Analysis

  • max time kernel
    23s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    01-05-2022 01:37

General

  • Target

    b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09.exe

  • Size

    131KB

  • MD5

    c4f79edc4498c5570495bb36fc942134

  • SHA1

    00046b588252502480e8e708a22d25ae1d9b05fa

  • SHA256

    b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09

  • SHA512

    07bdeb39b35835a752886c2d308a68d263b36e8372d2bf320ede5b85252d14e284985d0889dfa9fcffec7ede7c3585a46cb0165b00be903755ffe63cacb21cef

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.

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 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
    PID:1240
    • C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe"
      2⤵
        PID:1580
        • C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe"
          3⤵
            PID:900

      Network

      MITRE ATT&CK Enterprise v6

      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

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

        Filesize

        131KB

        MD5

        c4f79edc4498c5570495bb36fc942134

        SHA1

        00046b588252502480e8e708a22d25ae1d9b05fa

        SHA256

        b33d569af5e490875d6473c6402797ddb4ce639bb1f1cf7f67698eeafa625f09

        SHA512

        07bdeb39b35835a752886c2d308a68d263b36e8372d2bf320ede5b85252d14e284985d0889dfa9fcffec7ede7c3585a46cb0165b00be903755ffe63cacb21cef

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

        Filesize

        17KB

        MD5

        89dd6e72358a669b7d6e2348307a7af7

        SHA1

        0db348f3c6114a45d71f4d218e0e088b71c7bb0a

        SHA256

        ad34794058212006ae974fcc6a0242598e6d020f08044439e3512773cd402b7e

        SHA512

        93b8a47686d7491281a0809b138a6244a535302ba0d6b2146849e9888632c72b6223ae8eb7a24f1006aaf57ab947a8f43719cff4837df559e7bf42f52c63856b

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

        Filesize

        17KB

        MD5

        89dd6e72358a669b7d6e2348307a7af7

        SHA1

        0db348f3c6114a45d71f4d218e0e088b71c7bb0a

        SHA256

        ad34794058212006ae974fcc6a0242598e6d020f08044439e3512773cd402b7e

        SHA512

        93b8a47686d7491281a0809b138a6244a535302ba0d6b2146849e9888632c72b6223ae8eb7a24f1006aaf57ab947a8f43719cff4837df559e7bf42f52c63856b

      • memory/900-84-0x0000000000310000-0x0000000000390000-memory.dmp

        Filesize

        512KB

      • memory/900-83-0x000007FEEE020000-0x000007FEEF0B6000-memory.dmp

        Filesize

        16.6MB

      • memory/900-80-0x0000000000000000-mapping.dmp

      • memory/1240-68-0x0000000001F91000-0x0000000001F95000-memory.dmp

        Filesize

        16KB

      • memory/1240-60-0x0000000001FA1000-0x0000000001FA5000-memory.dmp

        Filesize

        16KB

      • memory/1240-63-0x0000000001FB5000-0x0000000001FB9000-memory.dmp

        Filesize

        16KB

      • memory/1240-65-0x0000000001FB5000-0x0000000001FB8000-memory.dmp

        Filesize

        12KB

      • memory/1240-64-0x0000000001FB9000-0x0000000001FBD000-memory.dmp

        Filesize

        16KB

      • memory/1240-66-0x0000000001F89000-0x0000000001F8F000-memory.dmp

        Filesize

        24KB

      • memory/1240-67-0x0000000001F91000-0x0000000001F98000-memory.dmp

        Filesize

        28KB

      • memory/1240-54-0x000007FEEE020000-0x000007FEEF0B6000-memory.dmp

        Filesize

        16.6MB

      • memory/1240-69-0x0000000001F82000-0x0000000001F86000-memory.dmp

        Filesize

        16KB

      • memory/1240-55-0x000007FEFBD51000-0x000007FEFBD53000-memory.dmp

        Filesize

        8KB

      • memory/1240-61-0x0000000001FA9000-0x0000000001FAD000-memory.dmp

        Filesize

        16KB

      • memory/1240-62-0x0000000001FB1000-0x0000000001FB5000-memory.dmp

        Filesize

        16KB

      • memory/1240-56-0x0000000001F56000-0x0000000001F75000-memory.dmp

        Filesize

        124KB

      • memory/1240-57-0x0000000001F9D000-0x0000000001FA1000-memory.dmp

        Filesize

        16KB

      • memory/1240-58-0x0000000001FA5000-0x0000000001FA9000-memory.dmp

        Filesize

        16KB

      • memory/1240-59-0x0000000001FAD000-0x0000000001FB1000-memory.dmp

        Filesize

        16KB

      • memory/1580-78-0x00000000009FB000-0x0000000000A01000-memory.dmp

        Filesize

        24KB

      • memory/1580-77-0x00000000009FF000-0x0000000000A05000-memory.dmp

        Filesize

        24KB

      • memory/1580-79-0x0000000000A01000-0x0000000000A05000-memory.dmp

        Filesize

        16KB

      • memory/1580-76-0x0000000000A13000-0x0000000000A16000-memory.dmp

        Filesize

        12KB

      • memory/1580-75-0x00000000009D6000-0x00000000009F5000-memory.dmp

        Filesize

        124KB

      • memory/1580-73-0x000007FEEE020000-0x000007FEEF0B6000-memory.dmp

        Filesize

        16.6MB

      • memory/1580-70-0x0000000000000000-mapping.dmp