Analysis

  • max time kernel
    135s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    22/03/2022, 19:01

General

  • Target
    2f5618011959e0ea6248675fe90c7ff13966cfccb5d0d84d46163d0b4814ca19.exe
  • Size 116KB
  • Sample220322-xplcesdcfm
  • SHA256 2f5618011959e0ea6248675fe90c7ff13966cfccb5d0d84d46163d0b4814ca19
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Family
  • blacknet

Version
  • v3.7.0 Public

Botnet
  • CN32mX

C2
  • http://theblogreader-blog.wtf/panel/

Mutex
  • BN[64edd583e1917b9564d89cb984d089c0]

Attributes
  • antivm

    false

  • elevate_uac

    false

  • install_name

    WindowsUpdate.exe

  • splitter

    |BN|

  • start_name

    e162b1333458a713bc6916cc8ac4110c

  • startup

    true

  • usb_spread

    false

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.

  • Program crash 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2f5618011959e0ea6248675fe90c7ff13966cfccb5d0d84d46163d0b4814ca19.exe
    "C:\Users\Admin\AppData\Local\Temp\2f5618011959e0ea6248675fe90c7ff13966cfccb5d0d84d46163d0b4814ca19.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:1664
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1664 -s 1244
      2⤵
      • Program crash
      PID:2784
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1664 -s 1244
      2⤵
      • Program crash
      PID:3408
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 408 -p 1664 -ip 1664
    1⤵
      PID:2556
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 468 -p 1664 -ip 1664
      1⤵
        PID:4996

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

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            Downloads

            memory/1664-130-0x0000000000590000-0x00000000005B2000-memory.dmp

            memory/1664-131-0x00007FFF38300000-0x00007FFF38DC1000-memory.dmp

            memory/1664-132-0x0000000000AF0000-0x0000000000AF2000-memory.dmp