Overview

overview

10

Static

static

3

signal.exe

windows7-x64

10

signal.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    signal.exe

  • Size

    1.5MB

  • Sample

    241003-p382msxhmj

  • MD5

    9dec1c534645220226f5ccbcdf62735e

  • SHA1

    20aa85f6cc99c0d85f4c89dc01f086318d7428bb

  • SHA256

    70b3d2584c3d10a03a21db536f2a8424fd749080ebd42aa6293399db6c05b8b6

  • SHA512

    d28843905c5b6ebef95c6c95a1cdc845d90cd5c599003814869e55811122043835e64f72d70b5111667428342a81c0963741941eac019d33cf7f6ea9986a30ba

  • SSDEEP

    24576:29oVekhiUxxckIcBuhvjhlIb02y3K5VC3AAFUHAlDx73AQIOcoWEWyGA4:2mskYUYkxB0QbcMCQM7wQhcNEWd/

Score
10/10
remcostwodiscoveryrat

Malware Config

Extracted

Family

remcos

Botnet

two

C2

101.99.93.144:4899

101.99.93.144:8080

101.99.93.144:2404

101.99.93.144:80

101.99.93.144:465

101.99.93.144:50255
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

    rmc

  • mouse_option

    false

  • mutex

    gfjdnsss-HQ4LYN

  • 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

      signal.exe

    • Size

      1.5MB

    • MD5

      9dec1c534645220226f5ccbcdf62735e

    • SHA1

      20aa85f6cc99c0d85f4c89dc01f086318d7428bb

    • SHA256

      70b3d2584c3d10a03a21db536f2a8424fd749080ebd42aa6293399db6c05b8b6

    • SHA512

      d28843905c5b6ebef95c6c95a1cdc845d90cd5c599003814869e55811122043835e64f72d70b5111667428342a81c0963741941eac019d33cf7f6ea9986a30ba

    • SSDEEP

      24576:29oVekhiUxxckIcBuhvjhlIb02y3K5VC3AAFUHAlDx73AQIOcoWEWyGA4:2mskYUYkxB0QbcMCQM7wQhcNEWd/

    Score
    10/10
    remcostwodiscoveryrat

    • Remcos

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

      ratremcos

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Checks computer location settings

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

    • Deletes itself

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates processes with tasklist

      discovery
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks