Overview

overview

10

Static

static

10

47f20e39f5...a3.exe

windows7-x64

10

47f20e39f5...a3.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2025 02:34

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General

  • Target

    47f20e39f51c71bbc24e7bf28496c859cf3e4e9dc81cc439f177956aba6d32a3.exe

  • Size

    99KB

  • MD5

    383415f1b59a5b44074655ecf23d806b

  • SHA1

    febd2f81bfb9debb631160673f6bf5718cae0f37

  • SHA256

    47f20e39f51c71bbc24e7bf28496c859cf3e4e9dc81cc439f177956aba6d32a3

  • SHA512

    62a081357e5ef2b1cd8cb3d3062624a8192542fba3f1959a9a5ab17db0fbb5f2687244a99abb31ee9631c19d4134f3d1e5bc313f1c97de10ff1c4c13e028ab17

  • SSDEEP

    1536:09FUuRWzwFfsSMBdvueI5Xq8ZGAHEKJusRebSTr2qPQ2TYB+ezwRYx3beV5EKQLa:/MlDZGIuLS3TYB+eztx3be/EKyyFfai

Score
10/10
blacknethackeddiscoverypersistencetrojan

Malware Config

Extracted

Family

blacknet

Version

v3.7.0 Public

Botnet

HacKed

C2

http://148.72.170.231:4444/BNET

Mutex

BN[]

Attributes
  • antivm

    false

  • elevate_uac

    false

  • install_name

    WindowsUpdate.exe

  • splitter

    |BN|

  • start_name

    e162b1333458a713bc6916cc8ac4110c

  • startup

    false

  • usb_spread

    false

Signatures

  • BlackNET

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

    trojanblacknet
  • BlackNET payload 3 IoCs
  • Blacknet family
    blacknet
  • Contains code to disable Windows Defender 3 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 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 4 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\47f20e39f51c71bbc24e7bf28496c859cf3e4e9dc81cc439f177956aba6d32a3.exe
    "C:\Users\Admin\AppData\Local\Temp\47f20e39f51c71bbc24e7bf28496c859cf3e4e9dc81cc439f177956aba6d32a3.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 1.1.1.1 -n 5 -w 5000 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\47f20e39f51c71bbc24e7bf28496c859cf3e4e9dc81cc439f177956aba6d32a3.exe"
      2⤵
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2900
      • C:\Windows\system32\PING.EXE
        ping 1.1.1.1 -n 5 -w 5000
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2876
    • C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2896
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c ping 1.1.1.1 -n 5 -w 5000 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:2684
        • C:\Windows\system32\PING.EXE
          ping 1.1.1.1 -n 5 -w 5000
          4⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:320

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    99KB

    MD5

    383415f1b59a5b44074655ecf23d806b

    SHA1

    febd2f81bfb9debb631160673f6bf5718cae0f37

    SHA256

    47f20e39f51c71bbc24e7bf28496c859cf3e4e9dc81cc439f177956aba6d32a3

    SHA512

    62a081357e5ef2b1cd8cb3d3062624a8192542fba3f1959a9a5ab17db0fbb5f2687244a99abb31ee9631c19d4134f3d1e5bc313f1c97de10ff1c4c13e028ab17

    Download Submit

  • memory/2552-0-0x000007FEF52D3000-0x000007FEF52D4000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2552-1-0x00000000003A0000-0x00000000003BE000-memory.dmp

    Filesize

    120KB

    Download

  • memory/2552-2-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/2552-3-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/2552-4-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/2552-12-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/2896-11-0x0000000001000000-0x000000000101E000-memory.dmp

    Filesize

    120KB

    Download