Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    15-11-2024 16:37

General

  • Target

    82c624e0eac90e956572497c9fd01879245a3c03b546d2d48eb5ef9e67a3e3f7.exe

  • Size

    1.2MB

  • MD5

    d07ea806e36f7c5194e2383944e7cc42

  • SHA1

    a912d94b2eee9852b8463904b3f748151b775dcd

  • SHA256

    82c624e0eac90e956572497c9fd01879245a3c03b546d2d48eb5ef9e67a3e3f7

  • SHA512

    ea8a56424ad4b8244867a97934fd24532a3f30591dcdffd77a722fa1d216c65efd8c933534ffeeeef1419e1d03af1fc5d15788191693bb248654d9b64c9ca501

  • SSDEEP

    24576:8BOtGnZ12iiD5NNpcqTeNZX0UuZIRC6p4TrR:8B4gZApr6N50UueRC66V

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
  • 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 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\82c624e0eac90e956572497c9fd01879245a3c03b546d2d48eb5ef9e67a3e3f7.exe
    "C:\Users\Admin\AppData\Local\Temp\82c624e0eac90e956572497c9fd01879245a3c03b546d2d48eb5ef9e67a3e3f7.exe"
    1⤵
    • UAC bypass
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2960
    • 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\82c624e0eac90e956572497c9fd01879245a3c03b546d2d48eb5ef9e67a3e3f7.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1692
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe"
      2⤵
        PID:2332
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"
        2⤵
          PID:2720
        • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
          "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          PID:2764
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 2960 -s 888
          2⤵
            PID:2624

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1692-19-0x0000000002D90000-0x0000000002E10000-memory.dmp

          Filesize

          512KB

        • memory/1692-21-0x0000000001E10000-0x0000000001E18000-memory.dmp

          Filesize

          32KB

        • memory/1692-20-0x000000001B6E0000-0x000000001B9C2000-memory.dmp

          Filesize

          2.9MB

        • memory/2332-11-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2332-4-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2332-13-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2332-8-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2332-9-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2332-6-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2764-37-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2764-45-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2764-50-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2764-49-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2764-36-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2764-47-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2764-35-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2764-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2764-38-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2764-39-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2764-40-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2764-41-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2764-46-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2960-3-0x000000001B940000-0x000000001BA12000-memory.dmp

          Filesize

          840KB

        • memory/2960-44-0x000007FEF5210000-0x000007FEF5BFC000-memory.dmp

          Filesize

          9.9MB

        • memory/2960-0-0x000007FEF5213000-0x000007FEF5214000-memory.dmp

          Filesize

          4KB

        • memory/2960-1-0x00000000013C0000-0x00000000013C8000-memory.dmp

          Filesize

          32KB

        • memory/2960-2-0x000007FEF5210000-0x000007FEF5BFC000-memory.dmp

          Filesize

          9.9MB