Resubmissions

09-10-2023 22:51

231009-2sy5xaha2t 10

19-04-2023 21:14

230419-z3esxafd2x 10

Analysis

  • max time kernel
    28s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    19-04-2023 21:14

General

  • Target

    outout.dll

  • Size

    1.4MB

  • MD5

    e7ee02d4c897e87048232a891e2a97f8

  • SHA1

    36ee65e12cc044d99fd0654d8f4792910b1a3046

  • SHA256

    39e300a5b4278a3ff5fe48c7fa4bd248779b93bbb6ade55e38b22de5f9d64c3c

  • SHA512

    8b1ecdab172e44c61c9b86785da76297f0c3c7eb68755149e9ca14a64ef39c581ee05e39c2fc98861260eaef848b2e542b59f34ef6844d3ef27ef5f758351fa1

  • SSDEEP

    24576:Eo10e/WhcerhA1HqikX3CUDA49JOOx2nP6c5P8hAlm3wKjHsElse:LUxhAxq7TDA4j7q55EhcGjHt

Malware Config

Extracted

Family

bumblebee

Botnet

cis21704

C2

149.3.170.185:443

192.254.79.106:443

103.175.16.149:443

23.108.57.117:443

209.141.58.129:443

21.253.40.63:443

199.195.249.67:443

rc4.plain

Signatures

  • BumbleBee

    BumbleBee is a webshell malware written in C++.

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\outout.dll,#1
    1⤵
    • Suspicious use of NtCreateThreadExHideFromDebugger
    PID:1240

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1240-54-0x0000000001B50000-0x0000000001CBA000-memory.dmp

    Filesize

    1.4MB

  • memory/1240-55-0x00000000779C0000-0x00000000779C1000-memory.dmp

    Filesize

    4KB