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General

  • Target

    31agosto.vbs

  • Size

    12.8MB

  • Sample

    241003-3kzl5ssfmp

  • MD5

    d4b7c95e0f73138f48eaac89cbd5f0c9

  • SHA1

    e04d20ddae09884f310cab78156fc1056b80ef85

  • SHA256

    2d5345e9eb24e2c81697257c9aad3b5881b89220d0e7f7839a03922c67b8f48a

  • SHA512

    0be7ee792cb12538fb068969be746aad9be3f762aeb42c665180da82add8937a9c3f86c203e98c89357b9dbe58a607c4ab7aaaabe15fc1c916b0e09c43a10180

  • SSDEEP

    96:m6G7MF5ds/Q8u5QiOF09ALs9cDIj4MxayJH9gzdp6:9fnbf9Gs9cDIjlx5JH9mp6

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://pastebin.com/raw/V9y5Q5vv

Extracted

Family

remcos

Botnet

RemoteHost

C2

sost2024ene.duckdns.org:1213

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-0AGASP

  • 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

      31agosto.vbs

    • Size

      12.8MB

    • MD5

      d4b7c95e0f73138f48eaac89cbd5f0c9

    • SHA1

      e04d20ddae09884f310cab78156fc1056b80ef85

    • SHA256

      2d5345e9eb24e2c81697257c9aad3b5881b89220d0e7f7839a03922c67b8f48a

    • SHA512

      0be7ee792cb12538fb068969be746aad9be3f762aeb42c665180da82add8937a9c3f86c203e98c89357b9dbe58a607c4ab7aaaabe15fc1c916b0e09c43a10180

    • SSDEEP

      96:m6G7MF5ds/Q8u5QiOF09ALs9cDIj4MxayJH9gzdp6:9fnbf9Gs9cDIjlx5JH9mp6

    • 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.

    • 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