Overview

overview

10

Static

static

3

a77c3a7206...54.exe

windows7-x64

7

a77c3a7206...54.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a77c3a72069bfe560fd89534dba1be9fcc61ce1a607a02b8874bac9f734acf54.exe

  • Size

    140KB

  • Sample

    250124-yh42mavngw

  • MD5

    9bcbd5ec17c2189fc213f708f18244a0

  • SHA1

    f36f70b25b439d1914121151650f2bc0d2f60be3

  • SHA256

    a77c3a72069bfe560fd89534dba1be9fcc61ce1a607a02b8874bac9f734acf54

  • SHA512

    3a3694c82aedb1eead9dc616505dc1b0d7f150c50c90b6a0cdc0a23d94b60f956a86a62b4af569dffa4047fb37505a221aa313698613d65ec2de4a4f5419aa0c

  • SSDEEP

    3072:xPd4n/M+WLcilrpgGH/GwY87mVmIXhIHVSYK:xP6/M+WLckOBhVmIYPK

Score
10/10
remcoshostdiscoverypersistencerat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

systemcontrol.ddns.net:45000

systemcontrol2.ddns.net:45000
Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    OfficeUpgrade.exe

  • copy_folder

    OfficeUpgrade

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    Upgrader.dat

  • keylog_flag

    false

  • keylog_folder

    Upgrader

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    req_khauflaoyr

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    OfficeUpgrade

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      a77c3a72069bfe560fd89534dba1be9fcc61ce1a607a02b8874bac9f734acf54.exe

    • Size

      140KB

    • MD5

      9bcbd5ec17c2189fc213f708f18244a0

    • SHA1

      f36f70b25b439d1914121151650f2bc0d2f60be3

    • SHA256

      a77c3a72069bfe560fd89534dba1be9fcc61ce1a607a02b8874bac9f734acf54

    • SHA512

      3a3694c82aedb1eead9dc616505dc1b0d7f150c50c90b6a0cdc0a23d94b60f956a86a62b4af569dffa4047fb37505a221aa313698613d65ec2de4a4f5419aa0c

    • SSDEEP

      3072:xPd4n/M+WLcilrpgGH/GwY87mVmIXhIHVSYK:xP6/M+WLckOBhVmIYPK

    Score
    10/10
    discoverypersistenceremcoshostrat

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks