Windows 7 deprecation

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General

  • Target

    Payment Advice.pdf.js

  • Size

    6KB

  • Sample

    240917-sha6nazarb

  • MD5

    0c7f4b973c24886cbf6ad580c28ca64b

  • SHA1

    147c90fd2d9d9966562f5c3afc440c8c6537cc4d

  • SHA256

    e26a43d75826ef67be5513312598652d6bd93a4ad7510e9d5d96c72f8dc12f92

  • SHA512

    ad8e347277a4b65f8a1e2ca2918213c5bf7a16dc3acd28c7e23768cb4f74d276170c5fe7d3befb87f930b4be128522b965a5c67a50841ed54e98f334f4a483ca

  • SSDEEP

    96:X2mMYzgttgVfsQFJKV0Zs/vU2y35HkHPVHKTonl7ie:hjfwUt3u7j

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

198.37.105.222:8080

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-M9PPH3

  • 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

      Payment Advice.pdf.js

    • Size

      6KB

    • MD5

      0c7f4b973c24886cbf6ad580c28ca64b

    • SHA1

      147c90fd2d9d9966562f5c3afc440c8c6537cc4d

    • SHA256

      e26a43d75826ef67be5513312598652d6bd93a4ad7510e9d5d96c72f8dc12f92

    • SHA512

      ad8e347277a4b65f8a1e2ca2918213c5bf7a16dc3acd28c7e23768cb4f74d276170c5fe7d3befb87f930b4be128522b965a5c67a50841ed54e98f334f4a483ca

    • SSDEEP

      96:X2mMYzgttgVfsQFJKV0Zs/vU2y35HkHPVHKTonl7ie:hjfwUt3u7j

    • Remcos

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

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks

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