darkcomet | 9aa3c62f690ab6648334024bd50e9c30498b8e9d0a2ad76621143e08aa2bf6a7

Analysis

max time kernel
148s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-09-2024 02:20

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General

Target

fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Size

649KB
MD5

fb50cf459d8b5e2acf7fb29bfac5e7f8
SHA1

a578f9c65c17a25936a89f733fe89a9895189c2a
SHA256

9aa3c62f690ab6648334024bd50e9c30498b8e9d0a2ad76621143e08aa2bf6a7
SHA512

65750c8993d38cb3b4a1771210b3bdcb978bd3b1161a60bca885fdc271516b44b190ade8b31dee2e4255384321581fea93f4792e16345941230cb951d86fc282
SSDEEP

12288:bk0QVlhmPojAPTMEsUTg0oChO/Q2JbsbjPbN5qhRTtYe3f+Iw86k/9/+k:Q0QRWoJEfg0oChGdJQbjPbNW5tYeP+Gd

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-YMYCZ96

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
xozmtRd8vKif
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

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"	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4528	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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.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	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMDCSC.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeSecurityPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeBackupPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeRestorePrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeShutdownPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeDebugPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeUndockPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: 33	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: 34	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: 35	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: 36	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4528	IMDCSC.exe
Token: SeSecurityPrivilege	4528	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	4528	IMDCSC.exe
Token: SeLoadDriverPrivilege	4528	IMDCSC.exe
Token: SeSystemProfilePrivilege	4528	IMDCSC.exe
Token: SeSystemtimePrivilege	4528	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	4528	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	4528	IMDCSC.exe
Token: SeCreatePagefilePrivilege	4528	IMDCSC.exe
Token: SeBackupPrivilege	4528	IMDCSC.exe
Token: SeRestorePrivilege	4528	IMDCSC.exe
Token: SeShutdownPrivilege	4528	IMDCSC.exe
Token: SeDebugPrivilege	4528	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	4528	IMDCSC.exe
Token: SeChangeNotifyPrivilege	4528	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	4528	IMDCSC.exe
Token: SeUndockPrivilege	4528	IMDCSC.exe
Token: SeManageVolumePrivilege	4528	IMDCSC.exe
Token: SeImpersonatePrivilege	4528	IMDCSC.exe
Token: SeCreateGlobalPrivilege	4528	IMDCSC.exe
Token: 33	4528	IMDCSC.exe
Token: 34	4528	IMDCSC.exe
Token: 35	4528	IMDCSC.exe
Token: 36	4528	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4528	IMDCSC.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4000 wrote to memory of 4528	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe	82
PID 4000 wrote to memory of 4528	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe	82
PID 4000 wrote to memory of 4528	4000	fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe	82

C:\Users\Admin\AppData\Local\Temp\fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb50cf459d8b5e2acf7fb29bfac5e7f8_JaffaCakes118.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:4000
- 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:4528

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
649KB

MD5
fb50cf459d8b5e2acf7fb29bfac5e7f8

SHA1
a578f9c65c17a25936a89f733fe89a9895189c2a

SHA256
9aa3c62f690ab6648334024bd50e9c30498b8e9d0a2ad76621143e08aa2bf6a7

SHA512
65750c8993d38cb3b4a1771210b3bdcb978bd3b1161a60bca885fdc271516b44b190ade8b31dee2e4255384321581fea93f4792e16345941230cb951d86fc282

Download Submit
memory/4000-0-0x0000000002120000-0x0000000002121000-memory.dmp

Filesize
4KB

Download
memory/4000-12-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4528-16-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4528-14-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4528-15-0x00000000022A0000-0x00000000022A1000-memory.dmp

Filesize
4KB

Download
memory/4528-13-0x00000000022A0000-0x00000000022A1000-memory.dmp

Filesize
4KB

Download
memory/4528-17-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4528-18-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4528-19-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4528-20-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4528-23-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4528-25-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads