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Analysis

  • max time kernel
    167s
  • max time network
    192s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2022, 19:01

General

  • Target

    YBnruijYBbnbMK.bat

  • Size

    1KB

  • MD5

    76bdd5d90645d4d05142e52c32ba5691

  • SHA1

    a7a8427a3333e9aa4bc4f1afe2003c30d489384c

  • SHA256

    872a7741ca7f2cac261346385be38b91a582ec26c4160472b7b8769da884a55d

  • SHA512

    083d71cae8b0eec7c31cfbca1f2b71ce20d7c3632ff345d154fa071348d4bef3e660abd3bd854470100e38ee4de967ba3814d1ee906e7299db20626c15fa8c1b

Score
10/10

Malware Config

Extracted

Family

bumblebee

Botnet

2710vm

C2

23.106.160.141:443

198.98.56.242:443

104.244.77.61:443

rc4.plain

Signatures

  • BumbleBee

    BumbleBee is a webshell malware written in C++.

  • Blocklisted process makes network request 5 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\YBnruijYBbnbMK.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4648
    • C:\Windows\system32\rundll32.exe
      rundll32 vEzFDEkEeKmEBW.dll,AppLoad
      2⤵
      • Blocklisted process makes network request
      • Suspicious use of NtCreateThreadExHideFromDebugger
      PID:5096

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/5096-133-0x0000017DD7E10000-0x0000017DD7F59000-memory.dmp

    Filesize

    1.3MB

  • memory/5096-134-0x0000017DD7CC0000-0x0000017DD7E05000-memory.dmp

    Filesize

    1.3MB