darkcomet | 4696e768d1f62301de94f8af69ccd28f70feb361951f2c8d1654a4b4ffceee42

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-12-2024 05:24

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General

Target

d0d8f7a2369d3a4feaaedda235c3f065_JaffaCakes118.exe
Size

270KB
MD5

d0d8f7a2369d3a4feaaedda235c3f065
SHA1

d401c14ba10b442ed79ef6bfff232622fc43fee2
SHA256

4696e768d1f62301de94f8af69ccd28f70feb361951f2c8d1654a4b4ffceee42
SHA512

3f5c6193a7ce09bd8f435319ddff36a5f1fc69627dcc1a4a9ec2b38c90c0ea32fc5f39478c926a21eff18a4f483a07519a54c61770a8baf002cabd889f718a87
SSDEEP

6144:p9RzTEQzbOU1KePhG0bXe/RzXY1iqG2PsRLEj:Z/9zbThhG0relIREEj

Score

10^/10

darkcomet discovery persistence rat trojan

Malware Config

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\\winupdate.exe"	Exporer32.exe

Checks BIOS information in registry 2 TTPs 3 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	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	Exporer32.exe

Executes dropped EXE 2 IoCs

pid	Process
1956	Exporer32.exe
2760	winupdate.exe

Loads dropped DLL 6 IoCs

pid	Process
2340	d0d8f7a2369d3a4feaaedda235c3f065_JaffaCakes118.exe
2340	d0d8f7a2369d3a4feaaedda235c3f065_JaffaCakes118.exe
1956	Exporer32.exe
2760	winupdate.exe
2760	winupdate.exe
2760	winupdate.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	Exporer32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1956 set thread context of 3068	1956	Exporer32.exe	31

