darkcomet | 6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 08:18

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General

Target

6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Size

659KB
MD5

e1ab7ea71dbe7721179c6aea9004ea8e
SHA1

73695b2d9b2d18bafd64726f69e9bff9a9a10059
SHA256

6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11
SHA512

84892f44399ae879f3f5ada0a1bcb913e62c609f3433c3b0d775b77da8eba3968992c23e3d606ba0c24c90203c27828b55a48e1c1ea792808cf5e8700e83faed
SSDEEP

12288:nfAFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKL:fAQ6Zx9cxTmOrucTIEFSpOG8

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:\\Windows\\system32\\winupdate.exe"	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.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	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Windows\\system32\\winupdate.exe"	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Windows\\system32\\winupdate.exe"	notepad.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\winupdate.exe	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
File opened for modification	C:\Windows\SysWOW64\winupdate.exe	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
File opened for modification	C:\Windows\SysWOW64\	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
File opened for modification	C:\Windows\SysWOW64\winupdate.exe	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1844 set thread context of 3096	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	86

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	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.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	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.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

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	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeSecurityPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeTakeOwnershipPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeLoadDriverPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeSystemProfilePrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeSystemtimePrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeProfSingleProcessPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeIncBasePriorityPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeCreatePagefilePrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeBackupPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeRestorePrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeShutdownPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeDebugPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeSystemEnvironmentPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeChangeNotifyPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeRemoteShutdownPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeUndockPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeManageVolumePrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeImpersonatePrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeCreateGlobalPrivilege	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: 33	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: 34	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: 35	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: 36	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
Token: SeIncreaseQuotaPrivilege	3096	explorer.exe
Token: SeSecurityPrivilege	3096	explorer.exe
Token: SeTakeOwnershipPrivilege	3096	explorer.exe
Token: SeLoadDriverPrivilege	3096	explorer.exe
Token: SeSystemProfilePrivilege	3096	explorer.exe
Token: SeSystemtimePrivilege	3096	explorer.exe
Token: SeProfSingleProcessPrivilege	3096	explorer.exe
Token: SeIncBasePriorityPrivilege	3096	explorer.exe
Token: SeCreatePagefilePrivilege	3096	explorer.exe
Token: SeBackupPrivilege	3096	explorer.exe
Token: SeRestorePrivilege	3096	explorer.exe
Token: SeShutdownPrivilege	3096	explorer.exe
Token: SeDebugPrivilege	3096	explorer.exe
Token: SeSystemEnvironmentPrivilege	3096	explorer.exe
Token: SeChangeNotifyPrivilege	3096	explorer.exe
Token: SeRemoteShutdownPrivilege	3096	explorer.exe
Token: SeUndockPrivilege	3096	explorer.exe
Token: SeManageVolumePrivilege	3096	explorer.exe
Token: SeImpersonatePrivilege	3096	explorer.exe
Token: SeCreateGlobalPrivilege	3096	explorer.exe
Token: 33	3096	explorer.exe
Token: 34	3096	explorer.exe
Token: 35	3096	explorer.exe
Token: 36	3096	explorer.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 2240	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	85
PID 1844 wrote to memory of 3096	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	86
PID 1844 wrote to memory of 3096	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	86
PID 1844 wrote to memory of 3096	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	86
PID 1844 wrote to memory of 3096	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	86
PID 1844 wrote to memory of 3096	1844	6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe	86

C:\Users\Admin\AppData\Local\Temp\6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.exe
"C:\Users\Admin\AppData\Local\Temp\6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11.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:1844
- 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:2240
- 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:3096

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
e1ab7ea71dbe7721179c6aea9004ea8e

SHA1
73695b2d9b2d18bafd64726f69e9bff9a9a10059

SHA256
6565c9a7ffca26bda7eabc01f5408a937da1dd1f82372749c37bcb0e92914e11

SHA512
84892f44399ae879f3f5ada0a1bcb913e62c609f3433c3b0d775b77da8eba3968992c23e3d606ba0c24c90203c27828b55a48e1c1ea792808cf5e8700e83faed

Download Submit
memory/1844-0-0x0000000002230000-0x0000000002231000-memory.dmp

Filesize
4KB

Download
memory/1844-10-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2240-2-0x0000000000B30000-0x0000000000B31000-memory.dmp

Filesize
4KB

Download
memory/3096-9-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/3096-8-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/3096-7-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/3096-12-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/3096-13-0x0000000000A00000-0x0000000000E33000-memory.dmp

Filesize
4.2MB

Download
memory/3096-11-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads