Overview

overview

10

Static

static

3

718f3ddfb3...27.exe

windows7-x64

3

718f3ddfb3...27.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    140s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 01:50

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General

  • Target

    718f3ddfb33000759e207ae9f4b3118b34ce44f794749993f660fdcdf4dab027.exe

  • Size

    423KB

  • MD5

    5afb193b8db7087705eca19e6fd17350

  • SHA1

    961d484614c96070af1d5ba640899f4f95b64bba

  • SHA256

    718f3ddfb33000759e207ae9f4b3118b34ce44f794749993f660fdcdf4dab027

  • SHA512

    197c06628f4b2f2298639a77116a886e949cea574f86d217eed7421430fa7f02504bb9a2e1c6a29a0b2d306d12c7fbd1e3ecbeef60fcedc67cd6bb25c42709c7

  • SSDEEP

    6144:0qiuRraHLIo4V1p+a3VyZJ1PGor3dz1UKwETicnDQNk3KRks2P4f3P5CDaZwAZB6:6HLIoCo1zzNiKwEjnMCKRdH5o1AZm

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 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\718f3ddfb33000759e207ae9f4b3118b34ce44f794749993f660fdcdf4dab027.exe
    "C:\Users\Admin\AppData\Local\Temp\718f3ddfb33000759e207ae9f4b3118b34ce44f794749993f660fdcdf4dab027.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:1092
      • 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:1616
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\HIDHDAAEHIEH" & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1816
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • Delays execution with timeout.exe
            PID:1272

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • memory/1084-0-0x00000000012D0000-0x00000000012D1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1084-1-0x00000000012D0000-0x00000000012D1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1084-3-0x00000000012D0000-0x00000000012D1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1616-2-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

      Download

    • memory/1616-7-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

      Download

    • memory/1616-6-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

      Download

    • memory/1616-14-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

      Download

    • memory/1616-15-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

      Download

    • memory/1616-17-0x000000001B630000-0x000000001B88F000-memory.dmp

      Filesize

      2.4MB

      Download

    • memory/1616-32-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

      Download

    • memory/1616-33-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

      Download

    • memory/1616-49-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

      Download

    • memory/1616-50-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

      Download

    • memory/1616-64-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

      Download

    • memory/1616-65-0x0000000000400000-0x0000000000646000-memory.dmp

      Filesize

      2.3MB

      Download