Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-02-2025 00:42

General

  • Target

    6233c74d44b7206f00d9c86ccac29577e3ea5f4b8a4a8cf8faf64d159d0e10bd.dll

  • Size

    2.7MB

  • MD5

    4d9d368872e1d819968c6aba4938fd61

  • SHA1

    dc22a03c0bca99fef3a8e9e801fe9e43cda240be

  • SHA256

    6233c74d44b7206f00d9c86ccac29577e3ea5f4b8a4a8cf8faf64d159d0e10bd

  • SHA512

    ba176147280cfa54670c49befcc7f49ce50a4a41214718e647a1fe19ae4b61fce1fecd7785bb284a20f14523ff8d91a03e72a36f0e4703b5c284cc3f85070129

  • SSDEEP

    49152:ydhvtC1w3DBJXHUlz6b13GtTfOL7vPsBjLAgbIYETghETcltJf:ydysBVHWz6b13GtTfOL7vPsBjLAgbIYl

Malware Config

Extracted

Family

bumblebee

Botnet

ALL0604

C2

192.236.198.63:443

Signatures

  • BumbleBee

    BumbleBee is a loader malware written in C++.

  • Bumblebee family
  • Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Blocklisted process makes network request 6 IoCs
  • Checks BIOS information in registry 2 TTPs 3 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 for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\6233c74d44b7206f00d9c86ccac29577e3ea5f4b8a4a8cf8faf64d159d0e10bd.dll,#1
    1⤵
    • Enumerates VirtualBox registry keys
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Looks for VirtualBox Guest Additions in registry
    • Blocklisted process makes network request
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Checks for VirtualBox DLLs, possible anti-VM trick
    • Suspicious behavior: EnumeratesProcesses
    PID:4688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4688-0-0x00007FFDD5B2D000-0x00007FFDD5B2E000-memory.dmp

    Filesize

    4KB

  • memory/4688-1-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB

  • memory/4688-2-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB

  • memory/4688-7-0x00007FFDD5A90000-0x00007FFDD5C85000-memory.dmp

    Filesize

    2.0MB

  • memory/4688-6-0x00007FFDD5A90000-0x00007FFDD5C85000-memory.dmp

    Filesize

    2.0MB

  • memory/4688-5-0x00007FFDD5A90000-0x00007FFDD5C85000-memory.dmp

    Filesize

    2.0MB

  • memory/4688-4-0x00007FFDD5A90000-0x00007FFDD5C85000-memory.dmp

    Filesize

    2.0MB

  • memory/4688-3-0x00007FFDD5A90000-0x00007FFDD5C85000-memory.dmp

    Filesize

    2.0MB

  • memory/4688-8-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB

  • memory/4688-9-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB

  • memory/4688-10-0x00007FFDD5B2D000-0x00007FFDD5B2E000-memory.dmp

    Filesize

    4KB

  • memory/4688-11-0x00007FFDD5A90000-0x00007FFDD5C85000-memory.dmp

    Filesize

    2.0MB

  • memory/4688-12-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB

  • memory/4688-13-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB

  • memory/4688-14-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB

  • memory/4688-15-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB

  • memory/4688-16-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB

  • memory/4688-17-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB

  • memory/4688-18-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB

  • memory/4688-19-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB

  • memory/4688-20-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB

  • memory/4688-21-0x000001F290AA0000-0x000001F290CEB000-memory.dmp

    Filesize

    2.3MB