General

  • Target

    OrderBJ 02 - JUNMA016118313306,pdf.exe

  • Size

    3.4MB

  • Sample

    241115-ebmn8aydnk

  • MD5

    2a3fffe85434fb8cc6a49f3778fc018e

  • SHA1

    fc02539e02aeead5dcb46748c8ba92972b2ebbe4

  • SHA256

    a62483d750894703fef38a93f05ed625a25aba89fe80f79318d1193b39cdc198

  • SHA512

    89e8dda82c126f4a5b05c40bcd7cbbbd961c03822aaf4cef09d8a66b02973bb8d0340ffee64ed4aeb18b113cdf4f1aba7464dd290d02edadbd94dea3408496f0

  • SSDEEP

    12288:bezvK8hN5Ei531csIOMRn0ubNDLGgzfRRig8Bl7b76bwpXdcHe+8RpqZUJ9AR:bGS8hwi5RIN0ubJSgOPlUz8RIs9AR

Malware Config

Extracted

Family

remcos

Botnet

WEgood

C2

198.46.178.152:2025

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

    Rmc-BQ3GSA

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      OrderBJ 02 - JUNMA016118313306,pdf.exe

    • Size

      3.4MB

    • MD5

      2a3fffe85434fb8cc6a49f3778fc018e

    • SHA1

      fc02539e02aeead5dcb46748c8ba92972b2ebbe4

    • SHA256

      a62483d750894703fef38a93f05ed625a25aba89fe80f79318d1193b39cdc198

    • SHA512

      89e8dda82c126f4a5b05c40bcd7cbbbd961c03822aaf4cef09d8a66b02973bb8d0340ffee64ed4aeb18b113cdf4f1aba7464dd290d02edadbd94dea3408496f0

    • SSDEEP

      12288:bezvK8hN5Ei531csIOMRn0ubNDLGgzfRRig8Bl7b76bwpXdcHe+8RpqZUJ9AR:bGS8hwi5RIN0ubJSgOPlUz8RIs9AR

    • Remcos

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

    • Remcos family

    • UAC bypass

    • Windows security bypass

    • Command and Scripting Interpreter: PowerShell

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

    • Checks computer location settings

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

    • Uses the VBS compiler for execution

    • Windows security modification

    • Accesses Microsoft Outlook accounts

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks