darkcomet | 14a6bd1c424617202ef7c0c2fd0110be91aa582d729b094a6c7313d8ebaac21b

Analysis

max time kernel
154s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/01/2024, 16:07

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General

Target

680e9c3f35d592e5bb67970823e35252.exe
Size

761KB
MD5

680e9c3f35d592e5bb67970823e35252
SHA1

02ee1040fba1b643d5d0e5ff9e5974269d6b8f66
SHA256

14a6bd1c424617202ef7c0c2fd0110be91aa582d729b094a6c7313d8ebaac21b
SHA512

8ba0c46e8582ae01e935e515e1100eb5f31f9fa82daea351ec41779cbc1ea40d62eea8ef832e84c9e4a8fc4001edd7df75c8ab06f89db7b052b6be78dc355bdf
SSDEEP

12288:XikXBz7TsdZtk5QviGzWILqUsjDGQ1fTjw1/ICteJV2/Y/R468AWcga03U:M1K/IeUG/XwKCtiVCARH8ABl

Score

10^/10

darkcomet persistence rat trojan

Malware Config

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:\\Windupdt\\winupdate.exe"	680e9c3f35d592e5bb67970823e35252.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	680e9c3f35d592e5bb67970823e35252.exe

Executes dropped EXE 2 IoCs

pid	Process
5080	winupdate.exe
4316	winupdate.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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	680e9c3f35d592e5bb67970823e35252.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	winupdate.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4688 set thread context of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 5080 set thread context of 4316	5080	winupdate.exe	93

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	680e9c3f35d592e5bb67970823e35252.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
460	PING.EXE

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeSecurityPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeTakeOwnershipPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeLoadDriverPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeSystemProfilePrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeSystemtimePrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeProfSingleProcessPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeIncBasePriorityPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeCreatePagefilePrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeBackupPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeRestorePrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeShutdownPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeDebugPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeSystemEnvironmentPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeChangeNotifyPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeRemoteShutdownPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeUndockPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeManageVolumePrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeImpersonatePrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeCreateGlobalPrivilege	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: 33	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: 34	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: 35	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: 36	3088	680e9c3f35d592e5bb67970823e35252.exe
Token: SeIncreaseQuotaPrivilege	4316	winupdate.exe
Token: SeSecurityPrivilege	4316	winupdate.exe
Token: SeTakeOwnershipPrivilege	4316	winupdate.exe
Token: SeLoadDriverPrivilege	4316	winupdate.exe
Token: SeSystemProfilePrivilege	4316	winupdate.exe
Token: SeSystemtimePrivilege	4316	winupdate.exe
Token: SeProfSingleProcessPrivilege	4316	winupdate.exe
Token: SeIncBasePriorityPrivilege	4316	winupdate.exe
Token: SeCreatePagefilePrivilege	4316	winupdate.exe
Token: SeBackupPrivilege	4316	winupdate.exe
Token: SeRestorePrivilege	4316	winupdate.exe
Token: SeShutdownPrivilege	4316	winupdate.exe
Token: SeDebugPrivilege	4316	winupdate.exe
Token: SeSystemEnvironmentPrivilege	4316	winupdate.exe
Token: SeChangeNotifyPrivilege	4316	winupdate.exe
Token: SeRemoteShutdownPrivilege	4316	winupdate.exe
Token: SeUndockPrivilege	4316	winupdate.exe
Token: SeManageVolumePrivilege	4316	winupdate.exe
Token: SeImpersonatePrivilege	4316	winupdate.exe
Token: SeCreateGlobalPrivilege	4316	winupdate.exe
Token: 33	4316	winupdate.exe
Token: 34	4316	winupdate.exe
Token: 35	4316	winupdate.exe
Token: 36	4316	winupdate.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4688	680e9c3f35d592e5bb67970823e35252.exe
5080	winupdate.exe
4316	winupdate.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 4688 wrote to memory of 3088	4688	680e9c3f35d592e5bb67970823e35252.exe	88
PID 3088 wrote to memory of 5080	3088	680e9c3f35d592e5bb67970823e35252.exe	90
PID 3088 wrote to memory of 5080	3088	680e9c3f35d592e5bb67970823e35252.exe	90
PID 3088 wrote to memory of 5080	3088	680e9c3f35d592e5bb67970823e35252.exe	90
PID 3088 wrote to memory of 1644	3088	680e9c3f35d592e5bb67970823e35252.exe	91
PID 3088 wrote to memory of 1644	3088	680e9c3f35d592e5bb67970823e35252.exe	91
PID 3088 wrote to memory of 1644	3088	680e9c3f35d592e5bb67970823e35252.exe	91
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 5080 wrote to memory of 4316	5080	winupdate.exe	93
PID 1644 wrote to memory of 460	1644	cmd.exe	94
PID 1644 wrote to memory of 460	1644	cmd.exe	94
PID 1644 wrote to memory of 460	1644	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\680e9c3f35d592e5bb67970823e35252.exe
"C:\Users\Admin\AppData\Local\Temp\680e9c3f35d592e5bb67970823e35252.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4688
- C:\Users\Admin\AppData\Local\Temp\680e9c3f35d592e5bb67970823e35252.exe
  C:\Users\Admin\AppData\Local\Temp\680e9c3f35d592e5bb67970823e35252.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3088
- - C:\Windupdt\winupdate.exe
    "C:\Windupdt\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:5080
  - - C:\Windupdt\winupdate.exe
      C:\Windupdt\winupdate.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:4316
- - 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\680e9c3f35d592e5bb67970823e35252.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1644
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 5
      4⤵
      Runs ping.exe
      PID:460

