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Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25/01/2025, 19:29

General

  • Target

    1cb5a19ee0b31b54658358590067ef7a2ff6aa066383c75754ca8df7a8a194cf.exe

  • Size

    1.8MB

  • MD5

    36c97fee4221becab44a8e2a0cd26271

  • SHA1

    1f0c71bac470518971af2d60012d7710f3f35dc3

  • SHA256

    1cb5a19ee0b31b54658358590067ef7a2ff6aa066383c75754ca8df7a8a194cf

  • SHA512

    b60b0d022614ebbbaea0a3047b20b7f8361d7720cd087aea6e9272bdbaedb961b8b19997d35bc6bb4fc97ac200226791d45d8fe48a81a41563e82f83d7ac87f5

  • SSDEEP

    49152:6HXc6mDkJBHOg6jCgu0sk4h0UnTAo6gtFbpQ4:63c6mO36/xsk4hLnTp6grb3

Malware Config

Extracted

Family

stealc

Botnet

brat

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

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

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

  • 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.

  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1cb5a19ee0b31b54658358590067ef7a2ff6aa066383c75754ca8df7a8a194cf.exe
    "C:\Users\Admin\AppData\Local\Temp\1cb5a19ee0b31b54658358590067ef7a2ff6aa066383c75754ca8df7a8a194cf.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2136 -s 932
      2⤵
      • Program crash
      PID:2656

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2136-0-0x0000000000880000-0x0000000000F33000-memory.dmp

    Filesize

    6.7MB

  • memory/2136-1-0x0000000077050000-0x0000000077052000-memory.dmp

    Filesize

    8KB

  • memory/2136-2-0x0000000000881000-0x0000000000898000-memory.dmp

    Filesize

    92KB

  • memory/2136-3-0x0000000000880000-0x0000000000F33000-memory.dmp

    Filesize

    6.7MB

  • memory/2136-4-0x0000000000880000-0x0000000000F33000-memory.dmp

    Filesize

    6.7MB

  • memory/2136-5-0x0000000000880000-0x0000000000F33000-memory.dmp

    Filesize

    6.7MB

  • memory/2136-6-0x0000000000880000-0x0000000000F33000-memory.dmp

    Filesize

    6.7MB

  • memory/2136-7-0x0000000000880000-0x0000000000F33000-memory.dmp

    Filesize

    6.7MB

  • memory/2136-8-0x0000000000880000-0x0000000000F33000-memory.dmp

    Filesize

    6.7MB

  • memory/2136-9-0x0000000000880000-0x0000000000F33000-memory.dmp

    Filesize

    6.7MB

  • memory/2136-10-0x0000000000880000-0x0000000000F33000-memory.dmp

    Filesize

    6.7MB

  • memory/2136-11-0x0000000000880000-0x0000000000F33000-memory.dmp

    Filesize

    6.7MB