General

  • Target

    4cb7762c2f265d8967d2e42e014b5872db83dc3f78365b805d6e666ddb7124c7

  • Size

    1.8MB

  • Sample

    241125-mmnpnaynak

  • MD5

    907bd76d432cc1bf958507adcd270054

  • SHA1

    131bd682061b92bbed95087770bfaf0ecc18442f

  • SHA256

    4cb7762c2f265d8967d2e42e014b5872db83dc3f78365b805d6e666ddb7124c7

  • SHA512

    7e0e3b0a6a52de006886a17d12a300e149a7fc1fcb311fca6cbb89b1108af3ccf2e36f0fecc68de9909b3daefeba7d169915e6503f4efba3c8f08930365345d0

  • SSDEEP

    49152:ekQ7+hs6IQ63Mtp/WP6i79B/oGNT5ymAo0Nj:ex+l8m46iHl5Vcj

Malware Config

Extracted

Family

amadey

Version

4.42

Botnet

9c9aa5

C2

http://185.215.113.43

Attributes
  • install_dir

    abc3bc1985

  • install_file

    skotes.exe

  • strings_key

    8a35cf2ea38c2817dba29a4b5b25dcf0

  • url_paths

    /Zu7JuNko/index.php

rc4.plain

Extracted

Family

stealc

Botnet

mars

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

vidar

Version

11.8

Botnet

93e4f2dec1428009f8bc755e83a21d1b

C2

https://t.me/fu4chmo

https://steamcommunity.com/profiles/76561199802540894

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Targets

    • Target

      4cb7762c2f265d8967d2e42e014b5872db83dc3f78365b805d6e666ddb7124c7

    • Size

      1.8MB

    • MD5

      907bd76d432cc1bf958507adcd270054

    • SHA1

      131bd682061b92bbed95087770bfaf0ecc18442f

    • SHA256

      4cb7762c2f265d8967d2e42e014b5872db83dc3f78365b805d6e666ddb7124c7

    • SHA512

      7e0e3b0a6a52de006886a17d12a300e149a7fc1fcb311fca6cbb89b1108af3ccf2e36f0fecc68de9909b3daefeba7d169915e6503f4efba3c8f08930365345d0

    • SSDEEP

      49152:ekQ7+hs6IQ63Mtp/WP6i79B/oGNT5ymAo0Nj:ex+l8m46iHl5Vcj

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Amadey family

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Detect Vidar Stealer

    • Detects CryptBot payload

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Modifies Windows Defender Real-time Protection settings

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Uses browser remote debugging

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

    • 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.

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Windows security modification

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks