Analysis

  • max time kernel
    140s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-12-2024 13:58

General

  • Target

    efd7bbaba8aa8e6865430d1ffcfbf2d5.exe

  • Size

    4.3MB

  • MD5

    efd7bbaba8aa8e6865430d1ffcfbf2d5

  • SHA1

    a9c1b894dc0628909524f21c2b8da3d80d4d1725

  • SHA256

    044837966b88050aafba12d5765a42768de8b1b55cd83a274df9a0fcf17fede2

  • SHA512

    eacc546270f7cc56567b2003ff0274ec063f756dda74a523a571be93197ae09167b37e6e644e67f586bbd23d4645684d00f5e5be28f991dc19e6fcd281957fd9

  • SSDEEP

    98304:f9BerfMdJtZSrZBU0/2pF+TTwmddqkqNhoJKs5L:f9SMqYAqmdgNhoM

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
  • 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\efd7bbaba8aa8e6865430d1ffcfbf2d5.exe
    "C:\Users\Admin\AppData\Local\Temp\efd7bbaba8aa8e6865430d1ffcfbf2d5.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:2896

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2896-0-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-1-0x00000000777C4000-0x00000000777C6000-memory.dmp

    Filesize

    8KB

  • memory/2896-2-0x0000000000271000-0x00000000004FA000-memory.dmp

    Filesize

    2.5MB

  • memory/2896-3-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-4-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-5-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-6-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-7-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-8-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-9-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-10-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-11-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-12-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-13-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-14-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-15-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-16-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-17-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-18-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-19-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-20-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-21-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-22-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-23-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB

  • memory/2896-24-0x0000000000270000-0x0000000000EB7000-memory.dmp

    Filesize

    12.3MB