Analysis

  • max time kernel
    15s
  • max time network
    22s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    07-02-2023 19:08

General

  • Target

    maidservant/changeability.dll

  • Size

    883KB

  • MD5

    c5f2f4f62a273ddebaa72be2bc60aa96

  • SHA1

    ec0e5be2eb48abd1f8f7d768c51280bb52e8dd35

  • SHA256

    56088c0abddea8f5af72f2e212d1da5688cc3c67e6587e5885107d6b900c37bb

  • SHA512

    02fb65e5907611765f4df50483bbc8f9f5ba25115f986c0582b5ee1f20ec0cccc37cc875c8f9a5594a924def19e87cb0931e723d48333da217392b905414d085

  • SSDEEP

    24576:bl7tQ/ikPAknx9XfzPXMRrMnSUcQBlmzrle2:bl7i/i+A297PXMn3QBlOe

Score
10/10

Malware Config

Extracted

Family

bumblebee

Botnet

0211r

C2

193.109.120.156:443

192.111.146.184:443

104.219.233.113:443

rc4.plain

Signatures

  • BumbleBee

    BumbleBee is a webshell malware written in C++.

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Program crash 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\maidservant\changeability.dll,#1
    1⤵
    • Suspicious use of NtCreateThreadExHideFromDebugger
    PID:3712
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 3712 -s 384
      2⤵
      • Program crash
      PID:3716

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/3712-116-0x00000290F14F0000-0x00000290F1639000-memory.dmp

    Filesize

    1.3MB

  • memory/3712-117-0x00000290EF890000-0x00000290EF906000-memory.dmp

    Filesize

    472KB