Overview

overview

10

Static

static

10

remcos_a.exe

windows7-x64

10

remcos_a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    remcos_a.exe

  • Size

    469KB

  • Sample

    240905-qyl7rasaqk

  • MD5

    722834785974c29b7422d7d06012ce78

  • SHA1

    f1d099552614514b690a6eaa1db898601dd38ce0

  • SHA256

    d819e34aab150310ecd4730140f3568bcc72531c9959e80353497e0f700fecb8

  • SHA512

    2020af70096abef0623a792471eccf2e7cdb44393304d4f50e71dc16cf8e9a185328bc209a5bfc09b67c6dc7d76319b28b2fc249388c4341ab82be6c289e4af8

  • SSDEEP

    12288:Imnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSjn9:4iLJbpI7I2WhQqZ7j9

Score
10/10
hawkeyeremcosremotehostcredential_accessdiscoverykeyloggerpersistenceratspywarestealertrojan

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

firsyt205919-48538.portmap.host:48538

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

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %SystemDrive%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %WinDir%\System32

  • mouse_option

    false

  • mutex

    Rmc-MV66H0

  • screenshot_crypt

    true

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %Temp%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    true

  • take_screenshot_time

    5

Targets

    • Target

      remcos_a.exe

    • Size

      469KB

    • MD5

      722834785974c29b7422d7d06012ce78

    • SHA1

      f1d099552614514b690a6eaa1db898601dd38ce0

    • SHA256

      d819e34aab150310ecd4730140f3568bcc72531c9959e80353497e0f700fecb8

    • SHA512

      2020af70096abef0623a792471eccf2e7cdb44393304d4f50e71dc16cf8e9a185328bc209a5bfc09b67c6dc7d76319b28b2fc249388c4341ab82be6c289e4af8

    • SSDEEP

      12288:Imnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSjn9:4iLJbpI7I2WhQqZ7j9

    Score
    10/10
    remcosremotehostdiscoverypersistencerathawkeyecredential_accesskeyloggerspywarestealertrojan

    • HawkEye

      HawkEye is a malware kit that has seen continuous development since at least 2013.

      keyloggertrojanstealerspywarehawkeye

    • Remcos

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

      ratremcos

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

      credential_accessstealer

    • 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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks