Overview

overview

10

Static

static

3

0a456f0fee...74.exe

windows7-x64

3

0a456f0fee...74.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    129s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 01:04

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General

  • Target

    0a456f0fee171826bb44c9c2e1d5e7b95c0862b67d9dd75a843dec035224bb74.exe

  • Size

    355KB

  • MD5

    f4fb6b518e2e550467f533124e1f80f4

  • SHA1

    964e735dd9410e07536e46b9f50c65fed148bcd7

  • SHA256

    0a456f0fee171826bb44c9c2e1d5e7b95c0862b67d9dd75a843dec035224bb74

  • SHA512

    4a02aa8aa87dab5d6aa14da695f71aa424b95bc4437c3b8353ac355e0a73f68ded2df49e6e2ca8af6e9389745861a78a7343ab4838a6584a1108e18525d5984a

  • SSDEEP

    6144:+vFPlgMF6peZUqbWFROY1NiXKvtuTx5qPmOGDe+VNfyhr24L25rQXxSXQMR23M:+9PlgMFgxy2u15emOqVNL4LQriM

Score
10/10
stealcvidardiscoveryspywarestealer

Malware Config

Extracted

Family

stealc

rc4.plain

Signatures

  • Detect Vidar Stealer 11 IoCs
    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. 8 IoCs
  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 8 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 11 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 8 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 11 IoCs
  • Detects executables containing potential Windows Defender anti-emulation checks 11 IoCs
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
    spyware
  • Checks installed software on the system 1 TTPs

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

    discovery
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a456f0fee171826bb44c9c2e1d5e7b95c0862b67d9dd75a843dec035224bb74.exe
    "C:\Users\Admin\AppData\Local\Temp\0a456f0fee171826bb44c9c2e1d5e7b95c0862b67d9dd75a843dec035224bb74.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:372
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Checks computer location settings
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3132
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\CFCBFBGDBKJK" & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3940
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • Delays execution with timeout.exe
          PID:4384

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/372-0-0x0000000000C20000-0x0000000000C21000-memory.dmp

    Filesize

    4KB

    Download

  • memory/372-2-0x0000000000C20000-0x0000000000C21000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3132-1-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

    Download

  • memory/3132-6-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

    Download

  • memory/3132-4-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

    Download

  • memory/3132-15-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

    Download

  • memory/3132-16-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

    Download

  • memory/3132-18-0x000000001B770000-0x000000001B9CF000-memory.dmp

    Filesize

    2.4MB

    Download

  • memory/3132-33-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

    Download

  • memory/3132-34-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

    Download

  • memory/3132-50-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

    Download

  • memory/3132-51-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

    Download

  • memory/3132-62-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

    Download

  • memory/3132-63-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

    Download