General

  • Target

    ad3276e302e34fed06a6afb6db77e6e7dd250df29a5d1695403991b174276f35

  • Size

    5.5MB

  • Sample

    240403-ng89vace3y

  • MD5

    003600bc57311bd8073c1e0e04368dc3

  • SHA1

    278361b1d0fc8339ede2f7119388bb384800214a

  • SHA256

    ad3276e302e34fed06a6afb6db77e6e7dd250df29a5d1695403991b174276f35

  • SHA512

    d859979b185e9cc1b3b41fd5531cbf17c22f6673adf4258868b5a11ed068429f464300546d437ff3582876a99fb1241aa9011182f5625c558bf8ed5be109dfe7

  • SSDEEP

    49152:KIFzxLh+7KFc/rfltudWjXjGjYBJTcWIQKY6sB+gk89esANH1vcUbgkE4W4ed+aN:Fh+PL1rkPFAOFRUdSI9LwrYbN

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Targets

    • Target

      ad3276e302e34fed06a6afb6db77e6e7dd250df29a5d1695403991b174276f35

    • Size

      5.5MB

    • MD5

      003600bc57311bd8073c1e0e04368dc3

    • SHA1

      278361b1d0fc8339ede2f7119388bb384800214a

    • SHA256

      ad3276e302e34fed06a6afb6db77e6e7dd250df29a5d1695403991b174276f35

    • SHA512

      d859979b185e9cc1b3b41fd5531cbf17c22f6673adf4258868b5a11ed068429f464300546d437ff3582876a99fb1241aa9011182f5625c558bf8ed5be109dfe7

    • SSDEEP

      49152:KIFzxLh+7KFc/rfltudWjXjGjYBJTcWIQKY6sB+gk89esANH1vcUbgkE4W4ed+aN:Fh+PL1rkPFAOFRUdSI9LwrYbN

    • Detect ZGRat V1

    • Modifies firewall policy service

    • Stealc

      Stealc is an infostealer written in C++.

    • ZGRat

      ZGRat is remote access trojan written in C#.

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

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Blocklisted process makes network request

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • 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 NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks