Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-11-2024 12:37

General

  • Target

    Quotation.exe

  • Size

    1.2MB

  • MD5

    9ddd4a2b7410441f0cf78739046eb732

  • SHA1

    08c58c8bcbe0f9475898b74daff61cf9b6e95fb3

  • SHA256

    0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d

  • SHA512

    2201278a617e7b6428cc49e98c8fe976c53a5e006715a1dd8b1d7027c94f144d093a96a708472a03f7252a4b7df393a877ac208495e5b5132cbaca78a3d9b98d

  • SSDEEP

    24576:8BOtGnZ12iiD5NNpcqTeNZX0UuZIRC6p4Tr5:8B4gZApr6N50UueRC66d

Malware Config

Extracted

Family

remcos

Botnet

GASPLANT

C2

dotatech.de:30908

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    chrome-SYTYBI

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Remcos family
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Windows security modification 2 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quotation.exe
    "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
    1⤵
    • UAC bypass
    • Windows security bypass
    • Checks computer location settings
    • Windows security modification
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2040
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Quotation.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2868
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5068
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
      2⤵
        PID:5040

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_m1jqubop.pcf.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/2040-1-0x00000189FD3C0000-0x00000189FD3C8000-memory.dmp

      Filesize

      32KB

    • memory/2040-2-0x00007FF87A7F0000-0x00007FF87B2B1000-memory.dmp

      Filesize

      10.8MB

    • memory/2040-3-0x00000189FFBF0000-0x00000189FFCC2000-memory.dmp

      Filesize

      840KB

    • memory/2040-28-0x00007FF87A7F0000-0x00007FF87B2B1000-memory.dmp

      Filesize

      10.8MB

    • memory/2040-0-0x00007FF87A7F3000-0x00007FF87A7F5000-memory.dmp

      Filesize

      8KB

    • memory/2868-16-0x00000286A7200000-0x00000286A7222000-memory.dmp

      Filesize

      136KB

    • memory/2868-25-0x00007FF87A7F0000-0x00007FF87B2B1000-memory.dmp

      Filesize

      10.8MB

    • memory/2868-21-0x00007FF87A7F0000-0x00007FF87B2B1000-memory.dmp

      Filesize

      10.8MB

    • memory/2868-8-0x00007FF87A7F0000-0x00007FF87B2B1000-memory.dmp

      Filesize

      10.8MB

    • memory/2868-9-0x00007FF87A7F0000-0x00007FF87B2B1000-memory.dmp

      Filesize

      10.8MB

    • memory/5068-7-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-33-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-22-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-5-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-26-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-27-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-4-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-29-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-32-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-6-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-34-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-35-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-36-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-37-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-38-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-39-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5068-40-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB