Overview

overview

10

Static

static

3

a1f72ace56...9e.exe

windows7-x64

10

a1f72ace56...9e.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2024 12:50

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General

  • Target

    a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe

  • Size

    2.0MB

  • MD5

    87277a0d994ac32ad7face28aa20af74

  • SHA1

    9ab1a409fd2de2d0b92b039a935e5ad82dec312e

  • SHA256

    a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e

  • SHA512

    802af869d04d60ae57d51ee714182a2f5ec6fd433aceb7b9bc177378bc92ae362f0dbcbe8f00bf4119498b26ead52e672257dca7b6b33ea75fb125981b640e99

  • SSDEEP

    49152:91WlPp91QzU47srSc7gupSbMP62QMnmSXKgwgSwcKavk1d:9AlP1QI47QTbSSrlnmCKg8n3Wd

Score
10/10
stealctalecredential_accessdiscoveryevasionspywarestealer

Malware Config

Extracted

Family

stealc

Botnet

tale

C2

http://185.215.113.206

Attributes
  • url_path

    /6c4adf523b719729.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

    stealerstealc
  • Stealc family
    stealc
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    evasion
  • Loads dropped DLL 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

    credential_accessstealer
  • 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 NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks processor information in registry 2 TTPs 2 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe
    "C:\Users\Admin\AppData\Local\Temp\a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4232
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\a1f72ace562fe93d1680da7c054696d89785286e21112f3b528cf8bcfa23ae9e.exe" & del "C:\ProgramData\*.dll"" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4448
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4496

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\chrome.dll
    Filesize

    676KB

    MD5

    eda18948a989176f4eebb175ce806255

    SHA1

    ff22a3d5f5fb705137f233c36622c79eab995897

    SHA256

    81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4

    SHA512

    160ed9990c37a4753fc0f5111c94414568654afbedc05308308197df2a99594f2d5d8fe511fd2279543a869ed20248e603d88a0b9b8fb119e8e6131b0c52ff85

    Download Submit

  • memory/4232-0-0x0000000000C30000-0x000000000135C000-memory.dmp

    Filesize

    7.2MB

    Download

  • memory/4232-1-0x0000000077B74000-0x0000000077B76000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4232-2-0x0000000000C31000-0x0000000000C99000-memory.dmp

    Filesize

    416KB

    Download

  • memory/4232-3-0x0000000000C30000-0x000000000135C000-memory.dmp

    Filesize

    7.2MB

    Download

  • memory/4232-10-0x0000000000C30000-0x000000000135C000-memory.dmp

    Filesize

    7.2MB

    Download