Analysis

  • max time kernel
    133s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-11-2022 22:37

General

  • Target

    swBdvsXKmEsXgd.bat

  • Size

    1KB

  • MD5

    11571cb7543f27a669a315c59c6daa26

  • SHA1

    0a7623689fcfb1d19fd51c4fa23fb3b83d0fce9e

  • SHA256

    b4d367fcd6757019179b99220e5500277fae9cc13028771457edee23eeebe412

  • SHA512

    ddc2f689d5480971195c3ae5a9083cfb6b7bc2568ce54a707f6fc7f67c0acf6c20a71a40ec3922cc66e2b08cf48e10a6855428dc658d278470ca4e4a72e6e369

Score
10/10

Malware Config

Extracted

Family

bumblebee

Botnet

0311

C2

64.44.102.224:443

146.70.161.59:443

192.236.194.104:443

rc4.plain

Signatures

  • BumbleBee

    BumbleBee is a webshell malware written in C++.

  • Blocklisted process makes network request 6 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\swBdvsXKmEsXgd.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5036
    • C:\Windows\system32\rundll32.exe
      rundll32 OyNrEOXqQnrBVp.dll,BasicLoad
      2⤵
      • Blocklisted process makes network request
      • Suspicious use of NtCreateThreadExHideFromDebugger
      PID:4744

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/4744-133-0x00000255A7B20000-0x00000255A7C69000-memory.dmp

    Filesize

    1.3MB

  • memory/4744-134-0x00000255A7910000-0x00000255A7986000-memory.dmp

    Filesize

    472KB