darkcomet | aa03897f125f368df295744f05c713067a03166386167c837341561bb4344c2a

Analysis

max time kernel
141s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-01-2025 00:30

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General

Target

JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Size

658KB
MD5

6924999b503cf3ffdd3aae6c74903a80
SHA1

d92b24728a6aa81dc714869567a7f0af2b3d65ae
SHA256

aa03897f125f368df295744f05c713067a03166386167c837341561bb4344c2a
SHA512

6b9d4b673edfe8da3b6eccb7ffa2beef08549222e584e904344f042387414ae64d9a291bfab2d69b99d38c693a38e3afee871efedae221d1ee38afed49cbff4d
SSDEEP

12288:O9HMeUmcufrvA3kb445UEJ2jsWiD4EvFuu4cNgZhCiZKD/XdyFG:aiBIGkbxqEcjsWiDxguehC2SJ

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

192.168.1.1:80

Mutex

DC_MUTEX-FWJLFAJ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
QoamEEAfR281
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

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\\Roaming\\MSDCSC\\msdcsc.exe"	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe

Executes dropped EXE 1 IoCs

pid	Process
2336	msdcsc.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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.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	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeSecurityPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeTakeOwnershipPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeLoadDriverPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeSystemProfilePrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeSystemtimePrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeProfSingleProcessPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeIncBasePriorityPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeCreatePagefilePrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeBackupPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeRestorePrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeShutdownPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeDebugPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeSystemEnvironmentPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeChangeNotifyPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeRemoteShutdownPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeUndockPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeManageVolumePrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeImpersonatePrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeCreateGlobalPrivilege	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: 33	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: 34	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: 35	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: 36	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeIncreaseQuotaPrivilege	2336	msdcsc.exe
Token: SeSecurityPrivilege	2336	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2336	msdcsc.exe
Token: SeLoadDriverPrivilege	2336	msdcsc.exe
Token: SeSystemProfilePrivilege	2336	msdcsc.exe
Token: SeSystemtimePrivilege	2336	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2336	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2336	msdcsc.exe
Token: SeCreatePagefilePrivilege	2336	msdcsc.exe
Token: SeBackupPrivilege	2336	msdcsc.exe
Token: SeRestorePrivilege	2336	msdcsc.exe
Token: SeShutdownPrivilege	2336	msdcsc.exe
Token: SeDebugPrivilege	2336	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2336	msdcsc.exe
Token: SeChangeNotifyPrivilege	2336	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2336	msdcsc.exe
Token: SeUndockPrivilege	2336	msdcsc.exe
Token: SeManageVolumePrivilege	2336	msdcsc.exe
Token: SeImpersonatePrivilege	2336	msdcsc.exe
Token: SeCreateGlobalPrivilege	2336	msdcsc.exe
Token: 33	2336	msdcsc.exe
Token: 34	2336	msdcsc.exe
Token: 35	2336	msdcsc.exe
Token: 36	2336	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2336	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 2336	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe	83
PID 2016 wrote to memory of 2336	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe	83
PID 2016 wrote to memory of 2336	2016	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2336

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\AppData\Roaming\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
6924999b503cf3ffdd3aae6c74903a80

SHA1
d92b24728a6aa81dc714869567a7f0af2b3d65ae

SHA256
aa03897f125f368df295744f05c713067a03166386167c837341561bb4344c2a

SHA512
6b9d4b673edfe8da3b6eccb7ffa2beef08549222e584e904344f042387414ae64d9a291bfab2d69b99d38c693a38e3afee871efedae221d1ee38afed49cbff4d

Download Submit
memory/2016-0-0x0000000002280000-0x0000000002281000-memory.dmp

Filesize
4KB

Download
memory/2016-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2336-61-0x0000000000690000-0x0000000000691000-memory.dmp

Filesize
4KB

Download
memory/2336-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2336-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads