General

  • Target

    25b4b999a42d6673f033b9b1b3fed46c_JaffaCakes118

  • Size

    1.2MB

  • Sample

    240508-txgsesff58

  • MD5

    25b4b999a42d6673f033b9b1b3fed46c

  • SHA1

    a6b0852a33a10065083f9bb0eca01e8b24333b1f

  • SHA256

    163feb1f35ab7ce2ad9da1b9aba8e69441bdf127d644cb7e2874f63675dc192e

  • SHA512

    70f270611801a49c0e2f751edcc150155a7e49f6dfea5fd6ba04335f32b74cad16e6a2dcefa04f5ade1c52b1333ac8d1aed954ad52719f188fd6bc562187d760

  • SSDEEP

    24576:CAHnh+eWsN3skA4RV1Hom2KXMmHaIqCvEloQlJT5:Fh+ZkldoPK8Ya6mB

Malware Config

Extracted

Family

remcos

Version

2.2.0 Pro

Botnet

RAZ-B

C2

31.171.152.104:3104

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    3

  • copy_file

    dskype.exe

  • copy_folder

    dskype

  • delete_file

    true

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-K2U070

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    dskype

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      25b4b999a42d6673f033b9b1b3fed46c_JaffaCakes118

    • Size

      1.2MB

    • MD5

      25b4b999a42d6673f033b9b1b3fed46c

    • SHA1

      a6b0852a33a10065083f9bb0eca01e8b24333b1f

    • SHA256

      163feb1f35ab7ce2ad9da1b9aba8e69441bdf127d644cb7e2874f63675dc192e

    • SHA512

      70f270611801a49c0e2f751edcc150155a7e49f6dfea5fd6ba04335f32b74cad16e6a2dcefa04f5ade1c52b1333ac8d1aed954ad52719f188fd6bc562187d760

    • SSDEEP

      24576:CAHnh+eWsN3skA4RV1Hom2KXMmHaIqCvEloQlJT5:Fh+ZkldoPK8Ya6mB

    • Modifies WinLogon for persistence

    • Remcos

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

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Modifies WinLogon

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks