General

  • Target

    Desktop.zip

  • Size

    809KB

  • Sample

    221208-xeyj1adh5z

  • MD5

    f7557a6d1ead807912e3749795106cdc

  • SHA1

    7dd52b99c7842578341739d211097bbb2fbe6b84

  • SHA256

    81522724d0ca28989c5dd4bd6ed52c5461ba53ddee27b569246fa59bd9af13a3

  • SHA512

    f5910bfc07271e6d8d601280e38cd90d7e5edaf4ab6c8a51908ddf04321642c8c9bbed31e4c9ff4e49ff70297a2ade9f7db086952b38085c7a48fe43854db233

  • SSDEEP

    12288:ESugTZImK0tC3MZokmP5yN2K2nnaC2VizF4Wvo0/q1gwoAniNQDcLb1OGgsckvRn:EtgdIqgMFqqIaC2VizBmpo8gGqpn

Score
10/10

Malware Config

Extracted

Family

bumblebee

Botnet

0712

C2

192.254.79.122:443

139.177.146.25:443

104.219.233.145:443

rc4.plain

Targets

    • Target

      Page.bat

    • Size

      2KB

    • MD5

      8d0a03154bbe82f6041790b08baf39c3

    • SHA1

      c0b78b03e2ba9400cad4ec70d3187fd18c3f958f

    • SHA256

      45ef129aa15193c634cc8badd659c7e400282ecc4759713622a965264b130a05

    • SHA512

      ea1387e77db42b1b3e77013ae5b3aacd89f0d3aaba98c16865a7eac0532027e8c2b320b4ccb212e04d4601fbf2db4a396999bda30fde3adb9527eeb87b86dd67

    Score
    3/10
    • Target

      aboutUs.dll

    • Size

      1.5MB

    • MD5

      829e1ae91a3362f708f6e9a9222279ed

    • SHA1

      ae505fd299c6c75660f88c8710b00f1ab8d42766

    • SHA256

      f70cbdde53a4bacee3410caf7666f303e6958f8d1d0fb678afbfa1093e38b4cb

    • SHA512

      030226487b6d3ae2c53ff9729be731f692c798208e25024ea914cee14e9bfcc2edc94b31a54e355fcef93d6ee5d8c5a260b3621170a6b3b09f6553984eaf1299

    • SSDEEP

      24576:rgKYrq1rE7F3C9oqxmLJL+bomVWFuf3qj8r3d1fyMJu3n9HGPXUtOZEkTuuqW:UKXQyKDLd+omgFuXJutHsnL

    Score
    10/10
    • BumbleBee

      BumbleBee is a webshell malware written in C++.

    • Blocklisted process makes network request

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Target

      document01.lnk

    • Size

      1KB

    • MD5

      c6f1fecaca46ba66f28625f252db236c

    • SHA1

      9078d131c23cdb9ca4839553b1052e12e4fc55e0

    • SHA256

      fbaa8b0ce2175c7a36192b7d4d35b359b344a37a2c2ce1460b7393f21ac8c05a

    • SHA512

      c741047eba96ce3596b0198d81abfa17d53a2a9dce3973ef057f1cfacea537ae13e9f51be30c8ac4d0ee93914905a881a3e498b65ee1a206821a3553a6a21462

    Score
    8/10
    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

MITRE ATT&CK Enterprise v6

Tasks