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General

  • Target

    1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe

  • Size

    386KB

  • Sample

    240429-bf4xhsdf57

  • MD5

    0c4043a9a9efff20810530fd0cad91d7

  • SHA1

    ca3adc7e4f1a027a2969749ccd5e2c1b06b88162

  • SHA256

    1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc

  • SHA512

    e5cb239c051ad141a56ca464be8068cebdc58029e39bc2d31495b27a5267604748f590397c2269d01b42f07af5a8840c8d3b339f4f042db165bd9c023a332d17

  • SSDEEP

    12288:J6zu3pBE2tnPIuE2nGewVMGrNRdb2KZkfgV3:Izu3pBE2tnP3nGBeGHkKZkO

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Targets

    • Target

      1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe

    • Size

      386KB

    • MD5

      0c4043a9a9efff20810530fd0cad91d7

    • SHA1

      ca3adc7e4f1a027a2969749ccd5e2c1b06b88162

    • SHA256

      1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc

    • SHA512

      e5cb239c051ad141a56ca464be8068cebdc58029e39bc2d31495b27a5267604748f590397c2269d01b42f07af5a8840c8d3b339f4f042db165bd9c023a332d17

    • SSDEEP

      12288:J6zu3pBE2tnPIuE2nGewVMGrNRdb2KZkfgV3:Izu3pBE2tnP3nGBeGHkKZkO

    • Detect ZGRat V1

    • Glupteba

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

    • Glupteba payload

    • Modifies firewall policy service

    • SectopRAT

      SectopRAT is a remote access trojan first seen in November 2019.

    • SectopRAT payload

    • Stealc

      Stealc is an infostealer written in C++.

    • Windows security bypass

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • Detect binaries embedding considerable number of MFA browser extension IDs.

    • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects encrypted or obfuscated .NET executables

    • Detects executables (downlaoders) containing URLs to raw contents of a paste

    • Detects executables Discord URL observed in first stage droppers

    • Detects executables containing URLs to raw contents of a Github gist

    • Detects executables containing artifacts associated with disabling Widnows Defender

    • Detects executables packed with Themida

    • Detects executables packed with or use KoiVM

    • Detects executables referencing many varying, potentially fake Windows User-Agents

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

    • Modifies boot configuration data using bcdedit

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • 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.

    • 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.

    • 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

    • 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 WinMon driver.

      Roottkits write to WinMon to hide PIDs from being detected.

    • 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