darkcomet | e311072e1036e0a7ccea16ee7ee255a5501fb6d03857688542993652ed212f6e

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20250410-en
resource tags

arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
submitted
13/04/2025, 17:38

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General

Target

JaffaCakes118_b54f50b6baeb2691198955e8137cb6fa.exe
Size

666KB
MD5

b54f50b6baeb2691198955e8137cb6fa
SHA1

86ce950cec9ea72eaa396f728337911477ed1e35
SHA256

e311072e1036e0a7ccea16ee7ee255a5501fb6d03857688542993652ed212f6e
SHA512

3df54831249539c7de9cf3e1731f3fa58a07eef20ad1fc94e6e959e5487edad8dc39b88efbb5a592f91bee1b342316320e7dba53bb67bc6975354970cb14a298
SSDEEP

12288:x4BheAXzxMOz45UyTPsY4U7yIfTcTEE0j4e1sU0XkbiV/SJDSL:x6heWzCy/yAYhyIYTEE0jzd0XkuV/S9W

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

sir999.no-ip.org:1919

Mutex

DC_MUTEX-UD7GKL4

Attributes

InstallPath
Windupdt\winupdaten.exe
gencode
6�-71zNfc0gr
install
true
offline_keylogger
false
password
nova0000
persistence
false
reg_key
winupdaten

rc4.plain

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:\\Windupdt\\winupdaten.exe"	explore.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-3078542121-369484597-920690335-1000\Control Panel\International\Geo\Nation	JaffaCakes118_b54f50b6baeb2691198955e8137cb6fa.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Control Panel\International\Geo\Nation	explore.exe

Executes dropped EXE 3 IoCs

pid	Process
5576	explore.exe
1516	winupdaten.exe
1212	winupdaten.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-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdaten = "C:\\Windupdt\\winupdaten.exe"	explore.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 5 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdaten.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdaten.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4540	cmd.exe
4672	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4672	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	5576	explore.exe
Token: SeSecurityPrivilege	5576	explore.exe
Token: SeTakeOwnershipPrivilege	5576	explore.exe
Token: SeLoadDriverPrivilege	5576	explore.exe
Token: SeSystemProfilePrivilege	5576	explore.exe
Token: SeSystemtimePrivilege	5576	explore.exe
Token: SeProfSingleProcessPrivilege	5576	explore.exe
Token: SeIncBasePriorityPrivilege	5576	explore.exe
Token: SeCreatePagefilePrivilege	5576	explore.exe
Token: SeBackupPrivilege	5576	explore.exe
Token: SeRestorePrivilege	5576	explore.exe
Token: SeShutdownPrivilege	5576	explore.exe
Token: SeDebugPrivilege	5576	explore.exe
Token: SeSystemEnvironmentPrivilege	5576	explore.exe
Token: SeChangeNotifyPrivilege	5576	explore.exe
Token: SeRemoteShutdownPrivilege	5576	explore.exe
Token: SeUndockPrivilege	5576	explore.exe
Token: SeManageVolumePrivilege	5576	explore.exe
Token: SeImpersonatePrivilege	5576	explore.exe
Token: SeCreateGlobalPrivilege	5576	explore.exe
Token: 33	5576	explore.exe
Token: 34	5576	explore.exe
Token: 35	5576	explore.exe
Token: 36	5576	explore.exe
Token: SeIncreaseQuotaPrivilege	1516	winupdaten.exe
Token: SeSecurityPrivilege	1516	winupdaten.exe
Token: SeTakeOwnershipPrivilege	1516	winupdaten.exe
Token: SeLoadDriverPrivilege	1516	winupdaten.exe
Token: SeIncreaseQuotaPrivilege	1212	winupdaten.exe
Token: SeSecurityPrivilege	1212	winupdaten.exe
Token: SeTakeOwnershipPrivilege	1212	winupdaten.exe
Token: SeLoadDriverPrivilege	1212	winupdaten.exe
Token: SeSystemProfilePrivilege	1212	winupdaten.exe
Token: SeSystemtimePrivilege	1212	winupdaten.exe
Token: SeProfSingleProcessPrivilege	1212	winupdaten.exe
Token: SeIncBasePriorityPrivilege	1212	winupdaten.exe
Token: SeCreatePagefilePrivilege	1212	winupdaten.exe
Token: SeBackupPrivilege	1212	winupdaten.exe
Token: SeRestorePrivilege	1212	winupdaten.exe
Token: SeShutdownPrivilege	1212	winupdaten.exe
Token: SeDebugPrivilege	1212	winupdaten.exe
Token: SeSystemEnvironmentPrivilege	1212	winupdaten.exe
Token: SeChangeNotifyPrivilege	1212	winupdaten.exe
Token: SeRemoteShutdownPrivilege	1212	winupdaten.exe
Token: SeUndockPrivilege	1212	winupdaten.exe
Token: SeManageVolumePrivilege	1212	winupdaten.exe
Token: SeImpersonatePrivilege	1212	winupdaten.exe
Token: SeCreateGlobalPrivilege	1212	winupdaten.exe
Token: 33	1212	winupdaten.exe
Token: 34	1212	winupdaten.exe
Token: 35	1212	winupdaten.exe
Token: 36	1212	winupdaten.exe
Token: SeSystemProfilePrivilege	1516	winupdaten.exe
Token: SeSystemtimePrivilege	1516	winupdaten.exe
Token: SeProfSingleProcessPrivilege	1516	winupdaten.exe
Token: SeIncBasePriorityPrivilege	1516	winupdaten.exe
Token: SeCreatePagefilePrivilege	1516	winupdaten.exe
Token: SeBackupPrivilege	1516	winupdaten.exe
Token: SeRestorePrivilege	1516	winupdaten.exe
Token: SeShutdownPrivilege	1516	winupdaten.exe
Token: SeDebugPrivilege	1516	winupdaten.exe
Token: SeSystemEnvironmentPrivilege	1516	winupdaten.exe
Token: SeChangeNotifyPrivilege	1516	winupdaten.exe
Token: SeRemoteShutdownPrivilege	1516	winupdaten.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4400 wrote to memory of 5576	4400	JaffaCakes118_b54f50b6baeb2691198955e8137cb6fa.exe	87
PID 4400 wrote to memory of 5576	4400	JaffaCakes118_b54f50b6baeb2691198955e8137cb6fa.exe	87
PID 4400 wrote to memory of 5576	4400	JaffaCakes118_b54f50b6baeb2691198955e8137cb6fa.exe	87
PID 4080 wrote to memory of 1516	4080	cmd.exe	90
PID 4080 wrote to memory of 1516	4080	cmd.exe	90
PID 4080 wrote to memory of 1516	4080	cmd.exe	90
PID 5576 wrote to memory of 1212	5576	explore.exe	91
PID 5576 wrote to memory of 1212	5576	explore.exe	91
PID 5576 wrote to memory of 1212	5576	explore.exe	91
PID 5576 wrote to memory of 4540	5576	explore.exe	92
PID 5576 wrote to memory of 4540	5576	explore.exe	92
PID 5576 wrote to memory of 4540	5576	explore.exe	92
PID 4540 wrote to memory of 4672	4540	cmd.exe	94
PID 4540 wrote to memory of 4672	4540	cmd.exe	94
PID 4540 wrote to memory of 4672	4540	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b54f50b6baeb2691198955e8137cb6fa.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b54f50b6baeb2691198955e8137cb6fa.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4400
- C:\Users\Admin\AppData\Local\Temp\explore.exe
  "C:\Users\Admin\AppData\Local\Temp\explore.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5576
- - C:\Windupdt\winupdaten.exe
    "C:\Windupdt\winupdaten.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1212
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\explore.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:4540
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 5
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:4672

