Analysis

  • max time kernel
    40s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    15-09-2022 11:28

General

  • Target

    9n3.dll

  • Size

    2.5MB

  • MD5

    7c3eacc5af118753850b18ed37aec4fd

  • SHA1

    15e1cd059e3cb6d6e63bd2c7718844b917f42705

  • SHA256

    3ecd8e4cab18d088b8394b6880fb00e6d17d8fe19ba2b0f7f7abd9cb738a3f54

  • SHA512

    db731a0a387e8cecc499ef90415ddee213526f4fffe2fc0394855b77b1602f2cfbd0817031a1bc47d8650d84e0268baeb27f3ffdd72a1ab26c52080b664e6a09

  • SSDEEP

    49152:EY8+6OwVQpMQ08Fk1BGrXN3fLXZOMU9EeF2gYNpJsv9:Eg6OXp0KC0rXptVeum

Malware Config

Extracted

Family

bumblebee

Botnet

VPS1

C2

45.147.229.23:443

Signatures

  • BumbleBee

    BumbleBee is a webshell malware written in C++.

  • 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
  • Looks for VMWare Tools registry key 2 TTPs 1 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.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\9n3.dll,#1
    1⤵
    • Enumerates VirtualBox registry keys
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious behavior: EnumeratesProcesses
    PID:2024

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2024-54-0x0000000001EC0000-0x000000000210D000-memory.dmp

    Filesize

    2.3MB