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 4 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	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d0d8f7a2369d3a4feaaedda235c3f065_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Exporer32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Checks processor information in registry 2 TTPs 12 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	Exporer32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Exporer32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	Exporer32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	winupdate.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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	Exporer32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	Exporer32.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1956	Exporer32.exe
Token: SeSecurityPrivilege	1956	Exporer32.exe
Token: SeTakeOwnershipPrivilege	1956	Exporer32.exe
Token: SeLoadDriverPrivilege	1956	Exporer32.exe
Token: SeSystemProfilePrivilege	1956	Exporer32.exe
Token: SeSystemtimePrivilege	1956	Exporer32.exe
Token: SeProfSingleProcessPrivilege	1956	Exporer32.exe
Token: SeIncBasePriorityPrivilege	1956	Exporer32.exe
Token: SeCreatePagefilePrivilege	1956	Exporer32.exe
Token: SeBackupPrivilege	1956	Exporer32.exe
Token: SeRestorePrivilege	1956	Exporer32.exe
Token: SeShutdownPrivilege	1956	Exporer32.exe
Token: SeDebugPrivilege	1956	Exporer32.exe
Token: SeSystemEnvironmentPrivilege	1956	Exporer32.exe
Token: SeChangeNotifyPrivilege	1956	Exporer32.exe
Token: SeRemoteShutdownPrivilege	1956	Exporer32.exe
Token: SeUndockPrivilege	1956	Exporer32.exe
Token: SeManageVolumePrivilege	1956	Exporer32.exe
Token: SeImpersonatePrivilege	1956	Exporer32.exe
Token: SeCreateGlobalPrivilege	1956	Exporer32.exe
Token: 33	1956	Exporer32.exe
Token: 34	1956	Exporer32.exe
Token: 35	1956	Exporer32.exe
Token: SeIncreaseQuotaPrivilege	2760	winupdate.exe
Token: SeSecurityPrivilege	2760	winupdate.exe
Token: SeTakeOwnershipPrivilege	2760	winupdate.exe
Token: SeLoadDriverPrivilege	2760	winupdate.exe
Token: SeSystemProfilePrivilege	2760	winupdate.exe
Token: SeSystemtimePrivilege	2760	winupdate.exe
Token: SeProfSingleProcessPrivilege	2760	winupdate.exe
Token: SeIncBasePriorityPrivilege	2760	winupdate.exe
Token: SeCreatePagefilePrivilege	2760	winupdate.exe
Token: SeBackupPrivilege	2760	winupdate.exe
Token: SeRestorePrivilege	2760	winupdate.exe
Token: SeShutdownPrivilege	2760	winupdate.exe
Token: SeDebugPrivilege	2760	winupdate.exe
Token: SeSystemEnvironmentPrivilege	2760	winupdate.exe
Token: SeChangeNotifyPrivilege	2760	winupdate.exe
Token: SeRemoteShutdownPrivilege	2760	winupdate.exe
Token: SeUndockPrivilege	2760	winupdate.exe
Token: SeManageVolumePrivilege	2760	winupdate.exe
Token: SeImpersonatePrivilege	2760	winupdate.exe
Token: SeCreateGlobalPrivilege	2760	winupdate.exe
Token: 33	2760	winupdate.exe
Token: 34	2760	winupdate.exe
Token: 35	2760	winupdate.exe
Token: SeIncreaseQuotaPrivilege	3068	explorer.exe
Token: SeSecurityPrivilege	3068	explorer.exe
Token: SeTakeOwnershipPrivilege	3068	explorer.exe
Token: SeLoadDriverPrivilege	3068	explorer.exe
Token: SeSystemProfilePrivilege	3068	explorer.exe
Token: SeSystemtimePrivilege	3068	explorer.exe
Token: SeProfSingleProcessPrivilege	3068	explorer.exe
Token: SeIncBasePriorityPrivilege	3068	explorer.exe
Token: SeCreatePagefilePrivilege	3068	explorer.exe
Token: SeBackupPrivilege	3068	explorer.exe
Token: SeRestorePrivilege	3068	explorer.exe
Token: SeShutdownPrivilege	3068	explorer.exe
Token: SeDebugPrivilege	3068	explorer.exe
Token: SeSystemEnvironmentPrivilege	3068	explorer.exe
Token: SeChangeNotifyPrivilege	3068	explorer.exe
Token: SeRemoteShutdownPrivilege	3068	explorer.exe
Token: SeUndockPrivilege	3068	explorer.exe
Token: SeManageVolumePrivilege	3068	explorer.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2340	d0d8f7a2369d3a4feaaedda235c3f065_JaffaCakes118.exe
2760	winupdate.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 1956	2340	d0d8f7a2369d3a4feaaedda235c3f065_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1956	2340	d0d8f7a2369d3a4feaaedda235c3f065_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1956	2340	d0d8f7a2369d3a4feaaedda235c3f065_JaffaCakes118.exe	30
PID 2340 wrote to memory of 1956	2340	d0d8f7a2369d3a4feaaedda235c3f065_JaffaCakes118.exe	30
PID 1956 wrote to memory of 3068	1956	Exporer32.exe	31
PID 1956 wrote to memory of 3068	1956	Exporer32.exe	31
PID 1956 wrote to memory of 3068	1956	Exporer32.exe	31
PID 1956 wrote to memory of 3068	1956	Exporer32.exe	31
PID 1956 wrote to memory of 3068	1956	Exporer32.exe	31
PID 1956 wrote to memory of 3068	1956	Exporer32.exe	31
PID 1956 wrote to memory of 2760	1956	Exporer32.exe	32
PID 1956 wrote to memory of 2760	1956	Exporer32.exe	32
PID 1956 wrote to memory of 2760	1956	Exporer32.exe	32
PID 1956 wrote to memory of 2760	1956	Exporer32.exe	32
PID 1956 wrote to memory of 2760	1956	Exporer32.exe	32
PID 1956 wrote to memory of 2760	1956	Exporer32.exe	32
PID 1956 wrote to memory of 2760	1956	Exporer32.exe	32

C:\Users\Admin\AppData\Local\Temp\d0d8f7a2369d3a4feaaedda235c3f065_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d0d8f7a2369d3a4feaaedda235c3f065_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\Exporer32.exe
  "C:\Users\Admin\AppData\Local\Temp\Exporer32.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - 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:1956
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    - 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:3068
- - C:\Windupdt\winupdate.exe
    "C:\Windupdt\winupdate.exe"
    3⤵
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2760

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

\Users\Admin\AppData\Local\Temp\Exporer32.exe

Filesize
250KB

MD5
b79442dafc69a6ac050d185c28131c12

SHA1
ab98fd623d80708e16460086ab163cf5bfa8df91

SHA256
c50cc9a938230e13f96e7015cdbdfbbe15aadbf1e8142d8face86042cef7ee6d

SHA512
8d486407c38083970d1685826f0e882b62a4bfbeb0c38865f8879ffd13d48fac6dc634ebb1ec05d7a9a8b34c9e4152d2e5cd250f8083baf3ed8e424f9d8f0b31

Download Submit
memory/1956-32-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/1956-13-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2340-10-0x0000000003160000-0x0000000003223000-memory.dmp

Filesize
780KB

Download
memory/2340-12-0x0000000003160000-0x0000000003223000-memory.dmp

Filesize
780KB

Download
memory/2760-46-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-49-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-37-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-54-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-53-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-52-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-51-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-40-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-41-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-42-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-43-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-44-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-45-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-50-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-47-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2760-48-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/3068-30-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/3068-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3068-24-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/3068-33-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/3068-38-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/3068-39-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads