Overview

overview

10

Static

static

3

76c67a9a7f...3e.exe

windows7-x64

1

76c67a9a7f...3e.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-11-2024 02:32

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General

  • Target

    76c67a9a7f86000d03ecca3a53412616677be7841755bccb6b1b988568b8fa3e.exe

  • Size

    3.7MB

  • MD5

    b153c9fd78a67b3dd7153be08578854b

  • SHA1

    543590bc927b67e643cd2a20926f0633adca896b

  • SHA256

    76c67a9a7f86000d03ecca3a53412616677be7841755bccb6b1b988568b8fa3e

  • SHA512

    3828a518c99f8e7352157689c4f22014bad7c8868a831fd8bf4d875eff3048bd3804e74e8dffb8be4d70ac69a324a5070c8571d4441ec15f334f08f7bc38d4a4

  • SSDEEP

    12288:8EsEqWDSTFM2Txgi4bEcxpzYiwpb5ZaHhhx8FNA+fyXETyTyt8spi6ixg4dW:9qWD0MsgbZp8yzmbA+fJTyTytxpqzk

Score
10/10
remcosgasplantevasionexecutionrattrojan

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.

    ratremcos
  • Remcos family
    remcos
  • UAC bypass 3 TTPs 1 IoCs
    evasiontrojan
  • Windows security bypass 2 TTPs 2 IoCs
    evasiontrojan
  • 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.

    execution
  • 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
    evasiontrojan
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\76c67a9a7f86000d03ecca3a53412616677be7841755bccb6b1b988568b8fa3e.exe
    "C:\Users\Admin\AppData\Local\Temp\76c67a9a7f86000d03ecca3a53412616677be7841755bccb6b1b988568b8fa3e.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 AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4000
    • 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\76c67a9a7f86000d03ecca3a53412616677be7841755bccb6b1b988568b8fa3e.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2552
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe"
      2⤵
        PID:4696
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4696 -s 24
          3⤵
          • Program crash
          PID:3076
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe"
        2⤵
          PID:1180
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4696 -ip 4696
        1⤵
          PID:3256

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_chq3xecw.5cc.ps1
          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

          Download Submit

        • memory/2552-5-0x00007FFA20940000-0x00007FFA21401000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/2552-6-0x00007FFA20940000-0x00007FFA21401000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/2552-12-0x00007FFA20940000-0x00007FFA21401000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/2552-17-0x0000018E24F50000-0x0000018E24F72000-memory.dmp

          Filesize

          136KB

          Download

        • memory/2552-21-0x00007FFA20940000-0x00007FFA21401000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/4000-0-0x00007FFA20943000-0x00007FFA20945000-memory.dmp

          Filesize

          8KB

          Download

        • memory/4000-1-0x000002D15B750000-0x000002D15B75A000-memory.dmp

          Filesize

          40KB

          Download

        • memory/4000-2-0x000002D15D3C0000-0x000002D15D490000-memory.dmp

          Filesize

          832KB

          Download

        • memory/4000-3-0x00007FFA20940000-0x00007FFA21401000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/4000-19-0x00007FFA20940000-0x00007FFA21401000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/4696-4-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

          Download