General

  • Target

    詢價_(NTU)_台北_2024100044-05TW·pdf.vbs

  • Size

    178KB

  • Sample

    240324-3g8qmsaa93

  • MD5

    7a34ff061a914ba4b62ecd16d20cd118

  • SHA1

    5807fd68faa18f57d43e4c0c3139356b7f441809

  • SHA256

    13dddd9cebc136afea2553f1b780849f830ce51dd73a7e06eccfe25545911f9d

  • SHA512

    2e4db584da14f6644482d98b68558544af9c96aa90875f5f8fcec5ca9767ed0abdafc72ea014949494ed64039c62b5c5b25c84ce107fcb8ce713e11a3dbb1100

  • SSDEEP

    3072:XPvtrVR7t/zhP5AbvMZoxnRcRKKh14t8EIuvQcVi1l8ok/1fyLbvj/3s0oV++hyk:/vdVR7tLhxAbvMZoxnRcsK3M8EIOQcV5

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

a458386d9.duckdns.org:3256

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

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-KQ00DZ

  • 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

      詢價_(NTU)_台北_2024100044-05TW·pdf.vbs

    • Size

      178KB

    • MD5

      7a34ff061a914ba4b62ecd16d20cd118

    • SHA1

      5807fd68faa18f57d43e4c0c3139356b7f441809

    • SHA256

      13dddd9cebc136afea2553f1b780849f830ce51dd73a7e06eccfe25545911f9d

    • SHA512

      2e4db584da14f6644482d98b68558544af9c96aa90875f5f8fcec5ca9767ed0abdafc72ea014949494ed64039c62b5c5b25c84ce107fcb8ce713e11a3dbb1100

    • SSDEEP

      3072:XPvtrVR7t/zhP5AbvMZoxnRcRKKh14t8EIuvQcVi1l8ok/1fyLbvj/3s0oV++hyk:/vdVR7tLhxAbvMZoxnRcsK3M8EIOQcV5

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Remcos

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

    • UAC bypass

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks