea4b0ca718bb6bb303c89b0f1e07f2306

SHA256
9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848

SHA512
582d635f0833bae39031b67b5d6966a2c3de404c3e163cca2643489fadfc1a36d56a43151fec4d99f16145e48a6bbd77d52230b52c98332d5f018dd7a15524d9

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

Filesize
658KB

MD5
672ca42f446207e8d1fa0f5fa4873ac6

SHA1
afb22bfea4b0ca718bb6bb303c89b0f1e07f2306

SHA256
9fe0d3edfd5e9fb206edea1ded06d9ea42cdb57aa463deb1570d12a271cd6848

SHA512
582d635f0833bae39031b67b5d6966a2c3de404c3e163cca2643489fadfc1a36d56a43151fec4d99f16145e48a6bbd77d52230b52c98332d5f018dd7a15524d9

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads