Analysis

  • max time kernel
    149s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-08-2024 01:28

General

  • Target

    2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe

  • Size

    853KB

  • MD5

    72fa44e3e13d946e188485a4115c67f4

  • SHA1

    36571ccce2ae7f092c8bff4fe80b7b4cd37eee66

  • SHA256

    2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9

  • SHA512

    c1a97252b5b0048e861f2c2409b517ce86db911bae64606bbdfb482abb7d94877826265f7ef47c59c134c734054edbcb55b6e0a7317f43ddd35eabcc67717d7c

  • SSDEEP

    24576:mBXu9HGaVHoB42WGiRjocxGJo3ToETGMCjm:mw9VHM4YSjoaw8oEqMC

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

194.169.175.190:2404

Attributes
  • audio_folder

    MicRecords

  • 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

    Rmc-LBZ2BK

  • 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.

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • 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: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe
    "C:\Users\Admin\AppData\Local\Temp\2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4400
    • C:\Windows\SysWOW64\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe"
      2⤵
        PID:668
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1036,i,5469445176230119590,7931734017267321834,262144 --variations-seed-version --mojo-platform-channel-handle=3956 /prefetch:8
      1⤵
        PID:4328

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/668-19-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/668-23-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/668-13-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/668-15-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/668-20-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/668-17-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/668-25-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/668-24-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/668-22-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/668-21-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/668-18-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4400-16-0x0000000000040000-0x0000000000217000-memory.dmp

        Filesize

        1.8MB

      • memory/4400-0-0x0000000000040000-0x0000000000217000-memory.dmp

        Filesize

        1.8MB

      • memory/4400-12-0x0000000003D50000-0x0000000003D54000-memory.dmp

        Filesize

        16KB