darkcomet | 28143e132fd376bfd604ca691bcb7e17ebd5e53f33350857e28c4c7e902d3db3

Analysis

max time kernel
149s
max time network
146s
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, 12:54

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General

Target

28143e132fd376bfd604ca691bcb7e17ebd5e53f33350857e28c4c7e902d3db3.exe
Size

1.0MB
MD5

e17eb3edf1a499f7c5c4db9b108fdd52
SHA1

7c5ced6fd3f90862ee2b99594db7f82e2f27c631
SHA256

28143e132fd376bfd604ca691bcb7e17ebd5e53f33350857e28c4c7e902d3db3
SHA512

9f99c43a60d864d80dabc01844458490800c83bd1293315f61368b2444a6a1c006eff277853276067baa2dea8cd807b9d5f676550144bd3b7fe4e8be70c1f06d
SSDEEP

24576:LuDXTIGaPhEYzUzA0p5GHZKLveFKNhEaj2S0Fv:CDjlabwz9p5GHZKLVjE5

Score

10^/10

darkcomet guest16 discovery evasion rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

10.0.2.15:1609

Mutex

DC_MUTEX-P0JRNS5

Attributes

gencode
wYoGsyz7YM05
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	Document_9.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	Document_9.exe

Disables Task Manager via registry modification
evasion

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2904	attrib.exe
2636	attrib.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	28143e132fd376bfd604ca691bcb7e17ebd5e53f33350857e28c4c7e902d3db3.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	Document_9.exe

Executes dropped EXE 1 IoCs

pid	Process
4388	Document_9.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 6 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	Document_9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4388	Document_9.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4388	Document_9.exe
Token: SeSecurityPrivilege	4388	Document_9.exe
Token: SeTakeOwnershipPrivilege	4388	Document_9.exe
Token: SeLoadDriverPrivilege	4388	Document_9.exe
Token: SeSystemProfilePrivilege	4388	Document_9.exe
Token: SeSystemtimePrivilege	4388	Document_9.exe
Token: SeProfSingleProcessPrivilege	4388	Document_9.exe
Token: SeIncBasePriorityPrivilege	4388	Document_9.exe
Token: SeCreatePagefilePrivilege	4388	Document_9.exe
Token: SeBackupPrivilege	4388	Document_9.exe
Token: SeRestorePrivilege	4388	Document_9.exe
Token: SeShutdownPrivilege	4388	Document_9.exe
Token: SeDebugPrivilege	4388	Document_9.exe
Token: SeSystemEnvironmentPrivilege	4388	Document_9.exe
Token: SeChangeNotifyPrivilege	4388	Document_9.exe
Token: SeRemoteShutdownPrivilege	4388	Document_9.exe
Token: SeUndockPrivilege	4388	Document_9.exe
Token: SeManageVolumePrivilege	4388	Document_9.exe
Token: SeImpersonatePrivilege	4388	Document_9.exe
Token: SeCreateGlobalPrivilege	4388	Document_9.exe
Token: 33	4388	Document_9.exe
Token: 34	4388	Document_9.exe
Token: 35	4388	Document_9.exe
Token: 36	4388	Document_9.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4388	Document_9.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 4388	2340	28143e132fd376bfd604ca691bcb7e17ebd5e53f33350857e28c4c7e902d3db3.exe	84
PID 2340 wrote to memory of 4388	2340	28143e132fd376bfd604ca691bcb7e17ebd5e53f33350857e28c4c7e902d3db3.exe	84
PID 2340 wrote to memory of 4388	2340	28143e132fd376bfd604ca691bcb7e17ebd5e53f33350857e28c4c7e902d3db3.exe	84
PID 4388 wrote to memory of 1100	4388	Document_9.exe	87
PID 4388 wrote to memory of 1100	4388	Document_9.exe	87
PID 4388 wrote to memory of 1100	4388	Document_9.exe	87
PID 4388 wrote to memory of 4364	4388	Document_9.exe	89
PID 4388 wrote to memory of 4364	4388	Document_9.exe	89
PID 4388 wrote to memory of 4364	4388	Document_9.exe	89
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 4388 wrote to memory of 2164	4388	Document_9.exe	91
PID 1100 wrote to memory of 2636	1100	cmd.exe	93
PID 1100 wrote to memory of 2636	1100	cmd.exe	93
PID 1100 wrote to memory of 2636	1100	cmd.exe	93
PID 4364 wrote to memory of 2904	4364	cmd.exe	94
PID 4364 wrote to memory of 2904	4364	cmd.exe	94
PID 4364 wrote to memory of 2904	4364	cmd.exe	94

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2636	attrib.exe
2904	attrib.exe

C:\Users\Admin\AppData\Local\Temp\28143e132fd376bfd604ca691bcb7e17ebd5e53f33350857e28c4c7e902d3db3.exe
"C:\Users\Admin\AppData\Local\Temp\28143e132fd376bfd604ca691bcb7e17ebd5e53f33350857e28c4c7e902d3db3.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\Document_9.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Document_9.exe"
  2⤵
  - Modifies security service
  - Disables RegEdit via registry modification
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4388
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Document_9.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1100
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Document_9.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2636
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\RarSFX0" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4364
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\RarSFX0" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2904
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2164

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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:\Users\Admin\AppData\Local\Temp\RarSFX0\Document_9.exe

Filesize
658KB

MD5
f55924b6e77ced8d2502b2a3f54874da

SHA1
c5e0c5e41aa5a58472d3f0260e2eae2f222a36c4

SHA256
4b4bb0d6e309a1ebe80a5e6fc8c500ec766aaf4031c9c956de31e080c0da931d

SHA512
be332b98cc4390fdcbd5d4cabdfbb5767b8b683eedbb42f7e9170c01301312e51654862ee79ba519fa7600cfbedd9346386682974d00f96b370052df76e0e98d

Download Submit
memory/2164-15-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/4388-14-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/4388-16-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/4388-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4388-19-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads