General

  • Target

    022799b64121c1bbc623d1d222a2e860N.exe

  • Size

    1.8MB

  • Sample

    240825-mbr8ps1ckl

  • MD5

    022799b64121c1bbc623d1d222a2e860

  • SHA1

    84f00c16adab385861f6bb32fe573ee2cb3f4c9e

  • SHA256

    ac5abc05b099d2595130f4b9a8ab44332ae5dd3e80113bb36ae1a3c6bd257292

  • SHA512

    e270d078622526925d6319667ff8c3ed8c0eb6c66aef0e843f3a2250f9c728a11a865aa73a859c0e5b40d9d7874a07250cb8aab9b98f178a5e7ee56be7742f81

  • SSDEEP

    24576:BD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/jNSQnwLUl:Bp7E+QrFUBgq2WZ

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    read.dat

  • keylog_flag

    false

  • keylog_folder

    CastC

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_sccafsoidz

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      022799b64121c1bbc623d1d222a2e860N.exe

    • Size

      1.8MB

    • MD5

      022799b64121c1bbc623d1d222a2e860

    • SHA1

      84f00c16adab385861f6bb32fe573ee2cb3f4c9e

    • SHA256

      ac5abc05b099d2595130f4b9a8ab44332ae5dd3e80113bb36ae1a3c6bd257292

    • SHA512

      e270d078622526925d6319667ff8c3ed8c0eb6c66aef0e843f3a2250f9c728a11a865aa73a859c0e5b40d9d7874a07250cb8aab9b98f178a5e7ee56be7742f81

    • SSDEEP

      24576:BD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/jNSQnwLUl:Bp7E+QrFUBgq2WZ

    • Remcos

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks