Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 01:27

General

  • Target

    0924a04e22be1339356c24b69b2e75516c56b0b23aa500e9068b9c28c54dd5b9.exe

  • Size

    4.3MB

  • MD5

    84e0e622857460da96501532a233c862

  • SHA1

    a83b246ef32b7a66a8cbbc54edd3bb667f956b9b

  • SHA256

    0924a04e22be1339356c24b69b2e75516c56b0b23aa500e9068b9c28c54dd5b9

  • SHA512

    db686ccaa7ed5c1707f18a9482257ad1b1f9101be0d3e975b4aa18f6eec5ed1860aa881b21f9c8265a0ac58c39becf433fff98de874c364b9953eb542f12d1ce

  • SSDEEP

    98304:Sbmf0HEYlXEh8T9Vp33Jp5JdJ9PRpyOnb+tQUAFPJNpzBgyX2+HlDuAw8TV:MrkYtK8Z33ZpX3tndnqCPDFGW2UUMp

Malware Config

Extracted

Family

cryptbot

C2

http://home.fivetk5vt.top/hLfzXsaqNtoEGyaUtOMJ1734

Signatures

  • CryptBot

    CryptBot is a C++ stealer distributed widely in bundle with other software.

  • Cryptbot family
  • Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0924a04e22be1339356c24b69b2e75516c56b0b23aa500e9068b9c28c54dd5b9.exe
    "C:\Users\Admin\AppData\Local\Temp\0924a04e22be1339356c24b69b2e75516c56b0b23aa500e9068b9c28c54dd5b9.exe"
    1⤵
    • Enumerates VirtualBox registry keys
    • 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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2640
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 652
      2⤵
      • Program crash
      PID:404

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2640-0-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-1-0x0000000077470000-0x0000000077472000-memory.dmp

    Filesize

    8KB

  • memory/2640-2-0x00000000008C1000-0x0000000000B46000-memory.dmp

    Filesize

    2.5MB

  • memory/2640-3-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-4-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-5-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-6-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-7-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-8-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-9-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-10-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-11-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-12-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-13-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-14-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-15-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-16-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-17-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-18-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB

  • memory/2640-19-0x00000000008C0000-0x00000000014B4000-memory.dmp

    Filesize

    12.0MB