General

  • Target

    7599816191.zip

  • Size

    949KB

  • Sample

    220629-yg5a1aebf7

  • MD5

    20284615aee0b0f989e349a019074465

  • SHA1

    f8547905e5c51adf9fd1a76ee755e6ca5182b92a

  • SHA256

    cdc348510e44b05b31c36e8171c2a56d114a7981eb55e29e268cce72c4ff3f59

  • SHA512

    7f488191629eaaf5ca46be4b91b5c8d905199b7f11d897fb7e2d5ff59cc4a0cda8dd77b856a01b01a22cb9f0640e3450c4f918b2084842ba87f8392dd5111621

Malware Config

Extracted

Family

bumblebee

Botnet

296a

C2

218.17.34.195:107

108.62.118.145:443

195.193.46.112:234

224.8.125.117:383

174.230.203.32:222

159.248.111.91:306

195.86.112.33:266

140.112.120.134:115

222.137.120.137:146

56.248.40.53:437

83.249.212.150:127

2.100.7.120:332

134.76.108.38:304

61.213.140.44:487

174.58.214.252:228

229.192.93.82:321

40.47.149.113:157

95.46.196.232:438

77.180.42.62:122

42.104.196.184:489

rc4.plain

Targets

    • Target

      d04578d91b1921355bfa4ba691a6f91b6e896a84efd33b389451488c56be63b7

    • Size

      1.5MB

    • MD5

      2edde858ea2eefa639ea23a7d63e5fa9

    • SHA1

      448d8434c7b7265aa4fe2004d9a83add9583ee6b

    • SHA256

      d04578d91b1921355bfa4ba691a6f91b6e896a84efd33b389451488c56be63b7

    • SHA512

      ace5e65085ac71e7b06a5065d8f5df881f69ee7bdcc62b9c829487dbd76c951e831bccbc93fbb4e7559b7b62f52d7a01ded4ee13327012b2006215ac1ddb9213

    • 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.

    • Suspicious use of NtCreateThreadExHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks