Analysis

  • max time kernel
    139s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-02-2023 17:33

General

  • Target

    sample.dll

  • Size

    903KB

  • MD5

    a740177df6f2918373d4e6f482b8c2e3

  • SHA1

    4501edd7904033cfdee783c03af2df0db935be30

  • SHA256

    51bb71bd446bd7fc03cc1234fcc3f489f10db44e312c9ce619b937fad6912656

  • SHA512

    ec45deeffd340dafecd065d22823df9a6f7e3cbc03e64316b6b7433f051a060c610e2c2d3df03d33966b05b03183af56074cc81a8383bcbf8fb0e61dc22dad73

  • SSDEEP

    24576:gYfSxQ6Gjq/v/PQ7fV+Hz9PuYWp9ToAbXjTA+JxN9QS:/fSqovPQ7Cs9FbTTAAbx

Score
10/10

Malware Config

Extracted

Family

bumblebee

Botnet

tokdll

C2

195.20.17.233:443

192.111.146.189:443

62.113.238.73:443

rc4.plain

Signatures

  • BumbleBee

    BumbleBee is a webshell malware written in C++.

  • Blocklisted process makes network request 7 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\sample.dll,#1
    1⤵
    • Blocklisted process makes network request
    • Suspicious use of NtCreateThreadExHideFromDebugger
    PID:1208

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1208-132-0x000001A9CC1B0000-0x000001A9CC311000-memory.dmp

    Filesize

    1.4MB

  • memory/1208-133-0x000001A9CBFD0000-0x000001A9CC04E000-memory.dmp

    Filesize

    504KB