darkcomet | f8362987559c18f86c3140f587c9afe2fb672bf8e7c9cef72a40b023340ba1d6

Analysis

max time kernel
140s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 16:42

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General

Target

Dark Comet 5.3/Dark Comet/server.exe
Size

658KB
MD5

e7cf9689cad376e6e7268bf25a30b63a
SHA1

ebfec08757cc240580cdf3e49d7e10844b4a26ca
SHA256

01883999ea47a8fba7b188d36915d6514cf6299692684547f7b9820310bc5f72
SHA512

37a1f48cf0adfdbd60eb4fc2664e05e9c95f3b069a21992efab4e8dc6ddd0e8c5e33ea5417817eb1e86bbcf6fd99ef67de220a553d1f55d7e7d519b09a87680a
SSDEEP

12288:y9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hU:eZ1xuVVjfFoynPaVBUR8f+kN10EBK

Score

10^/10

darkcomet guest16_min discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

127.0.0.1:1604

Mutex

DCMIN_MUTEX-6NVM9VT

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
UK2Bgjd1gQ7p
install
true
offline_keylogger
true
persistence
false
reg_key
DarkComet RAT

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

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\\DCSCMIN\\IMDCSC.exe"	server.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	server.exe

Executes dropped EXE 1 IoCs

pid	Process
3188	IMDCSC.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	server.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMDCSC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2304	server.exe
Token: SeSecurityPrivilege	2304	server.exe
Token: SeTakeOwnershipPrivilege	2304	server.exe
Token: SeLoadDriverPrivilege	2304	server.exe
Token: SeSystemProfilePrivilege	2304	server.exe
Token: SeSystemtimePrivilege	2304	server.exe
Token: SeProfSingleProcessPrivilege	2304	server.exe
Token: SeIncBasePriorityPrivilege	2304	server.exe
Token: SeCreatePagefilePrivilege	2304	server.exe
Token: SeBackupPrivilege	2304	server.exe
Token: SeRestorePrivilege	2304	server.exe
Token: SeShutdownPrivilege	2304	server.exe
Token: SeDebugPrivilege	2304	server.exe
Token: SeSystemEnvironmentPrivilege	2304	server.exe
Token: SeChangeNotifyPrivilege	2304	server.exe
Token: SeRemoteShutdownPrivilege	2304	server.exe
Token: SeUndockPrivilege	2304	server.exe
Token: SeManageVolumePrivilege	2304	server.exe
Token: SeImpersonatePrivilege	2304	server.exe
Token: SeCreateGlobalPrivilege	2304	server.exe
Token: 33	2304	server.exe
Token: 34	2304	server.exe
Token: 35	2304	server.exe
Token: 36	2304	server.exe
Token: SeIncreaseQuotaPrivilege	3188	IMDCSC.exe
Token: SeSecurityPrivilege	3188	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	3188	IMDCSC.exe
Token: SeLoadDriverPrivilege	3188	IMDCSC.exe
Token: SeSystemProfilePrivilege	3188	IMDCSC.exe
Token: SeSystemtimePrivilege	3188	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	3188	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	3188	IMDCSC.exe
Token: SeCreatePagefilePrivilege	3188	IMDCSC.exe
Token: SeBackupPrivilege	3188	IMDCSC.exe
Token: SeRestorePrivilege	3188	IMDCSC.exe
Token: SeShutdownPrivilege	3188	IMDCSC.exe
Token: SeDebugPrivilege	3188	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	3188	IMDCSC.exe
Token: SeChangeNotifyPrivilege	3188	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	3188	IMDCSC.exe
Token: SeUndockPrivilege	3188	IMDCSC.exe
Token: SeManageVolumePrivilege	3188	IMDCSC.exe
Token: SeImpersonatePrivilege	3188	IMDCSC.exe
Token: SeCreateGlobalPrivilege	3188	IMDCSC.exe
Token: 33	3188	IMDCSC.exe
Token: 34	3188	IMDCSC.exe
Token: 35	3188	IMDCSC.exe
Token: 36	3188	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3188	IMDCSC.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 3188	2304	server.exe	81
PID 2304 wrote to memory of 3188	2304	server.exe	81
PID 2304 wrote to memory of 3188	2304	server.exe	81

C:\Users\Admin\AppData\Local\Temp\Dark Comet 5.3\Dark Comet\server.exe
"C:\Users\Admin\AppData\Local\Temp\Dark Comet 5.3\Dark Comet\server.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
  "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

Filesize
658KB

MD5
e7cf9689cad376e6e7268bf25a30b63a

SHA1
ebfec08757cc240580cdf3e49d7e10844b4a26ca

SHA256
01883999ea47a8fba7b188d36915d6514cf6299692684547f7b9820310bc5f72

SHA512
37a1f48cf0adfdbd60eb4fc2664e05e9c95f3b069a21992efab4e8dc6ddd0e8c5e33ea5417817eb1e86bbcf6fd99ef67de220a553d1f55d7e7d519b09a87680a

Download Submit
memory/2304-0-0x0000000002410000-0x0000000002411000-memory.dmp

Filesize
4KB

Download
memory/2304-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3188-12-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/3188-14-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3188-15-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads