Overview

overview

10

Static

static

3

820a177b58...5f.exe

windows7-x64

10

820a177b58...5f.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2024 08:36

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General

  • Target

    820a177b585f0a50c430e1b2ac66467cda0d96eb80b8e39ddf23079c8f2c685f.exe

  • Size

    2.0MB

  • MD5

    8dec1786c8e709701d60fdd14c78ba23

  • SHA1

    e3496e09e22571195377f9c3e8a55c4b31496b86

  • SHA256

    820a177b585f0a50c430e1b2ac66467cda0d96eb80b8e39ddf23079c8f2c685f

  • SHA512

    4892ea3642325dfb7b49b0c5caa731b9db8b5f37e28ea21d58975be672bb268a5565b60c1b5dcaf1b3c240c61c5eaf92a8983da62bc05a0c43c08536cc809bc3

  • SSDEEP

    49152:6Ig8rFJgWA1FOigKan2Ze5uunv4ne+vXb4SPESLs9e7P/:k8rF2AKa0g4ne+vTLJ7P/

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\820a177b585f0a50c430e1b2ac66467cda0d96eb80b8e39ddf23079c8f2c685f.exe
    "C:\Users\Admin\AppData\Local\Temp\820a177b585f0a50c430e1b2ac66467cda0d96eb80b8e39ddf23079c8f2c685f.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:1600
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\820a177b585f0a50c430e1b2ac66467cda0d96eb80b8e39ddf23079c8f2c685f.exe" & del "C:\ProgramData\*.dll"" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4440
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3240

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/1600-0-0x0000000000A50000-0x0000000001189000-memory.dmp

    Filesize

    7.2MB

    Download

  • memory/1600-1-0x00000000774E4000-0x00000000774E6000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1600-2-0x0000000000A51000-0x0000000000AB9000-memory.dmp

    Filesize

    416KB

    Download

  • memory/1600-3-0x0000000000A50000-0x0000000001189000-memory.dmp

    Filesize

    7.2MB

    Download

  • memory/1600-9-0x0000000000A50000-0x0000000001189000-memory.dmp

    Filesize

    7.2MB

    Download