Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2024 20:54

General

  • Target

    file.exe

  • Size

    4.3MB

  • MD5

    4500ada3f3ca96c5a4c012d41ecb92e6

  • SHA1

    688d9fbf419423ec29c4037dc04a975475936c33

  • SHA256

    e7a83ddae3eec8ce624fc138e1dddb7f3ff5c5c9f20db11f60e22f489bdcc947

  • SHA512

    95102061505fa16f5bfe89d32001b75b4e353cd3fce2381045dbabb46db42299c8049bdec0e3b0dd376043c59a52f71e3e9d29fdd85c4b7db056697c1e4a50be

  • SSDEEP

    98304:pJJUaXAY2JwKhR14eM+rNKNhuVEpTebunratQe7FOxz:fXn2JwreM71TebGra

Malware Config

Extracted

Family

cryptbot

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 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.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
    PID:1996
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1996 -s 1136
      2⤵
      • Program crash
      PID:1892
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 1996 -ip 1996
    1⤵
      PID:4400

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1996-0-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-1-0x0000000077854000-0x0000000077856000-memory.dmp

      Filesize

      8KB

    • memory/1996-2-0x00000000002F1000-0x0000000000575000-memory.dmp

      Filesize

      2.5MB

    • memory/1996-3-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-4-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-5-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-6-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-7-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-8-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-9-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-10-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-11-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-12-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-13-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-14-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-15-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-16-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-17-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-18-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB

    • memory/1996-19-0x00000000002F0000-0x0000000000FC8000-memory.dmp

      Filesize

      12.8MB