darkcomet | 2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301

General

Target

2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe
Size

1.5MB
MD5

8f96ab46a0be45d68388cc02c8f0e18d
SHA1

5f4efe013409e483b0d98d5d913f5ca22c609301
SHA256

2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301
SHA512

2e200ffeecdd6e7ab3c78788c9f81b6a6c07ba20e2096bb27d62b47ba34fd0da9bdf21a2c72493c79e702fe8c934d379a4bc53e93c4ca6a296797073b57d637e

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ronaldoqq.duckdns.org:1604

Mutex

DC_MUTEX-3451FFA

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
b0aGszBoAx7P
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

Processes:

vbc.exe

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"	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exevbc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsot@Service = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe"	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	vbc.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe

description pid process target process

PID 892 set thread context of 616 892 2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe vbc.exe

description	pid	process	target process
PID 892 set thread context of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

vbc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	616	vbc.exe
Token: SeSecurityPrivilege	616	vbc.exe
Token: SeTakeOwnershipPrivilege	616	vbc.exe
Token: SeLoadDriverPrivilege	616	vbc.exe
Token: SeSystemProfilePrivilege	616	vbc.exe
Token: SeSystemtimePrivilege	616	vbc.exe
Token: SeProfSingleProcessPrivilege	616	vbc.exe
Token: SeIncBasePriorityPrivilege	616	vbc.exe
Token: SeCreatePagefilePrivilege	616	vbc.exe
Token: SeBackupPrivilege	616	vbc.exe
Token: SeRestorePrivilege	616	vbc.exe
Token: SeShutdownPrivilege	616	vbc.exe
Token: SeDebugPrivilege	616	vbc.exe
Token: SeSystemEnvironmentPrivilege	616	vbc.exe
Token: SeChangeNotifyPrivilege	616	vbc.exe
Token: SeRemoteShutdownPrivilege	616	vbc.exe
Token: SeUndockPrivilege	616	vbc.exe
Token: SeManageVolumePrivilege	616	vbc.exe
Token: SeImpersonatePrivilege	616	vbc.exe
Token: SeCreateGlobalPrivilege	616	vbc.exe
Token: 33	616	vbc.exe
Token: 34	616	vbc.exe
Token: 35	616	vbc.exe

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe

pid	process
892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe
892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe
892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe

pid	process
892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe
892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe
892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe

description	pid	process	target process
PID 892 wrote to memory of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe
PID 892 wrote to memory of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe
PID 892 wrote to memory of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe
PID 892 wrote to memory of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe
PID 892 wrote to memory of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe
PID 892 wrote to memory of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe
PID 892 wrote to memory of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe
PID 892 wrote to memory of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe
PID 892 wrote to memory of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe
PID 892 wrote to memory of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe
PID 892 wrote to memory of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe
PID 892 wrote to memory of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe
PID 892 wrote to memory of 616	892	2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe
"C:\Users\Admin\AppData\Local\Temp\2643fbabf67dfe0de347951a8586a6d945610cb7ee4cacd27c4b83be93aba301.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:892
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  PID:616

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

Scripting

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/616-4-0x000000000048F888-mapping.dmp

Download
memory/616-3-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/616-6-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/616-7-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/892-2-0x0000000075BF1000-0x0000000075BF3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads