Overview

overview

10

Static

static

10

b33d569af5...09.exe

windows7_x64

10

b33d569af5...09.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    63s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 07:47

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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 3 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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe
    "C:\Users\Admin\AppData\Local\Temp\b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2420
    • 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:744
      • C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe"
        3⤵
          PID:2376

    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

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

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

      17KB

      MD5

      89dd6e72358a669b7d6e2348307a7af7

      SHA1

      0db348f3c6114a45d71f4d218e0e088b71c7bb0a

      SHA256

      ad34794058212006ae974fcc6a0242598e6d020f08044439e3512773cd402b7e

      SHA512

      93b8a47686d7491281a0809b138a6244a535302ba0d6b2146849e9888632c72b6223ae8eb7a24f1006aaf57ab947a8f43719cff4837df559e7bf42f52c63856b

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

      17KB

      MD5

      89dd6e72358a669b7d6e2348307a7af7

      SHA1

      0db348f3c6114a45d71f4d218e0e088b71c7bb0a

      SHA256

      ad34794058212006ae974fcc6a0242598e6d020f08044439e3512773cd402b7e

      SHA512

      93b8a47686d7491281a0809b138a6244a535302ba0d6b2146849e9888632c72b6223ae8eb7a24f1006aaf57ab947a8f43719cff4837df559e7bf42f52c63856b

      Download Submit
    • memory/744-144-0x00000000216E0000-0x00000000216E5000-memory.dmp
      Filesize

      20KB

      Download
    • memory/744-142-0x00000000216DA000-0x00000000216DD000-memory.dmp
      Filesize

      12KB

      Download
    • memory/744-132-0x0000000000000000-mapping.dmp
      Download
    • memory/744-143-0x00000000216DD000-0x00000000216E0000-memory.dmp
      Filesize

      12KB

      Download
    • memory/744-139-0x0000000000D6A000-0x0000000000D6F000-memory.dmp
      Filesize

      20KB

      Download
    • memory/744-140-0x00000000216D0000-0x00000000216D3000-memory.dmp
      Filesize

      12KB

      Download
    • memory/744-141-0x00000000216D7000-0x00000000216DA000-memory.dmp
      Filesize

      12KB

      Download
    • memory/744-145-0x00000000216D1000-0x00000000216DC000-memory.dmp
      Filesize

      44KB

      Download
    • memory/2376-146-0x0000000000000000-mapping.dmp
      Download
    • memory/2420-131-0x000000000154A000-0x000000000154F000-memory.dmp
      Filesize

      20KB

      Download
    • memory/2420-136-0x0000000021857000-0x000000002185A000-memory.dmp
      Filesize

      12KB

      Download
    • memory/2420-138-0x0000000021865000-0x000000002186A000-memory.dmp
      Filesize

      20KB

      Download
    • memory/2420-135-0x0000000021850000-0x0000000021853000-memory.dmp
      Filesize

      12KB

      Download
    • memory/2420-137-0x0000000021860000-0x0000000021865000-memory.dmp
      Filesize

      20KB

      Download