Overview

overview

10

Static

static

1

RFQ448903423_MAT.exe

windows7-x64

8

RFQ448903423_MAT.exe

windows10-2004-x64

10

Jumblement.ps1

windows7-x64

3

Jumblement.ps1

windows10-2004-x64

8

Sharing

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General

  • Target

    RFQ448903423_MAT.exe

  • Size

    738KB

  • Sample

    241112-wqv3ksyarq

  • MD5

    2e24786e3a50dddc9e8044942ed76557

  • SHA1

    fd17c905199eaa0933fb9b78b45ca0c4e87c787c

  • SHA256

    ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28

  • SHA512

    029375abc32bfd0495334a893682a31ccfeb2251b0d5c64f99cd2b6e6ce96eb10359fbf00b598279f6d5b896ee75da0f3a092f9de610be9b9c33ee23a4a040b3

  • SSDEEP

    12288:oyoqBI5daGf9SVr5Y91FmGe1C1scoGcZhAkFN2ZTyWy0ctqhm2V76:oyocI7aGf9mgjmPSsccAgN2ZT1HI2V76

Score
10/10
remcosclientscollectiondiscoveryexecutionpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

Clients

C2

windowthankyou.duckdns.org:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-0OEGFQ

  • 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

      RFQ448903423_MAT.exe

    • Size

      738KB

    • MD5

      2e24786e3a50dddc9e8044942ed76557

    • SHA1

      fd17c905199eaa0933fb9b78b45ca0c4e87c787c

    • SHA256

      ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28

    • SHA512

      029375abc32bfd0495334a893682a31ccfeb2251b0d5c64f99cd2b6e6ce96eb10359fbf00b598279f6d5b896ee75da0f3a092f9de610be9b9c33ee23a4a040b3

    • SSDEEP

      12288:oyoqBI5daGf9SVr5Y91FmGe1C1scoGcZhAkFN2ZTyWy0ctqhm2V76:oyocI7aGf9mgjmPSsccAgN2ZT1HI2V76

    Score
    10/10
    discoveryexecutionremcosclientscollectionpersistencerat

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Accesses Microsoft Outlook accounts

      collection

    • Adds Run key to start application

      persistence

    • Blocklisted process makes network request

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

    • Target

      Jumblement.Kar

    • Size

      50KB

    • MD5

      5f22e57b55aa6e31d0606fa12e0ee584

    • SHA1

      e83cf829d2d46ce8a16f117a437a32ad63c1173d

    • SHA256

      0fd8188279b05a111878389f3fe41f48f28d27249560005ae6977b0e8fb137b2

    • SHA512

      7c9ed6698e7e593597c92169c5ea97447b786439c09f33e26877852fae74dbdd8082c463baa3f5fefea9b3bb05014999389ec8f306e055ed5c99338fe0335900

    • SSDEEP

      1536:FfJI40kmkpIZNOVdVbTdiU0J/qK2ROiuBhJ9L:FfJ6lkqNYs3eO//

    Score
    8/10
    executionpersistence

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

      persistence

    • Enumerates connected drives

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

    behavioral3behavioral4

MITRE ATT&CK Enterprise v15

Tasks