Analysis

  • max time kernel
    130s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    20/03/2022, 06:57

General

  • Target
    2f5618011959e0ea6248675fe90c7ff13966cfccb5d0d84d46163d0b4814ca19.exe
  • Size 116KB
  • Sample220320-hq4stsadc5
  • 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:1392
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1392 -s 1236
      2⤵
      • Program crash
      PID:2648
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1392 -s 1276
      2⤵
      • Program crash
      PID:3208
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 408 -p 1392 -ip 1392
    1⤵
      PID:2288
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 544 -p 1392 -ip 1392
      1⤵
        PID:3472

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

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            Downloads

            memory/1392-130-0x0000000000450000-0x0000000000472000-memory.dmp

            memory/1392-131-0x00007FFE82B80000-0x00007FFE83641000-memory.dmp

            memory/1392-132-0x0000000000AE0000-0x0000000000AE2000-memory.dmp