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windupdt\winupdaten.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:4080
- C:\Windupdt\winupdaten.exe
  C:\Windupdt\winupdaten.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1516

Network

MITRE ATT&CK Enterprise v16

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

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\explore.exe

Filesize
648KB

MD5
a5f281ff9f6bb6f99abed6d91951f17f

SHA1
8e8bd8a2c46cac42f3c536ff2f90b88da83cb406

SHA256
680f083b4b27c545d459bce11d8c0d7b4a42dcef241b98337eb6fde34bf2050e

SHA512
f00325b76c9d8c865e62b6ebf2798fab4bc362527551fd4587e701deb02da335271cde99ab7364f86af0f732685615012c39110977eafaf85bba05f9e029e8ff

Download Submit
memory/1212-36-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1212-35-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1212-42-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1212-41-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1212-29-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1212-39-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1212-38-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1212-37-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1212-34-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1212-33-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1212-32-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1212-30-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1212-31-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1212-40-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1516-28-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4400-4-0x000000001BD60000-0x000000001BDFC000-memory.dmp

Filesize
624KB

Download
memory/4400-18-0x00007FFD12F00000-0x00007FFD138A1000-memory.dmp

Filesize
9.6MB

Download
memory/4400-1-0x000000001B1E0000-0x000000001B286000-memory.dmp

Filesize
664KB

Download
memory/4400-8-0x00007FFD12F00000-0x00007FFD138A1000-memory.dmp

Filesize
9.6MB

Download
memory/4400-2-0x00007FFD12F00000-0x00007FFD138A1000-memory.dmp

Filesize
9.6MB

Download
memory/4400-7-0x000000001BEC0000-0x000000001BF0C000-memory.dmp

Filesize
304KB

Download
memory/4400-6-0x000000001B0E0000-0x000000001B0E8000-memory.dmp

Filesize
32KB

Download
memory/4400-5-0x00007FFD12F00000-0x00007FFD138A1000-memory.dmp

Filesize
9.6MB

Download
memory/4400-0-0x00007FFD131B5000-0x00007FFD131B6000-memory.dmp

Filesize
4KB

Download
memory/4400-3-0x000000001B760000-0x000000001BC2E000-memory.dmp

Filesize
4.8MB

Download
memory/5576-19-0x0000000002250000-0x0000000002251000-memory.dmp

Filesize
4KB

Download
memory/5576-27-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads