Analysis

  • max time kernel
    140s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2022, 09:52

General

  • Target
    2510c_cr69.exe
  • Size 2.7MB
  • Sample221107-lv22ksaea2
  • SHA256 aea6933430252325e7bec04d778064ff973a4db0d7dd237622efca5ad1f7db20
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • bumblebee

Botnet
  • 2510

C2
  • 69.46.15.158:443

  • 135.125.241.35:443

  • 172.86.120.141:443

rc4.plain

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
  • 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 use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2510c_cr69.exe
    "C:\Users\Admin\AppData\Local\Temp\2510c_cr69.exe"
    1⤵
    • Enumerates VirtualBox registry keys
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Looks for VirtualBox Guest Additions in registry
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtCreateThreadExHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:4640

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/4640-132-0x0000024649F00000-0x000002464A053000-memory.dmp

        memory/4640-133-0x0000024649DB0000-0x0000024649EFF000-memory.dmp