General

  • Target

    018292540-SuratTeguranPPI-20230814215304.PDF

  • Size

    2.1MB

  • Sample

    241113-asxhjatfpq

  • MD5

    e3d0f03ab192e8872b4f55f1adce1269

  • SHA1

    61546d9f65507e4e3eb880d661a1a4b4f741ac1f

  • SHA256

    19ea9d81975410116f668db902265e8e3c3381655692de707aa1b37ab84484c1

  • SHA512

    91ba2094d5c5c94601e60bf561f67c91872349da9e363e065ff2d65af0f9812b96a3920c3a6cbaf6580cdb676873ddbfa1aa2c7402449985f7a490a8edefd7f5

  • SSDEEP

    24576:I6cblZYtHi+WrePAlb8UNtlD211TLIgXx:I6cblZOC+3PgdKzTLIgh

Malware Config

Extracted

Family

remcos

Botnet

Host

C2

oyo.work.gd:3142

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    vlc

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    pdf

  • mouse_option

    false

  • mutex

    jkm-I9KENP

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    ios

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      018292540-SuratTeguranPPI-20230814215304.PDF

    • Size

      2.1MB

    • MD5

      e3d0f03ab192e8872b4f55f1adce1269

    • SHA1

      61546d9f65507e4e3eb880d661a1a4b4f741ac1f

    • SHA256

      19ea9d81975410116f668db902265e8e3c3381655692de707aa1b37ab84484c1

    • SHA512

      91ba2094d5c5c94601e60bf561f67c91872349da9e363e065ff2d65af0f9812b96a3920c3a6cbaf6580cdb676873ddbfa1aa2c7402449985f7a490a8edefd7f5

    • SSDEEP

      24576:I6cblZYtHi+WrePAlb8UNtlD211TLIgXx:I6cblZOC+3PgdKzTLIgh

    • Remcos

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

    • Remcos family

    • UAC bypass

    • Windows security bypass

    • Looks for VirtualBox Guest Additions in registry

    • Command and Scripting Interpreter: PowerShell

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

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Windows security modification

    • Checks whether UAC is enabled

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks