Analysis

  • max time kernel
    142s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-11-2022 22:29

General

  • Target

    50f6af1df3ca9b3ce774bae870aa468e43dfb8b2b304f5297010c7acf109992c.dll

  • Size

    967KB

  • MD5

    f755b615f00bbcda2ba3dfefba156d84

  • SHA1

    0b7c2399e1f90a83cf33a10d9e5c982b9641e54a

  • SHA256

    50f6af1df3ca9b3ce774bae870aa468e43dfb8b2b304f5297010c7acf109992c

  • SHA512

    fc2da2cc3ceb41b0f7deb8e3c2532c71c73ebe9e9a3c74ba00e08253cc3bb3667558f21fc2bee1c78b229113e2e6eb34a5e3d6a2ef8f4b99baadd9b540814dfd

  • SSDEEP

    12288:OsR+JOrTyNiXY/YbOtqi4Q9DlSQbMVvivnkzKvrnq/hLboj1HVQeVeAKxInXUjP4:OscsowqCicUMEsGTnq/Bc+YeJeUy8

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

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\50f6af1df3ca9b3ce774bae870aa468e43dfb8b2b304f5297010c7acf109992c.dll,#1
    1⤵
    • Blocklisted process makes network request
    • Suspicious use of NtCreateThreadExHideFromDebugger
    PID:648

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/648-132-0x000001BF0ED10000-0x000001BF0ED86000-memory.dmp

    Filesize

    472KB

  • memory/648-133-0x000001BF10710000-0x000001BF10859000-memory.dmp

    Filesize

    1.3MB

  • memory/648-134-0x000001BF0ED10000-0x000001BF0ED86000-memory.dmp

    Filesize

    472KB