Analysis

  • max time kernel
    17s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26-10-2024 22:12

General

  • Target

    cad8c73ebaabdfc1557482f83e18d543be6bd15e723bb89670398f8c4a3e2181N.exe

  • Size

    70KB

  • MD5

    028940e1f2ecb5ef9aba3dcd590d3260

  • SHA1

    066d9db987d05c89b055f2f870ce76af4930ae9c

  • SHA256

    cad8c73ebaabdfc1557482f83e18d543be6bd15e723bb89670398f8c4a3e2181

  • SHA512

    a075c6d5923b5978bbb20f0bee773a46b698fa7ad946aa57f98dc51f5403fe6cc9b8e07f35bfaf457f6d386f3d213e2f63d7404cf4840a9a991197ddf77202ca

  • SSDEEP

    1536:gFTnqpKxynVZGeifCSzTPb542HkLbvJfxa:gFT0Geifrvb59H+bvJ5a

Malware Config

Extracted

Family

blacknet

Botnet

HacKed

C2

https://lovegunny.net

Mutex

BN[tuFcXBCi-9342877]

Attributes
  • antivm

    true

  • elevate_uac

    false

  • install_name

    WindowsUpdate.exe

  • splitter

    |BN|

  • start_name

    2965b7eabf9eb6ce83de7d2260ab71ba

  • startup

    true

  • usb_spread

    true

Signatures

  • BlackNET

    BlackNET is an open source remote access tool written in VB.NET.

  • BlackNET payload 1 IoCs
  • Blacknet family
  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cad8c73ebaabdfc1557482f83e18d543be6bd15e723bb89670398f8c4a3e2181N.exe
    "C:\Users\Admin\AppData\Local\Temp\cad8c73ebaabdfc1557482f83e18d543be6bd15e723bb89670398f8c4a3e2181N.exe"
    1⤵
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3012
    • C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      PID:2832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabC04.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe

    Filesize

    70KB

    MD5

    028940e1f2ecb5ef9aba3dcd590d3260

    SHA1

    066d9db987d05c89b055f2f870ce76af4930ae9c

    SHA256

    cad8c73ebaabdfc1557482f83e18d543be6bd15e723bb89670398f8c4a3e2181

    SHA512

    a075c6d5923b5978bbb20f0bee773a46b698fa7ad946aa57f98dc51f5403fe6cc9b8e07f35bfaf457f6d386f3d213e2f63d7404cf4840a9a991197ddf77202ca

  • C:\Users\Admin\AppData\Local\Temp\TarC36.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • memory/2832-55-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/2832-59-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/2832-60-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/2832-58-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/2832-57-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/3012-50-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/3012-54-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/3012-1-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/3012-3-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/3012-51-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/3012-52-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/3012-53-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/3012-47-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/3012-56-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/3012-44-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/3012-41-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB

  • memory/3012-40-0x000007FEF51CE000-0x000007FEF51CF000-memory.dmp

    Filesize

    4KB

  • memory/3012-0-0x000007FEF51CE000-0x000007FEF51CF000-memory.dmp

    Filesize

    4KB

  • memory/3012-2-0x000007FEF4F10000-0x000007FEF58AD000-memory.dmp

    Filesize

    9.6MB