darkcomet | d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0

Analysis

max time kernel
120s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
30-11-2024 14:23

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General

Target

d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Size

690KB
MD5

e0252fb44429d388a10f814121992b30
SHA1

3bbe00564cace10ec07a242731e52530b5d43a03
SHA256

d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0
SHA512

291e4c65d1f84a6617ad6a5c8ab3a75fac6d8da0575f172543d696ff8734b96031644de15c0a87331a3a5a456a678cdd0ecb9c530450ebe5f246f1364c0782ae
SSDEEP

12288:J9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hRd:TZ1xuVVjfFoynPaVBUR8f+kN10EBB

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

buttars0070.no-ip.org:200

Mutex

DC_MUTEX-C1L3QWS

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
Xdt6t605B39w
install
true
offline_keylogger
true
persistence
true
reg_key
rundll32

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\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe

Executes dropped EXE 1 IoCs

pid	Process
2188	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.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	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeSecurityPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeTakeOwnershipPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeLoadDriverPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeSystemProfilePrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeSystemtimePrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeProfSingleProcessPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeIncBasePriorityPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeCreatePagefilePrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeBackupPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeRestorePrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeShutdownPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeDebugPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeSystemEnvironmentPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeChangeNotifyPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeRemoteShutdownPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeUndockPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeManageVolumePrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeImpersonatePrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeCreateGlobalPrivilege	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: 33	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: 34	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: 35	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
Token: SeIncreaseQuotaPrivilege	2188	msdcsc.exe
Token: SeSecurityPrivilege	2188	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2188	msdcsc.exe
Token: SeLoadDriverPrivilege	2188	msdcsc.exe
Token: SeSystemProfilePrivilege	2188	msdcsc.exe
Token: SeSystemtimePrivilege	2188	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2188	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2188	msdcsc.exe
Token: SeCreatePagefilePrivilege	2188	msdcsc.exe
Token: SeBackupPrivilege	2188	msdcsc.exe
Token: SeRestorePrivilege	2188	msdcsc.exe
Token: SeShutdownPrivilege	2188	msdcsc.exe
Token: SeDebugPrivilege	2188	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2188	msdcsc.exe
Token: SeChangeNotifyPrivilege	2188	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2188	msdcsc.exe
Token: SeUndockPrivilege	2188	msdcsc.exe
Token: SeManageVolumePrivilege	2188	msdcsc.exe
Token: SeImpersonatePrivilege	2188	msdcsc.exe
Token: SeCreateGlobalPrivilege	2188	msdcsc.exe
Token: 33	2188	msdcsc.exe
Token: 34	2188	msdcsc.exe
Token: 35	2188	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2188	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2188	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe	30
PID 2296 wrote to memory of 2188	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe	30
PID 2296 wrote to memory of 2188	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe	30
PID 2296 wrote to memory of 2188	2296	d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe	30

C:\Users\Admin\AppData\Local\Temp\d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.exe
"C:\Users\Admin\AppData\Local\Temp\d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0N.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:2296
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2188

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\AppData\Local\Temp\MSDCSC\msdcsc.exe

Filesize
690KB

MD5
e0252fb44429d388a10f814121992b30

SHA1
3bbe00564cace10ec07a242731e52530b5d43a03

SHA256
d9e81eebda7fdfa6bd3b2595f935a4da328ca59e0b33ebf5a9df3043af9df0e0

SHA512
291e4c65d1f84a6617ad6a5c8ab3a75fac6d8da0575f172543d696ff8734b96031644de15c0a87331a3a5a456a678cdd0ecb9c530450ebe5f246f1364c0782ae

Download Submit
memory/2188-19-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2188-18-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2188-24-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2188-14-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2188-15-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2188-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2188-17-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2188-11-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2188-23-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2188-20-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2188-21-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2188-22-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2296-0-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2296-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads