Overview

overview

10

Static

static

3

38ddbd7df2...2e.exe

windows7-x64

10

38ddbd7df2...2e.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    110s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-01-2025 05:48

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General

  • Target

    38ddbd7df2d92bc13ccce06c95ee3fcb4ee3151095662330df9438b2e1a0c92e.exe

  • Size

    864KB

  • MD5

    154831ca12b23ff1b10b3900ec4cbb99

  • SHA1

    7183eace34de8cb38e5b57845096188342f394ca

  • SHA256

    38ddbd7df2d92bc13ccce06c95ee3fcb4ee3151095662330df9438b2e1a0c92e

  • SHA512

    b106e8ba82bd694e662abab6117ef293eeb01c5d01efc456326c692e5bfa20a4ebea8678e60f3a8f9eaa5ec3d22f4c7c24d98d6ded07fed5493ce94bb1b9afab

  • SSDEEP

    24576:lJzKTyB6LIVewBV5nmEY9OY847pKdLCAv:fz16LIzpmHD84q

Score
10/10
darkcometdiscoveryevasionpersistencerattrojan

Malware Config

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Darkcomet family
    darkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies firewall policy service 3 TTPs 9 IoCs
    evasion
  • Modifies security service 2 TTPs 3 IoCs
    evasion
  • Windows security bypass 2 TTPs 6 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 3 IoCs
    evasion
  • 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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Windows security modification 2 TTPs 2 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 6 IoCs
    persistence
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 18 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • Modifies registry class 1 IoCs
  • Runs net.exe
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 3 IoCs
    evasion
  • Views/modifies file attributes 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\38ddbd7df2d92bc13ccce06c95ee3fcb4ee3151095662330df9438b2e1a0c92e.exe
    "C:\Users\Admin\AppData\Local\Temp\38ddbd7df2d92bc13ccce06c95ee3fcb4ee3151095662330df9438b2e1a0c92e.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1040
    • C:\Windows\SysWOW64\cmd.exe
      /c net stop MpsSvc
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3240
      • C:\Windows\SysWOW64\net.exe
        net stop MpsSvc
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3708
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop MpsSvc
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2224
    • C:\Program Files (x86)\Internet Explorer\iexplore.exe
      "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4752
    • C:\Users\Admin\AppData\Local\Temp\38ddbd7df2d92bc13ccce06c95ee3fcb4ee3151095662330df9438b2e1a0c92e.exe
      C:\Users\Admin\AppData\Local\Temp\38ddbd7df2d92bc13ccce06c95ee3fcb4ee3151095662330df9438b2e1a0c92e.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2176
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\38ddbd7df2d92bc13ccce06c95ee3fcb4ee3151095662330df9438b2e1a0c92e.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1516
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\38ddbd7df2d92bc13ccce06c95ee3fcb4ee3151095662330df9438b2e1a0c92e.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:1848
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1920
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:4760
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Local\Temp\38ddbd7df2d92bc13ccce06c95ee3fcb4ee3151095662330df9438b2e1a0c92e.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:3836
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 4
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:3252
      • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:636
        • C:\Windows\SysWOW64\cmd.exe
          /c net stop MpsSvc
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3040
          • C:\Windows\SysWOW64\net.exe
            net stop MpsSvc
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2204
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop MpsSvc
              6⤵
              • System Location Discovery: System Language Discovery
              PID:880
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies firewall policy service
          • Modifies security service
          • Windows security bypass
          • Disables RegEdit via registry modification
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:348
        • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          4⤵
          • Modifies firewall policy service
          • Modifies security service
          • Windows security bypass
          • Disables RegEdit via registry modification
          • Executes dropped EXE
          • Windows security modification
          • System Location Discovery: System Language Discovery
          • System policy modification
          PID:1060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Modify Registry

7
T1112

Credential Access

Discovery

Query Registry

1
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\38ddbd7df2d92bc13ccce06c95ee3fcb4ee3151095662330df9438b2e1a0c92e.exe
    Filesize

    864KB

    MD5

    154831ca12b23ff1b10b3900ec4cbb99

    SHA1

    7183eace34de8cb38e5b57845096188342f394ca

    SHA256

    38ddbd7df2d92bc13ccce06c95ee3fcb4ee3151095662330df9438b2e1a0c92e

    SHA512

    b106e8ba82bd694e662abab6117ef293eeb01c5d01efc456326c692e5bfa20a4ebea8678e60f3a8f9eaa5ec3d22f4c7c24d98d6ded07fed5493ce94bb1b9afab

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  • memory/1040-0-0x0000000002220000-0x0000000002224000-memory.dmp

    Filesize

    16KB

    Download

  • memory/1060-53-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

    Download

  • memory/1060-52-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

    Download

  • memory/1060-51-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

    Download

  • memory/2176-5-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

    Download

  • memory/2176-7-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

    Download

  • memory/2176-6-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

    Download

  • memory/2176-8-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

    Download

  • memory/2176-43-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

    Download

  • memory/4752-2-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

    Download