Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-10-2024 18:37

General

  • Target

    a3e093dd38ff8234d42c0cb256bd37028f3563b42ac05a13fdd38e8b0b6a351dN.exe

  • Size

    80KB

  • MD5

    e95b79a1f19abb4fb5144412ed01e810

  • SHA1

    8bb1a184264c8b22929c4b6ec7439b28072c0d5b

  • SHA256

    a3e093dd38ff8234d42c0cb256bd37028f3563b42ac05a13fdd38e8b0b6a351d

  • SHA512

    3272f74164c4188c275b5276f3ba1430384e12003a12558609e857ad28a675b70d4553bfdce8b3956a74582e788e040dfbbd899c95c81f6d01afd5ed623faf26

  • SSDEEP

    1536:dPvK/3zvzVQtCsscKvWfjzJxuOmb54vHTL6lm:diqCsp7zVmb5uHv6lm

Malware Config

Extracted

Family

blacknet

Botnet

HacKed

C2

https://lovegunny.net/

Mutex

BN[GnFquUJG-0548378]

Attributes
  • antivm

    false

  • elevate_uac

    true

  • install_name

    WindowsUpdate.exe

  • splitter

    |BN|

  • start_name

    cde2f914e4cce7f13b2c1cec7b6da970

  • startup

    false

  • usb_spread

    true

Signatures

  • BlackNET

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

  • BlackNET payload 1 IoCs
  • 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.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 1 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 4 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3e093dd38ff8234d42c0cb256bd37028f3563b42ac05a13fdd38e8b0b6a351dN.exe
    "C:\Users\Admin\AppData\Local\Temp\a3e093dd38ff8234d42c0cb256bd37028f3563b42ac05a13fdd38e8b0b6a351dN.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • Windows security modification
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2132
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2652
    • C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Windows security modification
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2424
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1672

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabDF78.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    80KB

    MD5

    e95b79a1f19abb4fb5144412ed01e810

    SHA1

    8bb1a184264c8b22929c4b6ec7439b28072c0d5b

    SHA256

    a3e093dd38ff8234d42c0cb256bd37028f3563b42ac05a13fdd38e8b0b6a351d

    SHA512

    3272f74164c4188c275b5276f3ba1430384e12003a12558609e857ad28a675b70d4553bfdce8b3956a74582e788e040dfbbd899c95c81f6d01afd5ed623faf26

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

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    Filesize

    7KB

    MD5

    d6cfd1b0346ed06bb001ea9c2132e0bb

    SHA1

    8fd8146c8805eacf4f648b0aa9b4788733a66782

    SHA256

    d2199f0c1eaadf262886070e3e512bf2fbfa74015b8998af12d58e80183183d0

    SHA512

    1400d5c29912526fea05c9777fe7bf9446fcd451f4cbaa045a7c01b778ff9bf668b0042cab0ef7ee8da87040646e86ec0754e7819d38d8af66dc62bee0bd7b5c

  • memory/1672-92-0x000000001B6F0000-0x000000001B9D2000-memory.dmp

    Filesize

    2.9MB

  • memory/1672-93-0x0000000002310000-0x0000000002318000-memory.dmp

    Filesize

    32KB

  • memory/2132-61-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-73-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-40-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-43-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-44-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-45-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-46-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-47-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-48-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-49-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-54-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-1-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-57-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-2-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-60-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-58-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-0-0x000007FEF6A2E000-0x000007FEF6A2F000-memory.dmp

    Filesize

    4KB

  • memory/2132-62-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-63-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-64-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-55-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-65-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-66-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-67-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-68-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-69-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-71-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-72-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-74-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-75-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-3-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-42-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-70-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-83-0x000007FEF6A2E000-0x000007FEF6A2F000-memory.dmp

    Filesize

    4KB

  • memory/2132-84-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-41-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2132-86-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2652-85-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2652-76-0x000007FEF6770000-0x000007FEF710D000-memory.dmp

    Filesize

    9.6MB

  • memory/2652-59-0x00000000020C0000-0x00000000020C8000-memory.dmp

    Filesize

    32KB

  • memory/2652-56-0x000000001B620000-0x000000001B902000-memory.dmp

    Filesize

    2.9MB