General

  • Target

    0d16f04c2bf19663d5bdcf923a094629e38f6145d81fe6652e6ef2105ed414c4.zip

  • Size

    109KB

  • Sample

    240825-bdyygszcqe

  • MD5

    36b559df6231a82530db6c525837fbf5

  • SHA1

    064e052f9ab9ae8e9b4569f69db09f561ff6062c

  • SHA256

    0d16f04c2bf19663d5bdcf923a094629e38f6145d81fe6652e6ef2105ed414c4

  • SHA512

    d3cf81b814e93b98b693dec2381928462215dff5f66d5937bc7d84690104a70717b959b6e2a02a9446122f2d542e114ae096e5c14d2fa72ce9a755a6e9b7471c

  • SSDEEP

    3072:gWQrcQo7EqwZf6D5b/bn2YzQzzeHaYVeeV6ZvzkLI:gPrzoo7Zf61/bZUXe6YVOKLI

Malware Config

Extracted

Family

remcos

Botnet

HST2

C2

111.90.148.123:2404

111.90.148.123:80

111.90.148.123:8080

111.90.148.123:5651

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

    swasf-IQB1JV

  • 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

      ad2d7654ab36d32f4c07992d995163624df810591a8a62a5bb6708a491734f98.exe

    • Size

      160KB

    • MD5

      ca811679ed43268456b3e323cae3ed70

    • SHA1

      c0056591460dff8c5a163f6ce0ec7b22d469a4cb

    • SHA256

      ad2d7654ab36d32f4c07992d995163624df810591a8a62a5bb6708a491734f98

    • SHA512

      147ef3311cb53a1efab3d4d05465758d3bee8e040867edb731e385a5c07939ed94008225b790f258f5ee4649cf1d0856d0f32f266fc7cd4797ac7dd4738a789f

    • SSDEEP

      3072:4ahKyd2n31ui5GWp1icKAArDZz4N9GhbkrNEk1uiUT:4ahOw0p0yN90QEZi4

    • Remcos

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Checks computer location settings

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

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks