General

  • Target

    document.iso

  • Size

    3.1MB

  • Sample

    220614-wfjlssgcgq

  • MD5

    8b76eb981cb9a08767a93f1c3bdbf3df

  • SHA1

    4d558beaaa7af0e1232fe8d5436f7be0dd674660

  • SHA256

    23c10f0ff64c3161ac221e9cd6eae744b3260f0ac346cca4cc7afa770b60c0da

  • SHA512

    4ea530db2356f434bc7f879926d8ee7a0f4515fa203d576ae7141d7d18477510a7e84049f5aabb350ee10c8315bb9a4cba6e61eee578ddbb553cb37386b13955

Malware Config

Extracted

Family

bumblebee

Botnet

1406r

C2

39.57.152.217:440

69.161.201.181:382

244.6.154.71:111

193.233.203.156:443

221.106.84.123:307

194.135.33.148:443

111.99.39.11:387

223.243.46.133:147

48.165.175.199:316

78.89.31.86:229

157.17.142.85:406

90.81.8.16:370

21.29.238.98:209

154.56.0.252:443

103.175.16.108:443

188.57.4.52:357

15.209.19.148:466

160.70.24.228:486

33.145.184.132:240

235.126.132.170:106

rc4.plain

Targets

    • Target

      document.iso

    • Size

      3.1MB

    • MD5

      8b76eb981cb9a08767a93f1c3bdbf3df

    • SHA1

      4d558beaaa7af0e1232fe8d5436f7be0dd674660

    • SHA256

      23c10f0ff64c3161ac221e9cd6eae744b3260f0ac346cca4cc7afa770b60c0da

    • SHA512

      4ea530db2356f434bc7f879926d8ee7a0f4515fa203d576ae7141d7d18477510a7e84049f5aabb350ee10c8315bb9a4cba6e61eee578ddbb553cb37386b13955

    • 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

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Registers COM server for autorun

    • 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

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

MITRE ATT&CK Enterprise v6

Tasks