General

  • Target
    Desktop.zip
  • Size 1.2MB
  • Sample220526-t3xe3ahack
  • SHA256 0e859acbd03e59eae287b124803ec052cf027b519e608c7ccfd920044b9ee1c7
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • bumblebee

Botnet
  • 2lg5

C2
  • 23.254.229.131:443

  • 79.110.52.71:443

  • 51.75.62.99:443

rc4.plain

Targets

    • Target
      Desktop.zip
    • Size 1.2MB
    • SHA256 0e859acbd03e59eae287b124803ec052cf027b519e608c7ccfd920044b9ee1c7
    • MD5 SHA1 SHA512
    Score
    1/10
    • Target
      7za.exe
    • Size 574KB
    • SHA256 c136b1467d669a725478a6110ebaaab3cb88a3d389dfa688e06173c066b76fcf
    • MD5 SHA1 SHA512
    Score
    1/10
    • Target
      New Folder.lnk
    • Size 1KB
    • SHA256 315b3d80643da454b40cc938a0e8794f90ccbd05868e55b4848cacbf047850ae
    • MD5 SHA1 SHA512
    • 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.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

    • Target
      arch.7z
    • Size 929KB
    • SHA256 7b3e94fd74a6d597b6cd20fb40d56ebaf328dbe2f3df38960e4c31fe2a5b9ef4
    • MD5 SHA1 SHA512
    Score
    3/10

MITRE ATT&CK Enterprise v6

Tasks