General

  • Target

    sec.dll

  • Size

    1.7MB

  • Sample

    220628-2v2zkschgl

  • MD5

    a30bf883c38b54c3b22a2f8ccfb1bd8a

  • SHA1

    9a5ec009753040c5214b864d9d271901eb4542ac

  • SHA256

    95a6114c8b9879ebc9a0142fcd46d41dd428380a27d5b396a232f42e4a505fb2

  • SHA512

    64d3f30c8564e4eedecd7f3f8c3b1eafaa3d781fb5bef39825ea1b8fdd1f39c38ac477f08a7a147fcb2f404c32ded7ae841b5bb443070945e1aa60668838ed58

Malware Config

Extracted

Family

bumblebee

Botnet

286a

C2

40.126.50.56:271

185.62.58.175:443

3.27.187.15:317

28.236.100.216:424

75.72.64.79:334

156.148.26.226:446

104.83.15.21:107

199.236.144.121:106

6.23.156.239:194

211.73.200.45:129

240.230.245.154:407

209.141.58.141:443

35.225.143.246:179

212.151.132.229:145

163.192.104.228:409

138.84.254.103:385

52.100.187.210:219

74.205.65.255:245

233.96.129.4:276

114.35.182.27:323

rc4.plain

Targets

    • Target

      sec.dll

    • Size

      1.7MB

    • MD5

      a30bf883c38b54c3b22a2f8ccfb1bd8a

    • SHA1

      9a5ec009753040c5214b864d9d271901eb4542ac

    • SHA256

      95a6114c8b9879ebc9a0142fcd46d41dd428380a27d5b396a232f42e4a505fb2

    • SHA512

      64d3f30c8564e4eedecd7f3f8c3b1eafaa3d781fb5bef39825ea1b8fdd1f39c38ac477f08a7a147fcb2f404c32ded7ae841b5bb443070945e1aa60668838ed58

    • 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.

MITRE ATT&CK Enterprise v6

Tasks