General

  • Target
    MV ATHENS GLORY - RFQ_SP-GLO-0320.xlsx.js
  • Size 504KB
  • Sample260820-jvr59sgn71
  • SHA256 8a802c9ee489aac5864b648bd3db2d1ec2db952001776582158df04d83b2d361
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 169.58.169.10:7004

  • 15.204.115.143:7004

Mutex
  • 1q1XR5ItnPIsy5B9

Attributes
  • install_file

    USB.exe

aes.plain
aes.plain

Extracted

Family
  • remcos

Version
  • 7.2.6 Pro

Botnet
  • RemoteHost

C2
  • 15.204.115.143:2404

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

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-1A8F18

  • 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
      MV ATHENS GLORY - RFQ_SP-GLO-0320.xlsx.js
    • Size 504KB
    • SHA256 8a802c9ee489aac5864b648bd3db2d1ec2db952001776582158df04d83b2d361
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Family: Remcos

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

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Adds policy Run key to start application

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Uses browser remote debugging

      Can be used to control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

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

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks