Resubmissions

18-12-2024 22:00

241218-1w4n5atkgv 10

18-12-2024 07:20

241218-h535vaypfz 10

General

  • Target

    17345063495d9ff9a239e91022aad8f2d11b89f02854c4b148235396ec7a0562f12ac23b56442.dat-decoded.exe

  • Size

    429KB

  • Sample

    241218-1w4n5atkgv

  • MD5

    0d323be01f1a4edfd1c8e9f2c344a374

  • SHA1

    08a5cd24b9898676c2b6f8a88b5d42027c05085a

  • SHA256

    c81c405cc7c101ef8dd7c32a457c69495663f46c6039c5dc38e7e8b485b9840f

  • SHA512

    e55cd4dc8c5e24db29f3f2557161af03fd3609474a019fe22285cac04b75878799cdd7ea4e63eafa5fbc75f4318b0d2824a5afd64d8de66c4c0584307dd878de

  • SSDEEP

    6144:3+d2+U+8RRJorR7zu6tF9x46YGg83lgnbJHZFXUU01yC5wJ/3AO2HyXGcKcOxuf:3+d3UGddn4F83l0JjXUU0kXAHTceuf

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

177.106.216.153:2404

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-GEAZH5

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Language
ps1
Source
URLs
ps1.dropper

https://res.cloudinary.com/dzvai86uh/image/upload/v1734315244/m3gtbqktvnocyvm410aa.jpg%20

exe.dropper

https://res.cloudinary.com/dzvai86uh/image/upload/v1734315244/m3gtbqktvnocyvm410aa.jpg%20

Targets

    • Target

      17345063495d9ff9a239e91022aad8f2d11b89f02854c4b148235396ec7a0562f12ac23b56442.dat-decoded.exe

    • Size

      429KB

    • MD5

      0d323be01f1a4edfd1c8e9f2c344a374

    • SHA1

      08a5cd24b9898676c2b6f8a88b5d42027c05085a

    • SHA256

      c81c405cc7c101ef8dd7c32a457c69495663f46c6039c5dc38e7e8b485b9840f

    • SHA512

      e55cd4dc8c5e24db29f3f2557161af03fd3609474a019fe22285cac04b75878799cdd7ea4e63eafa5fbc75f4318b0d2824a5afd64d8de66c4c0584307dd878de

    • SSDEEP

      6144:3+d2+U+8RRJorR7zu6tF9x46YGg83lgnbJHZFXUU01yC5wJ/3AO2HyXGcKcOxuf:3+d3UGddn4F83l0JjXUU0kXAHTceuf

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Event Triggered Execution: Image File Execution Options Injection

    • Looks for Xen service registry key.

    • Sets service image path in registry

    • A potential corporate email address has been identified in the URL: [email protected]

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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.

    • Enumerates connected drives

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

    • Indicator Removal: Clear Persistence

      remove IFEO.

    • Maps connected drives based on registry

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks