General

  • Target

    Quotation.xls

  • Size

    318KB

  • Sample

    240321-vst3maef91

  • MD5

    1288f0ca168aacc05101ccc904e03583

  • SHA1

    1c20c0ce5de4f305a516078208fd34c1208cc0c6

  • SHA256

    9bfce7f2c5ab2456772fb35a7d4d9caf02d6ae5ec0e99d304de36177c30b46e7

  • SHA512

    49d6359a81c442ce4900bf067716938b35da182fc6ee853300de174ba2fc30c83804dcd69b7e8417717f44cefad439d9c143b342b0529efda58a48d25e289613

  • SSDEEP

    6144:r+unhXofKY35qAOJl/YrLYz+WrNhZF+E+fgL+0dD8ivSbV6AMIQbVUGWMWxodhf2:r/hXofr3bV6AMIQbVUGa2f2omen3Hm

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

shgoini.com:30902

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

    Rmc-7XHN5V

  • 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

      Quotation.xls

    • Size

      318KB

    • MD5

      1288f0ca168aacc05101ccc904e03583

    • SHA1

      1c20c0ce5de4f305a516078208fd34c1208cc0c6

    • SHA256

      9bfce7f2c5ab2456772fb35a7d4d9caf02d6ae5ec0e99d304de36177c30b46e7

    • SHA512

      49d6359a81c442ce4900bf067716938b35da182fc6ee853300de174ba2fc30c83804dcd69b7e8417717f44cefad439d9c143b342b0529efda58a48d25e289613

    • SSDEEP

      6144:r+unhXofKY35qAOJl/YrLYz+WrNhZF+E+fgL+0dD8ivSbV6AMIQbVUGWMWxodhf2:r/hXofr3bV6AMIQbVUGa2f2omen3Hm

    Score
    10/10
    • Remcos

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Abuses OpenXML format to download file from external location

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks