Resubmissions

12-10-2023 14:05

231012-rea6tadc7z 10

09-10-2023 22:23

231009-2a2hbagg61 10

Analysis

  • max time kernel
    131s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    09-10-2023 22:23

General

  • Target

    LdrAddX64_out_cr70.dll

  • Size

    894KB

  • MD5

    a4e4f8966796845079ca6b853fd1899d

  • SHA1

    25906943d58610a2208c9312c555dee7eb16952e

  • SHA256

    15b7cb2818530bbf0b55ea608d85df1bd97004a8556a358c11f84dbb93b893f7

  • SHA512

    22df60f5d457cca829aa86f708d6df492aa8acf794dbaed5bfac06b3f6fcbd7a331139c92465a9e5ec57232b76102b26ba593e527266709fd225ca15a3c3045a

  • SSDEEP

    12288:1hPALJCb+JI7GB5ShQUO3wY6Wpg8qvtN2FCOWPZzMe0n28qX2Y5aIv/86PaeAkYT:1hum+JI/jO3z6WStlFq4Gd66PybS

Score
10/10

Malware Config

Extracted

Family

bumblebee

Botnet

lg1010

rc4.plain

Signatures

  • BumbleBee

    BumbleBee is a webshell malware written in C++.

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\LdrAddX64_out_cr70.dll
    1⤵
    • Suspicious use of NtCreateThreadExHideFromDebugger
    PID:2200

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2200-0-0x0000000000460000-0x00000000004CF000-memory.dmp

    Filesize

    444KB

  • memory/2200-1-0x0000000002020000-0x000000000212A000-memory.dmp

    Filesize

    1.0MB

  • memory/2200-3-0x0000000077030000-0x00000000771D9000-memory.dmp

    Filesize

    1.7MB

  • memory/2200-4-0x0000000002020000-0x000000000212A000-memory.dmp

    Filesize

    1.0MB

  • memory/2200-5-0x0000000077030000-0x00000000771D9000-memory.dmp

    Filesize

    1.7MB

  • memory/2200-6-0x0000000077030000-0x00000000771D9000-memory.dmp

    Filesize

    1.7MB

  • memory/2200-7-0x0000000077030000-0x00000000771D9000-memory.dmp

    Filesize

    1.7MB

  • memory/2200-8-0x0000000002020000-0x000000000212A000-memory.dmp

    Filesize

    1.0MB

  • memory/2200-9-0x0000000000460000-0x00000000004CF000-memory.dmp

    Filesize

    444KB

  • memory/2200-10-0x0000000077030000-0x00000000771D9000-memory.dmp

    Filesize

    1.7MB