General

  • Target

    ta578_20220614_documentISO.zip

  • Size

    929KB

  • Sample

    220614-zzb8lshcc6

  • MD5

    97e22d99210b2103dc1e61fe513dcad9

  • SHA1

    d56f11bfe59bb8592604418b50a80b8d26d18840

  • SHA256

    00aecfcff910d6e767aa8990f929a5c7cb0d78c1226302ba496cbd4d98147266

  • SHA512

    62d2a2ffdf0fc4922658482e54c03c6312992d48ec1ff1f948720300f0d91022cf7a3a07513732dc00f3a1db4f57dc70762acc959421c3abeea83dfe2db86132

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

      documents.lnk

    • Size

      2KB

    • MD5

      fd76759f202a3f3651d445f022a8f308

    • SHA1

      47daf80efb7af421f01f7af22ed367f52695645d

    • SHA256

      7ea93d3194137b5e8e11609733b6d1dbefda22cc1e129e25a06e8623f2bbc3e3

    • SHA512

      f56b94e835d02d2fdb20f35022599584de23631cb7b5eeab52b68522404d5e7f82c9a8964d866b920314c0546ddaf4bd563a3b48e9cd5596e0777c656f75f3c2

    • 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.

    • Target

      toso3l.dll

    • Size

      1.7MB

    • MD5

      bf7b0dc1ad9a446d29f68c56c36bfac0

    • SHA1

      6ffb70424b7cefd48c225406782e6f696a6890df

    • SHA256

      209f9adfa52fc4c4e143d793441c91f101214e7eca2b49be32b5fa8995f5cfec

    • SHA512

      f50b9b765df015c79693bcce9b07d2550e3597e005b2c26c0529ce2115b0bc11cdeeea5017822f6649ad183001d6097c1ff1f64c0187cdc3d542889532a8d8de

    • 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