Overview

overview

10

Static

static

3

baea8f92a5...18.exe

windows7-x64

10

baea8f92a5...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    baea8f92a509da346b2785803537713d_JaffaCakes118
  • Size 814KB
  • Sample240404-rz8mtaba78
  • SHA256 f8e75ae7b73058c83d8e49afd902e29dbd5dc808017d7ec736a8f1aa0ad88c51
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcosremotehostevasionrat

Malware Config

Extracted

Family

  • remcos

Version

  • 3.3.0 Pro

Botnet

  • RemoteHost

C2

  • 172.94.88.26:3033

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-LNYWHZ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    notepad;solitaire;

Targets

    • Target
      baea8f92a509da346b2785803537713d_JaffaCakes118
    • Size 814KB
    • SHA256 f8e75ae7b73058c83d8e49afd902e29dbd5dc808017d7ec736a8f1aa0ad88c51
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    remcosremotehostevasionrat

    • Remcos

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

      ratremcos

    • Looks for VirtualBox Guest Additions in registry

      evasion

    • Looks for VMWare Tools registry key

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks