General

  • Target

    8bc50fc624999c1b88ed8b842e195d279fdf33e24458b00d74f026026a09d2ab

  • Size

    5.5MB

  • Sample

    240403-m8herscd6v

  • MD5

    701c4e45fa484bab72325df9cee69c80

  • SHA1

    d0b7535defb7d3141b55022312d740833fae8f2b

  • SHA256

    8bc50fc624999c1b88ed8b842e195d279fdf33e24458b00d74f026026a09d2ab

  • SHA512

    a6a3a2bd483b84e7057eb71f3215602a78c12cf37782eb6af5b1d0461ffa4e8d6834921ef9b2557211aa12cccd4fbde8e4b2c0d6ecdfbbb1e7b21ff22413f395

  • SSDEEP

    49152:xIFzxLh+7KFc/rfltudWjXjGjYBJTcWIQKY6sB+gk89esANH1vcUbgkE4W4ed+aW:8h+PL1rkPFDO3RUdSI9LwrYbn

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Targets

    • Target

      8bc50fc624999c1b88ed8b842e195d279fdf33e24458b00d74f026026a09d2ab

    • Size

      5.5MB

    • MD5

      701c4e45fa484bab72325df9cee69c80

    • SHA1

      d0b7535defb7d3141b55022312d740833fae8f2b

    • SHA256

      8bc50fc624999c1b88ed8b842e195d279fdf33e24458b00d74f026026a09d2ab

    • SHA512

      a6a3a2bd483b84e7057eb71f3215602a78c12cf37782eb6af5b1d0461ffa4e8d6834921ef9b2557211aa12cccd4fbde8e4b2c0d6ecdfbbb1e7b21ff22413f395

    • SSDEEP

      49152:xIFzxLh+7KFc/rfltudWjXjGjYBJTcWIQKY6sB+gk89esANH1vcUbgkE4W4ed+aW:8h+PL1rkPFDO3RUdSI9LwrYbn

    • Detect ZGRat V1

    • Modifies firewall policy service

    • Stealc

      Stealc is an infostealer written in C++.

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • 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.

    • Registers COM server for autorun

    • 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.

    • Drops Chrome extension

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks