Analysis

  • max time kernel
    92s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    16/06/2022, 16:12

General

  • Target
    information.dll
  • Size 2.0MB
  • Sample220616-tng2tsfhfl
  • SHA256 fed9bc8df9141f8f8f7a9203bc26b5b22123c154702fcd625379f2f7ecd31cb2
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • bumblebee

Botnet
  • 146l

C2
  • 242.165.212.79:339

  • 162.144.249.150:239

  • 63.122.120.151:268

  • 144.52.138.51:193

  • 18.215.29.142:436

  • 115.239.67.202:380

  • 255.11.235.99:426

  • 213.203.201.199:307

  • 143.117.20.123:425

  • 141.98.168.70:443

  • 174.150.214.40:426

  • 133.133.249.24:204

  • 126.68.7.249:422

  • 103.175.16.107:443

  • 146.70.124.77:443

  • 154.56.0.100:443

  • 180.184.129.160:223

  • 28.78.74.145:427

  • 108.28.254.44:399

  • 115.103.22.1:153

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 behavior: EnumeratesProcesses 64 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\information.dll,#1
    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 behavior: EnumeratesProcesses
    PID:2912

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2912-131-0x0000026954520000-0x0000026954637000-memory.dmp

        memory/2912-132-0x00007FFC80BE0000-0x00007FFC80BF0000-memory.dmp