Overview

overview

10

Static

static

10

b33d569af5...09.exe

windows7_x64

10

b33d569af5...09.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    62s
  • max time network
    65s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 19:46

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General

  • Target

    b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe

  • Size

    131KB

  • MD5

    c4f79edc4498c5570495bb36fc942134

  • SHA1

    00046b588252502480e8e708a22d25ae1d9b05fa

  • SHA256

    b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09

  • SHA512

    07bdeb39b35835a752886c2d308a68d263b36e8372d2bf320ede5b85252d14e284985d0889dfa9fcffec7ede7c3585a46cb0165b00be903755ffe63cacb21cef

Score
10/10
blacknethackedpersistencetrojan

Malware Config

Extracted

Family

blacknet

Version

v3.5 Public

Botnet

HacKed

C2

http://finalb.xyz/NiggaNet

Mutex

BN[RqfcWolJ-7232457]

Attributes
  • antivm

    true

  • elevate_uac

    false

  • install_name

    WindowsUpdate.exe

  • splitter

    |BN|

  • start_name

    df7427b5e05183e625345c3c37ef31c0

  • startup

    true

  • usb_spread

    true

aes.plain

Signatures

  • BlackNET

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

    trojanblacknet
  • BlackNET Payload 2 IoCs
  • Contains code to disable Windows Defender 2 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 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe
    "C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1276
    • C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:424

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

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

    131KB

    MD5

    c4f79edc4498c5570495bb36fc942134

    SHA1

    00046b588252502480e8e708a22d25ae1d9b05fa

    SHA256

    b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09

    SHA512

    07bdeb39b35835a752886c2d308a68d263b36e8372d2bf320ede5b85252d14e284985d0889dfa9fcffec7ede7c3585a46cb0165b00be903755ffe63cacb21cef

    Download Submit
  • C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe
    Filesize

    131KB

    MD5

    c4f79edc4498c5570495bb36fc942134

    SHA1

    00046b588252502480e8e708a22d25ae1d9b05fa

    SHA256

    b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09

    SHA512

    07bdeb39b35835a752886c2d308a68d263b36e8372d2bf320ede5b85252d14e284985d0889dfa9fcffec7ede7c3585a46cb0165b00be903755ffe63cacb21cef

    Download Submit
  • memory/424-64-0x0000000000000000-mapping.dmp
    Download
  • memory/424-73-0x0000000000AB6000-0x0000000000AD5000-memory.dmp
    Filesize

    124KB

    Download
  • memory/424-68-0x000007FEF2F40000-0x000007FEF3FD6000-memory.dmp
    Filesize

    16.6MB

    Download
  • memory/424-67-0x000007FEF3FE0000-0x000007FEF4A03000-memory.dmp
    Filesize

    10.1MB

    Download
  • memory/1276-58-0x0000000000BA9000-0x0000000000BAC000-memory.dmp
    Filesize

    12KB

    Download
  • memory/1276-61-0x0000000000B8F000-0x0000000000B96000-memory.dmp
    Filesize

    28KB

    Download
  • memory/1276-62-0x0000000000B95000-0x0000000000B99000-memory.dmp
    Filesize

    16KB

    Download
  • memory/1276-63-0x0000000000B94000-0x0000000000B99000-memory.dmp
    Filesize

    20KB

    Download
  • memory/1276-60-0x0000000000B8E000-0x0000000000B92000-memory.dmp
    Filesize

    16KB

    Download
  • memory/1276-59-0x0000000000B8C000-0x0000000000B96000-memory.dmp
    Filesize

    40KB

    Download
  • memory/1276-54-0x000007FEF3FE0000-0x000007FEF4A03000-memory.dmp
    Filesize

    10.1MB

    Download
  • memory/1276-57-0x0000000000B66000-0x0000000000B85000-memory.dmp
    Filesize

    124KB

    Download
  • memory/1276-56-0x000007FEFBC21000-0x000007FEFBC23000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1276-70-0x0000000000B8B000-0x0000000000B90000-memory.dmp
    Filesize

    20KB

    Download
  • memory/1276-71-0x0000000000BB3000-0x0000000000BB7000-memory.dmp
    Filesize

    16KB

    Download
  • memory/1276-72-0x0000000000BAE000-0x0000000000BB2000-memory.dmp
    Filesize

    16KB

    Download
  • memory/1276-55-0x000007FEF2F40000-0x000007FEF3FD6000-memory.dmp
    Filesize

    16.6MB

    Download