General

  • Target

    Purchasev0m20227974.js.pif.exe

  • Size

    1.5MB

  • Sample

    221010-gnk29sbaaj

  • MD5

    03ad40992141e6c10901095d2f9fbe0b

  • SHA1

    c962b9b13a1deca7ad1be5cc7602c92bab676cc8

  • SHA256

    5cc4d6c30090fac70487754d80d491a446e56ae9e22162740f91157615ad00a9

  • SHA512

    eae17695518f60b7f5ff0ea8e3480f391006e97bf5cd429786591c74fd47e231b4870073d518c7573b4c722ee06013f2b58baf42e3a873079cbd79ff2e40bf46

  • SSDEEP

    24576:0AOcZ2i7uVKsdYHec9q3KQS4tPjMuSF/i4Kc+8oYLDdticTr+Mo5pemHI0Yuyqh:iHVKIYHXdPePouY/+cPoYimxo5EmHWqh

Malware Config

Extracted

Family

remcos

Botnet

EXPLORER WD

C2

185.157.162.115:2404

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-Z5IZJT

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    PingPongWD

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family

vjw0rm

C2

http://185.157.162.115:7974

Targets

    • Target

      Purchasev0m20227974.js.pif.exe

    • Size

      1.5MB

    • MD5

      03ad40992141e6c10901095d2f9fbe0b

    • SHA1

      c962b9b13a1deca7ad1be5cc7602c92bab676cc8

    • SHA256

      5cc4d6c30090fac70487754d80d491a446e56ae9e22162740f91157615ad00a9

    • SHA512

      eae17695518f60b7f5ff0ea8e3480f391006e97bf5cd429786591c74fd47e231b4870073d518c7573b4c722ee06013f2b58baf42e3a873079cbd79ff2e40bf46

    • SSDEEP

      24576:0AOcZ2i7uVKsdYHec9q3KQS4tPjMuSF/i4Kc+8oYLDdticTr+Mo5pemHI0Yuyqh:iHVKIYHXdPePouY/+cPoYimxo5EmHWqh

    • Remcos

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

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

    • Blocklisted process makes network request

    • Disables Task Manager via registry modification

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks