General

  • Target

    15e4e2d3998c5c604f37df003c4d15726eecf9bbee2a63ab33ac6a0cc0289126

  • Size

    410KB

  • Sample

    240507-2db2tsbc91

  • MD5

    b76b8463d2167fa7f1feb1d562fe18ac

  • SHA1

    9870f08014840f890ef57200a87775d5d199cb5f

  • SHA256

    15e4e2d3998c5c604f37df003c4d15726eecf9bbee2a63ab33ac6a0cc0289126

  • SHA512

    c137dcebc7ea2da5a90898c73ddbf54370d168d7655acffa4cae62586b53e7064871d10b39af363b664529bb39fb60ae895ad61f2ed766f7390a874dbcf01361

  • SSDEEP

    12288:IpUaCbA1fQy08IAKsVU5kTc9E4rQQm+7fLiEivqUa:I1CbAP0zAr1TEE4r0+6pCUa

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Targets

    • Target

      15e4e2d3998c5c604f37df003c4d15726eecf9bbee2a63ab33ac6a0cc0289126

    • Size

      410KB

    • MD5

      b76b8463d2167fa7f1feb1d562fe18ac

    • SHA1

      9870f08014840f890ef57200a87775d5d199cb5f

    • SHA256

      15e4e2d3998c5c604f37df003c4d15726eecf9bbee2a63ab33ac6a0cc0289126

    • SHA512

      c137dcebc7ea2da5a90898c73ddbf54370d168d7655acffa4cae62586b53e7064871d10b39af363b664529bb39fb60ae895ad61f2ed766f7390a874dbcf01361

    • SSDEEP

      12288:IpUaCbA1fQy08IAKsVU5kTc9E4rQQm+7fLiEivqUa:I1CbAP0zAr1TEE4r0+6pCUa

    • Detect ZGRat V1

    • Glupteba

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

    • Glupteba payload

    • Modifies firewall policy service

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • Stealc

      Stealc is an infostealer written in C++.

    • UAC bypass

    • Windows security bypass

    • ZGRat

      ZGRat is remote access trojan written in C#.

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

    • Modifies boot configuration data using bcdedit

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • Checks BIOS information in registry

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

    • 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.

    • 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

    • 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