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Analysis

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

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27/01/2025, 04:34

General

  • Target

    b0ba827719a2481183cec325d9daca05c0c0f88f7dba1a9f5a0d5a8efa0259aa.exe

  • Size

    1.7MB

  • MD5

    9bbce4f97ec6ce722de9ad3619b7c4e9

  • SHA1

    61672133522cab050ec53e3e7df875d4cf7634cc

  • SHA256

    b0ba827719a2481183cec325d9daca05c0c0f88f7dba1a9f5a0d5a8efa0259aa

  • SHA512

    1fe2654d02eee08008ecb0a7cf85180016f43cccd037d3418073a6ae1e24b1fa2c35d87da11d273da9f48a6daf48582037f3f2ebabfbea8c4011e741ff0fcdfb

  • SSDEEP

    49152:zptz7C7imX+0eBv22pzB1kUuoFolUgDZHItXwC:zpcWf22p5u201ItXw

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\b0ba827719a2481183cec325d9daca05c0c0f88f7dba1a9f5a0d5a8efa0259aa.exe
    "C:\Users\Admin\AppData\Local\Temp\b0ba827719a2481183cec325d9daca05c0c0f88f7dba1a9f5a0d5a8efa0259aa.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:2076
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 924
      2⤵
      • Program crash
      PID:2612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2076-0-0x00000000013E0000-0x0000000001A66000-memory.dmp

    Filesize

    6.5MB

  • memory/2076-1-0x00000000773D0000-0x00000000773D2000-memory.dmp

    Filesize

    8KB

  • memory/2076-2-0x00000000013E1000-0x00000000013F8000-memory.dmp

    Filesize

    92KB

  • memory/2076-3-0x00000000013E0000-0x0000000001A66000-memory.dmp

    Filesize

    6.5MB

  • memory/2076-4-0x00000000013E0000-0x0000000001A66000-memory.dmp

    Filesize

    6.5MB

  • memory/2076-5-0x00000000013E0000-0x0000000001A66000-memory.dmp

    Filesize

    6.5MB

  • memory/2076-6-0x00000000013E0000-0x0000000001A66000-memory.dmp

    Filesize

    6.5MB

  • memory/2076-7-0x00000000013E0000-0x0000000001A66000-memory.dmp

    Filesize

    6.5MB

  • memory/2076-8-0x00000000013E0000-0x0000000001A66000-memory.dmp

    Filesize

    6.5MB

  • memory/2076-9-0x00000000013E0000-0x0000000001A66000-memory.dmp

    Filesize

    6.5MB

  • memory/2076-10-0x00000000013E0000-0x0000000001A66000-memory.dmp

    Filesize

    6.5MB

  • memory/2076-12-0x00000000013E0000-0x0000000001A66000-memory.dmp

    Filesize

    6.5MB