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

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windupdt\winupdate.exe

Filesize
761KB

MD5
680e9c3f35d592e5bb67970823e35252

SHA1
02ee1040fba1b643d5d0e5ff9e5974269d6b8f66

SHA256
14a6bd1c424617202ef7c0c2fd0110be91aa582d729b094a6c7313d8ebaac21b

SHA512
8ba0c46e8582ae01e935e515e1100eb5f31f9fa82daea351ec41779cbc1ea40d62eea8ef832e84c9e4a8fc4001edd7df75c8ab06f89db7b052b6be78dc355bdf

Download Submit
C:\Windupdt\winupdate.exe

Filesize
640KB

MD5
1a250b56a5c9ed9da3d6f766c03e8d50

SHA1
4b379493a4017516668420e1a1e715d2613b1b0c

SHA256
a67ffc6a6ca9270eb2ad5bb716bfb9f22ab5d041766374be904683c96d74dec3

SHA512
0779310df9c1e1a33f03f66727aaf8c9a68198c2b28910aae9ba19937a02eccbfc295f565d92d642953614e2c562462f57a1d46c3fb62cceef37cc2e2cd231cf

Download Submit
C:\Windupdt\winupdate.exe

Filesize
384KB

MD5
43c1abbed1bde91f680f3676ab6b55d2

SHA1
142a284566294ec66f34cecffaaa90d5428ffc22

SHA256
168347e83ed4309e3f81dddb4e94b7d61069c6ea97ca664561a10b2eb3986714

SHA512
c8a48d271f5e66d1e91b358f43ff5421fd08c9e45f5435a317b2770dacee098f7ff2429f3ed530ef0cc7c73848ff1a19bbdf7e2fca40543421e8c98671df7fbe

Download Submit
memory/3088-70-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3088-6-0x00000000024E0000-0x00000000024E1000-memory.dmp

Filesize
4KB

Download
memory/3088-5-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3088-4-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3088-3-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3088-2-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4316-76-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4316-75-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4316-77-0x0000000002170000-0x0000000002171000-memory.dmp

Filesize
4KB

Download
memory/4316-78-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4316-79-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4316-80-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4316-81-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4316-82-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4316-84-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads