General

  • Target
    iso.iso
  • Size 4.2MB
  • Sample220912-y9xfvsebc4
  • SHA256 033099c84bf080da3cae5075180d513861b9b993fef92ff948673ac8e7b23f19
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • bumblebee

Botnet
  • 1209

C2
  • 142.11.211.32:443

  • 146.59.116.49:443

  • 192.236.155.219:443

rc4.plain

Targets

    • Target
      iso.iso
    • Size 4.2MB
    • SHA256 033099c84bf080da3cae5075180d513861b9b993fef92ff948673ac8e7b23f19
    • MD5 SHA1 SHA512 SSDEEP
    • BumbleBee

      BumbleBee is a webshell malware written in C++.

    • 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

      BIOS information is often read in order to detect sandboxing environments.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Suspicious use of NtCreateThreadExHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks