darkcomet | aa03897f125f368df295744f05c713067a03166386167c837341561bb4344c2a

Analysis

max time kernel
141s
max time network
143s
platform
windows7_x64
resource
win7-20241010-en
resource tags

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

Executes dropped EXE 1 IoCs

pid	Process
2600	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.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-1-5-21-3692679935-4019334568-335155002-1000\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

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeSecurityPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeTakeOwnershipPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeLoadDriverPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeSystemProfilePrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeSystemtimePrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeProfSingleProcessPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeIncBasePriorityPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeCreatePagefilePrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeBackupPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeRestorePrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeShutdownPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeDebugPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeSystemEnvironmentPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeChangeNotifyPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeRemoteShutdownPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeUndockPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeManageVolumePrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeImpersonatePrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeCreateGlobalPrivilege	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: 33	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: 34	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: 35	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
Token: SeIncreaseQuotaPrivilege	2600	msdcsc.exe
Token: SeSecurityPrivilege	2600	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2600	msdcsc.exe
Token: SeLoadDriverPrivilege	2600	msdcsc.exe
Token: SeSystemProfilePrivilege	2600	msdcsc.exe
Token: SeSystemtimePrivilege	2600	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2600	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2600	msdcsc.exe
Token: SeCreatePagefilePrivilege	2600	msdcsc.exe
Token: SeBackupPrivilege	2600	msdcsc.exe
Token: SeRestorePrivilege	2600	msdcsc.exe
Token: SeShutdownPrivilege	2600	msdcsc.exe
Token: SeDebugPrivilege	2600	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2600	msdcsc.exe
Token: SeChangeNotifyPrivilege	2600	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2600	msdcsc.exe
Token: SeUndockPrivilege	2600	msdcsc.exe
Token: SeManageVolumePrivilege	2600	msdcsc.exe
Token: SeImpersonatePrivilege	2600	msdcsc.exe
Token: SeCreateGlobalPrivilege	2600	msdcsc.exe
Token: 33	2600	msdcsc.exe
Token: 34	2600	msdcsc.exe
Token: 35	2600	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2600	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 2600	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe	30
PID 2044 wrote to memory of 2600	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe	30
PID 2044 wrote to memory of 2600	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe	30
PID 2044 wrote to memory of 2600	2044	JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6924999b503cf3ffdd3aae6c74903a80.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:2044
- 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:2600

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\Roaming\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
6924999b503cf3ffdd3aae6c74903a80

SHA1
d92b24728a6aa81dc714869567a7f0af2b3d65ae

SHA256
aa03897f125f368df295744f05c713067a03166386167c837341561bb4344c2a

SHA512
6b9d4b673edfe8da3b6eccb7ffa2beef08549222e584e904344f042387414ae64d9a291bfab2d69b99d38c693a38e3afee871efedae221d1ee38afed49cbff4d

Download Submit
memory/2044-0-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2044-12-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2600-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2600-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads