General

  • Target

    TA580_wetransfer_20221107.zip

  • Size

    658KB

  • Sample

    221107-zyk45abgfn

  • MD5

    2e9f659a0ef0ccfc0f446aab66ddf852

  • SHA1

    3ca942451e687eab63b8d312d121e16cdbf2775a

  • SHA256

    18ab01e312f13b5dcf847ffce6f2536083c24d7ed2195ddb84b5c106ff11fc24

  • SHA512

    48993b12a1dff9219136edd8e9b58406f3ea469a38207432cdafdbe83bd2fb05c9cc0b2ca57a133e369344b1625f30f511a51ff036e39eceaeee17db53cec631

  • SSDEEP

    12288:W6RJi7jKYyoID0RiRbqboI6TLWAiqslQwxJ7GQguwxB2/kh5EaxY:5i7jyoIDmiZRLWBlVxlGbThtC

Score
10/10

Malware Config

Extracted

Family

bumblebee

Botnet

0711

C2

85.239.52.15:443

85.239.54.192:443

85.239.52.113:443

rc4.plain

Targets

    • Target

      PDbfQsNCbKysMm.bat

    • Size

      1KB

    • MD5

      e41202ae491aedc10e4ee319a045be15

    • SHA1

      2f719f9c05f92c31135b75da8e6e803b71843c05

    • SHA256

      bad4aed36b4167a0f00a72f8598cc9dab2069e0f908be9b58b72d10690aea622

    • SHA512

      82dff15c383a23592b3e3d00ccc85d4bebf61e4821ebe8b855ddfd0a3ae953a49b791d3e57537ae255990d9956a6284820b67c6da105e10be7e730078a28a1fc

    Score
    10/10
    • BumbleBee

      BumbleBee is a webshell malware written in C++.

    • Blocklisted process makes network request

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Target

      mGntZOOiFtyWBy.dll

    • Size

      1014KB

    • MD5

      4fc0a4bb857934789000a50d2572e56a

    • SHA1

      725ffb5fe4eaa20ae9b57dac84fb02274ec0848c

    • SHA256

      9e2a0a55c788042a74ddc0762dd0c67af007e38784ffee7beaa7607a4a14e4b8

    • SHA512

      18a34d220ece8d204637fd4377a4bdf07fbafa52cd727dd55d6fca656cbbcc8bfc9dac13f3864a1938cb1973487320be864d060763a7fd55c83276aedcd5f771

    • SSDEEP

      12288:CkoTtCovN3LtbV5RCQXJa8STs7AsB3/vp3E2PuHQ1:sCovp5HJaJsRPvp05w

    Score
    1/10
    • Target

      project details.lnk

    • Size

      995B

    • MD5

      d9257c75c3196e49489be81a63e04cc9

    • SHA1

      0caa3985f40ff5eb0c6d590d29654d226669578d

    • SHA256

      3a988ed0f3b6dbc49f1e44be071df149c32cb5133c7bad96898ca3cbbf93d83b

    • SHA512

      b4eaf6b098c05af6a0d50824e79ded405837e61e4bbdb1a93b802f1f30bc35a14af5db4997d4eb12d77c68f67e6f81ba38047bcd937807949a842d099935a709

    Score
    10/10
    • BumbleBee

      BumbleBee is a webshell malware written in C++.

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Suspicious use of NtCreateThreadExHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks