Analysis

  • max time kernel
    34s
  • max time network
    164s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25/05/2022, 20:00

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:1728
    • C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsUpdate.exe"
      2⤵
        PID:1364
        • C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\svchosts.exe"
          3⤵
            PID:1288

      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/1288-84-0x0000000000A06000-0x0000000000A25000-memory.dmp

        Filesize

        124KB

      • memory/1288-83-0x000007FEF3160000-0x000007FEF41F6000-memory.dmp

        Filesize

        16.6MB

      • memory/1364-76-0x0000000002205000-0x0000000002208000-memory.dmp

        Filesize

        12KB

      • memory/1364-73-0x0000000002209000-0x000000000220D000-memory.dmp

        Filesize

        16KB

      • memory/1364-79-0x00000000021DF000-0x00000000021E4000-memory.dmp

        Filesize

        20KB

      • memory/1364-78-0x00000000021D4000-0x00000000021DD000-memory.dmp

        Filesize

        36KB

      • memory/1364-77-0x00000000021CB000-0x00000000021D0000-memory.dmp

        Filesize

        20KB

      • memory/1364-67-0x000007FEF3160000-0x000007FEF41F6000-memory.dmp

        Filesize

        16.6MB

      • memory/1364-69-0x00000000021A6000-0x00000000021C5000-memory.dmp

        Filesize

        124KB

      • memory/1364-70-0x00000000021F5000-0x00000000021F9000-memory.dmp

        Filesize

        16KB

      • memory/1364-71-0x00000000021FD000-0x0000000002201000-memory.dmp

        Filesize

        16KB

      • memory/1364-72-0x0000000002201000-0x0000000002205000-memory.dmp

        Filesize

        16KB

      • memory/1364-75-0x00000000021D2000-0x00000000021D7000-memory.dmp

        Filesize

        20KB

      • memory/1364-74-0x000000000220D000-0x0000000002215000-memory.dmp

        Filesize

        32KB

      • memory/1728-62-0x0000000000ABB000-0x0000000000ABF000-memory.dmp

        Filesize

        16KB

      • memory/1728-54-0x000007FEF3160000-0x000007FEF41F6000-memory.dmp

        Filesize

        16.6MB

      • memory/1728-60-0x0000000000ABE000-0x0000000000AC4000-memory.dmp

        Filesize

        24KB

      • memory/1728-61-0x0000000000AD4000-0x0000000000AD8000-memory.dmp

        Filesize

        16KB

      • memory/1728-63-0x0000000000AC2000-0x0000000000ACA000-memory.dmp

        Filesize

        32KB

      • memory/1728-59-0x0000000000AD1000-0x0000000000AD8000-memory.dmp

        Filesize

        28KB

      • memory/1728-58-0x0000000000ACC000-0x0000000000ACF000-memory.dmp

        Filesize

        12KB

      • memory/1728-57-0x0000000000ADD000-0x0000000000AE1000-memory.dmp

        Filesize

        16KB

      • memory/1728-56-0x0000000000A96000-0x0000000000AB5000-memory.dmp

        Filesize

        124KB

      • memory/1728-55-0x000007FEFBF91000-0x000007FEFBF93000-memory.dmp

        Filesize

        8KB