darkcomet | f8362987559c18f86c3140f587c9afe2fb672bf8e7c9cef72a40b023340ba1d6

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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

Executes dropped EXE 1 IoCs

pid	Process
2156	IMDCSC.exe

Loads dropped DLL 2 IoCs

pid	Process
2996	server.exe
2996	server.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-1-5-21-2039016743-699959520-214465309-1000\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	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMDCSC.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2996	server.exe
Token: SeSecurityPrivilege	2996	server.exe
Token: SeTakeOwnershipPrivilege	2996	server.exe
Token: SeLoadDriverPrivilege	2996	server.exe
Token: SeSystemProfilePrivilege	2996	server.exe
Token: SeSystemtimePrivilege	2996	server.exe
Token: SeProfSingleProcessPrivilege	2996	server.exe
Token: SeIncBasePriorityPrivilege	2996	server.exe
Token: SeCreatePagefilePrivilege	2996	server.exe
Token: SeBackupPrivilege	2996	server.exe
Token: SeRestorePrivilege	2996	server.exe
Token: SeShutdownPrivilege	2996	server.exe
Token: SeDebugPrivilege	2996	server.exe
Token: SeSystemEnvironmentPrivilege	2996	server.exe
Token: SeChangeNotifyPrivilege	2996	server.exe
Token: SeRemoteShutdownPrivilege	2996	server.exe
Token: SeUndockPrivilege	2996	server.exe
Token: SeManageVolumePrivilege	2996	server.exe
Token: SeImpersonatePrivilege	2996	server.exe
Token: SeCreateGlobalPrivilege	2996	server.exe
Token: 33	2996	server.exe
Token: 34	2996	server.exe
Token: 35	2996	server.exe
Token: SeIncreaseQuotaPrivilege	2156	IMDCSC.exe
Token: SeSecurityPrivilege	2156	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	2156	IMDCSC.exe
Token: SeLoadDriverPrivilege	2156	IMDCSC.exe
Token: SeSystemProfilePrivilege	2156	IMDCSC.exe
Token: SeSystemtimePrivilege	2156	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	2156	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	2156	IMDCSC.exe
Token: SeCreatePagefilePrivilege	2156	IMDCSC.exe
Token: SeBackupPrivilege	2156	IMDCSC.exe
Token: SeRestorePrivilege	2156	IMDCSC.exe
Token: SeShutdownPrivilege	2156	IMDCSC.exe
Token: SeDebugPrivilege	2156	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	2156	IMDCSC.exe
Token: SeChangeNotifyPrivilege	2156	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	2156	IMDCSC.exe
Token: SeUndockPrivilege	2156	IMDCSC.exe
Token: SeManageVolumePrivilege	2156	IMDCSC.exe
Token: SeImpersonatePrivilege	2156	IMDCSC.exe
Token: SeCreateGlobalPrivilege	2156	IMDCSC.exe
Token: 33	2156	IMDCSC.exe
Token: 34	2156	IMDCSC.exe
Token: 35	2156	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2156	IMDCSC.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2996 wrote to memory of 2156	2996	server.exe	30
PID 2996 wrote to memory of 2156	2996	server.exe	30
PID 2996 wrote to memory of 2156	2996	server.exe	30
PID 2996 wrote to memory of 2156	2996	server.exe	30

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
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2996
- 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:2156

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

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

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

Filesize
658KB

MD5
e7cf9689cad376e6e7268bf25a30b63a

SHA1
ebfec08757cc240580cdf3e49d7e10844b4a26ca

SHA256
01883999ea47a8fba7b188d36915d6514cf6299692684547f7b9820310bc5f72

SHA512
37a1f48cf0adfdbd60eb4fc2664e05e9c95f3b069a21992efab4e8dc6ddd0e8c5e33ea5417817eb1e86bbcf6fd99ef67de220a553d1f55d7e7d519b09a87680a

Download Submit
memory/2156-10-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2156-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2156-24-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2996-0-0x00000000004E0000-0x00000000004E1000-memory.dmp

Filesize
4KB

Download
memory/2996-12-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads