Analysis

  • max time kernel
    143s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230831-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-09-2023 09:30

General

  • Target

    b8fc2474a801ea4b51df01d869c192cf430d72763758d8ca68cc43e318fdc7a0.dll

  • Size

    1.1MB

  • MD5

    9a05abe3e58b71abd91ba819bbe88846

  • SHA1

    3cf06a801d3b061e6dfd7c0fd257778ce878d4d1

  • SHA256

    b8fc2474a801ea4b51df01d869c192cf430d72763758d8ca68cc43e318fdc7a0

  • SHA512

    c4a2a544527cf6d0fb909bdc8cf58eb3e4f3741ecba2578f0ec11ef69a4ca1713110ca1b3c8dc1f02c35ed4a241247abe042e725080dd0945cca3ba4c124a392

  • SSDEEP

    24576:Vi1XU5dnViuxKLDjpZkECM513RshB80lPW6XmA:01cdnVkjq

Score
10/10

Malware Config

Extracted

Family

bumblebee

Botnet

js1

rc4.plain

Signatures

  • BumbleBee

    BumbleBee is a webshell malware written in C++.

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b8fc2474a801ea4b51df01d869c192cf430d72763758d8ca68cc43e318fdc7a0.dll
    1⤵
    • Suspicious use of NtCreateThreadExHideFromDebugger
    PID:4624
  • C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
    1⤵
      PID:4652
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k UnistackSvcGroup
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:5108

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4624-0-0x0000000002210000-0x0000000002289000-memory.dmp

      Filesize

      484KB

    • memory/4624-1-0x00000000023A0000-0x00000000024AA000-memory.dmp

      Filesize

      1.0MB

    • memory/4624-2-0x00007FF83AE70000-0x00007FF83B065000-memory.dmp

      Filesize

      2.0MB

    • memory/4624-3-0x00000000023A0000-0x00000000024AA000-memory.dmp

      Filesize

      1.0MB

    • memory/4624-4-0x00007FF83AE70000-0x00007FF83B065000-memory.dmp

      Filesize

      2.0MB

    • memory/4624-5-0x00000000023A0000-0x00000000024AA000-memory.dmp

      Filesize

      1.0MB

    • memory/4624-6-0x00007FF83AE70000-0x00007FF83B065000-memory.dmp

      Filesize

      2.0MB

    • memory/4624-7-0x00000000023A0000-0x00000000024AA000-memory.dmp

      Filesize

      1.0MB

    • memory/4624-8-0x0000000002210000-0x0000000002289000-memory.dmp

      Filesize

      484KB

    • memory/4624-9-0x00007FF83AE70000-0x00007FF83B065000-memory.dmp

      Filesize

      2.0MB

    • memory/5108-10-0x0000018EE5A40000-0x0000018EE5A50000-memory.dmp

      Filesize

      64KB

    • memory/5108-26-0x0000018EE5B40000-0x0000018EE5B50000-memory.dmp

      Filesize

      64KB

    • memory/5108-42-0x0000018EEDFA0000-0x0000018EEDFA1000-memory.dmp

      Filesize

      4KB

    • memory/5108-43-0x0000018EEDFC0000-0x0000018EEDFC1000-memory.dmp

      Filesize

      4KB

    • memory/5108-44-0x0000018EEDFC0000-0x0000018EEDFC1000-memory.dmp

      Filesize

      4KB

    • memory/5108-45-0x0000018EEDFC0000-0x0000018EEDFC1000-memory.dmp

      Filesize

      4KB

    • memory/5108-46-0x0000018EEDFC0000-0x0000018EEDFC1000-memory.dmp

      Filesize

      4KB

    • memory/5108-47-0x0000018EEDFC0000-0x0000018EEDFC1000-memory.dmp

      Filesize

      4KB

    • memory/5108-48-0x0000018EEDFC0000-0x0000018EEDFC1000-memory.dmp

      Filesize

      4KB

    • memory/5108-49-0x0000018EEDFC0000-0x0000018EEDFC1000-memory.dmp

      Filesize

      4KB

    • memory/5108-50-0x0000018EEDFC0000-0x0000018EEDFC1000-memory.dmp

      Filesize

      4KB

    • memory/5108-51-0x0000018EEDFC0000-0x0000018EEDFC1000-memory.dmp

      Filesize

      4KB

    • memory/5108-52-0x0000018EEDFC0000-0x0000018EEDFC1000-memory.dmp

      Filesize

      4KB

    • memory/5108-53-0x0000018EEDD00000-0x0000018EEDD01000-memory.dmp

      Filesize

      4KB

    • memory/5108-54-0x0000018EEDCF0000-0x0000018EEDCF1000-memory.dmp

      Filesize

      4KB

    • memory/5108-56-0x0000018EEDD00000-0x0000018EEDD01000-memory.dmp

      Filesize

      4KB

    • memory/5108-59-0x0000018EEDCF0000-0x0000018EEDCF1000-memory.dmp

      Filesize

      4KB

    • memory/5108-62-0x0000018EE53E0000-0x0000018EE53E1000-memory.dmp

      Filesize

      4KB

    • memory/5108-74-0x0000018EEDE20000-0x0000018EEDE21000-memory.dmp

      Filesize

      4KB

    • memory/5108-76-0x0000018EEDE30000-0x0000018EEDE31000-memory.dmp

      Filesize

      4KB

    • memory/5108-77-0x0000018EEDE30000-0x0000018EEDE31000-memory.dmp

      Filesize

      4KB

    • memory/5108-78-0x0000018EEDF40000-0x0000018EEDF41000-memory.dmp

      Filesize

      4KB