General

  • Target

    cac7fc4ae9c97eba7455992b2d41449ee257ec485c562bfc7245a90033b1d774

  • Size

    4.1MB

  • Sample

    240325-fpjp6agg68

  • MD5

    c59b5442a81703579cded755bddcc63e

  • SHA1

    c3e36a8ed0952db30676d5cf77b3671238c19272

  • SHA256

    cac7fc4ae9c97eba7455992b2d41449ee257ec485c562bfc7245a90033b1d774

  • SHA512

    c9c834860982652e7ec1db085e534f6b1c35298ce75b29c2cbb0ac04ff40cd64363b458bcbd8c0983cf1ed778a4269372c6bc4ce7f831a6e1e70ee5f4a0772f9

  • SSDEEP

    49152:JtW1B+dRs6iY7idGOL8/actfDdAvNgFzzP/v0x5+TXwwF:L1F0OpF

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Targets

    • Target

      cac7fc4ae9c97eba7455992b2d41449ee257ec485c562bfc7245a90033b1d774

    • Size

      4.1MB

    • MD5

      c59b5442a81703579cded755bddcc63e

    • SHA1

      c3e36a8ed0952db30676d5cf77b3671238c19272

    • SHA256

      cac7fc4ae9c97eba7455992b2d41449ee257ec485c562bfc7245a90033b1d774

    • SHA512

      c9c834860982652e7ec1db085e534f6b1c35298ce75b29c2cbb0ac04ff40cd64363b458bcbd8c0983cf1ed778a4269372c6bc4ce7f831a6e1e70ee5f4a0772f9

    • SSDEEP

      49152:JtW1B+dRs6iY7idGOL8/actfDdAvNgFzzP/v0x5+TXwwF:L1F0OpF

    • Detect ZGRat V1

    • Detects DLL dropped by Raspberry Robin.

      Raspberry Robin.

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • Rhadamanthys

      Rhadamanthys is an info stealer written in C++ first seen in August 2022.

    • Stealc

      Stealc is an infostealer written in C++.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Windows security bypass

    • ZGRat

      ZGRat is remote access trojan written in C#.

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • 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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • 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.

    • 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.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks