darkcomet | 910eeeae2af17c6ee8009c60e79059f56b903703733937553384f7e772009177

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
03/03/2025, 08:43

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General

Target

JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Size

659KB
MD5

4605f0ccc8e9f079c50e5d89025f300e
SHA1

fe1a8a49fd6b2fc08ca8f69f8d21153f3606a7a2
SHA256

910eeeae2af17c6ee8009c60e79059f56b903703733937553384f7e772009177
SHA512

c4e0bd0a641cf42e4949b1fa98f8b8e86a1b3fd45942b75e63621e637992cf36824ef8278ce3b824f17987fb1d339458252b03bbf57bd05ceb716abc2061fc33
SSDEEP

12288:H9AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKp:dAQ6Zx9cxTmOrucTIEFSpOGk

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

noo-ip.no-ip.biz:1604

Mutex

DC_MUTEX-F54S21D

Attributes

InstallPath
winupdate.exe
gencode
h-*ti+verQk2
install
true
offline_keylogger
false
persistence
false

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:\\Windows\\system32\\winupdate.exe"	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.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-1-5-21-1161330783-2912525651-1278508834-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Windows\\system32\\winupdate.exe"	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Windows\\system32\\winupdate.exe"	notepad.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\winupdate.exe	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
File opened for modification	C:\Windows\SysWOW64\	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
File opened for modification	C:\Windows\SysWOW64\winupdate.exe	notepad.exe
File created	C:\Windows\SysWOW64\winupdate.exe	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4320 set thread context of 4688	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	87

System Location Discovery: System Language Discovery 1 TTPs 3 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_4605f0ccc8e9f079c50e5d89025f300e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Checks processor information in registry 2 TTPs 8 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeSecurityPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeTakeOwnershipPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeLoadDriverPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeSystemProfilePrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeSystemtimePrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeProfSingleProcessPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeIncBasePriorityPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeCreatePagefilePrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeBackupPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeRestorePrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeShutdownPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeDebugPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeSystemEnvironmentPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeChangeNotifyPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeRemoteShutdownPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeUndockPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeManageVolumePrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeImpersonatePrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeCreateGlobalPrivilege	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: 33	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: 34	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: 35	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: 36	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
Token: SeIncreaseQuotaPrivilege	4688	explorer.exe
Token: SeSecurityPrivilege	4688	explorer.exe
Token: SeTakeOwnershipPrivilege	4688	explorer.exe
Token: SeLoadDriverPrivilege	4688	explorer.exe
Token: SeSystemProfilePrivilege	4688	explorer.exe
Token: SeSystemtimePrivilege	4688	explorer.exe
Token: SeProfSingleProcessPrivilege	4688	explorer.exe
Token: SeIncBasePriorityPrivilege	4688	explorer.exe
Token: SeCreatePagefilePrivilege	4688	explorer.exe
Token: SeBackupPrivilege	4688	explorer.exe
Token: SeRestorePrivilege	4688	explorer.exe
Token: SeShutdownPrivilege	4688	explorer.exe
Token: SeDebugPrivilege	4688	explorer.exe
Token: SeSystemEnvironmentPrivilege	4688	explorer.exe
Token: SeChangeNotifyPrivilege	4688	explorer.exe
Token: SeRemoteShutdownPrivilege	4688	explorer.exe
Token: SeUndockPrivilege	4688	explorer.exe
Token: SeManageVolumePrivilege	4688	explorer.exe
Token: SeImpersonatePrivilege	4688	explorer.exe
Token: SeCreateGlobalPrivilege	4688	explorer.exe
Token: 33	4688	explorer.exe
Token: 34	4688	explorer.exe
Token: 35	4688	explorer.exe
Token: 36	4688	explorer.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 3820	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	86
PID 4320 wrote to memory of 4688	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	87
PID 4320 wrote to memory of 4688	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	87
PID 4320 wrote to memory of 4688	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	87
PID 4320 wrote to memory of 4688	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	87
PID 4320 wrote to memory of 4688	4320	JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4605f0ccc8e9f079c50e5d89025f300e.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4320
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:3820
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Checks BIOS information in registry
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:4688

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:\Windows\SysWOW64\winupdate.exe

Filesize
659KB

MD5
4605f0ccc8e9f079c50e5d89025f300e

SHA1
fe1a8a49fd6b2fc08ca8f69f8d21153f3606a7a2

SHA256
910eeeae2af17c6ee8009c60e79059f56b903703733937553384f7e772009177

SHA512
c4e0bd0a641cf42e4949b1fa98f8b8e86a1b3fd45942b75e63621e637992cf36824ef8278ce3b824f17987fb1d339458252b03bbf57bd05ceb716abc2061fc33

Download Submit
memory/3820-2-0x0000000000E00000-0x0000000000E01000-memory.dmp

Filesize
4KB

Download
memory/4320-0-0x00000000021E0000-0x00000000021E1000-memory.dmp

Filesize
4KB

Download
memory/4320-11-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4688-7-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4688-9-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4688-10-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4688-8-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4688-12-0x00000000030F0000-0x00000000030F1000-memory.dmp

Filesize
4KB

Download
memory/4688-13-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4688-14-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/4688-15-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads