Overview

overview

10

Static

static

3

02eac2d8c0...13.exe

windows7-x64

3

02eac2d8c0...13.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    02eac2d8c04bfbabf5285b5fb1badf755e16ae50899f6bd7b788654e85a20613.exe
  • Size 421KB
  • Sample240607-bc8rasfg97
  • SHA256 02eac2d8c04bfbabf5285b5fb1badf755e16ae50899f6bd7b788654e85a20613
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
stealcvidardiscoveryspywarestealer

Malware Config

Extracted

Family

  • stealc

rc4.plain

Extracted

Family

  • vidar

C2

  • https://t.me/r8z0l

  • https://steamcommunity.com/profiles/76561199698764354

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target
      02eac2d8c04bfbabf5285b5fb1badf755e16ae50899f6bd7b788654e85a20613.exe
    • Size 421KB
    • SHA256 02eac2d8c04bfbabf5285b5fb1badf755e16ae50899f6bd7b788654e85a20613
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    stealcvidardiscoveryspywarestealer

    • Detect Vidar Stealer

      stealer

    • Stealc

      Stealc is an infostealer written in C++.

      stealerstealc

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

      stealervidar

    • 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 binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • Detects executables containing potential Windows Defender anti-emulation checks

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

      spywarestealer

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Checks installed software on the system

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

      discovery

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks