Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    23-10-2024 14:56

General

  • Target

    8f3a92b9516e65e056a871a67a6bf71d1102ecf3454b0b969d9603cb75304c5cN.exe

  • Size

    80KB

  • MD5

    82d0b898dd08b75f03a7be31c91a3d30

  • SHA1

    1a9e50f6c1dd61dbc878d14ea69ea6b3808539d0

  • SHA256

    8f3a92b9516e65e056a871a67a6bf71d1102ecf3454b0b969d9603cb75304c5c

  • SHA512

    fee20ab4c4bf2f531891275d6e8f7938dc26270937a1397f3c035b6c9ee70590b2f75109927ee99928362f850ebbda790d78fc4479ade0cabe381bdce0ba4018

  • SSDEEP

    1536:dPvK/3zvzVQtCsscKvWzjzJxuOmb54vHTL6lm:diqCspHzVmb5uHv6lm

Malware Config

Extracted

Family

blacknet

Botnet

HacKed

C2

https://lovegunny.net/

Mutex

BN[GnFquUJG-0548378]

Attributes
  • antivm

    false

  • elevate_uac

    true

  • install_name

    WindowsUpdate.exe

  • splitter

    |BN|

  • start_name

    cde2f914e4cce7f13b2c1cec7b6da970

  • startup

    false

  • usb_spread

    true

Signatures

  • BlackNET

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

  • BlackNET payload 1 IoCs
  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f3a92b9516e65e056a871a67a6bf71d1102ecf3454b0b969d9603cb75304c5cN.exe
    "C:\Users\Admin\AppData\Local\Temp\8f3a92b9516e65e056a871a67a6bf71d1102ecf3454b0b969d9603cb75304c5cN.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • Windows security modification
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2792
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2940
    • C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Windows security modification
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2824
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab6902.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    80KB

    MD5

    82d0b898dd08b75f03a7be31c91a3d30

    SHA1

    1a9e50f6c1dd61dbc878d14ea69ea6b3808539d0

    SHA256

    8f3a92b9516e65e056a871a67a6bf71d1102ecf3454b0b969d9603cb75304c5c

    SHA512

    fee20ab4c4bf2f531891275d6e8f7938dc26270937a1397f3c035b6c9ee70590b2f75109927ee99928362f850ebbda790d78fc4479ade0cabe381bdce0ba4018

  • C:\Users\Admin\AppData\Local\Temp\Tar6914.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\YK037GCM73IB57R7FPLW.temp

    Filesize

    7KB

    MD5

    f9a5274eb0f02abd46e9ecf449efba7d

    SHA1

    ddf0b4bea087068a711dcfaeccbedf96a5fa7df9

    SHA256

    de413f4b6d344c2133a5e877d079576824b203683094533f5ae204717561aa43

    SHA512

    5b4d97b211eebf2c954e925404b9c006cc65c24bb1ac38cc1dcf75e023056dec2db86e3369899425ae9931bf5c40e87e90dcadc7ac7bbbbaa6f27b35c4459a1f

  • memory/1716-94-0x0000000001E80000-0x0000000001E88000-memory.dmp

    Filesize

    32KB

  • memory/1716-93-0x000000001B550000-0x000000001B832000-memory.dmp

    Filesize

    2.9MB

  • memory/2792-64-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-66-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-42-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-43-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-44-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-45-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-46-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-48-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-49-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-51-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-52-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-53-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-50-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-54-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-56-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-55-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-63-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-1-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-0-0x000007FEF665E000-0x000007FEF665F000-memory.dmp

    Filesize

    4KB

  • memory/2792-65-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-2-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-41-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-61-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-47-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-68-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-71-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-74-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-76-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-40-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-78-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-81-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-80-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-83-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-82-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-84-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-85-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-79-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-86-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-87-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2792-3-0x000007FEF63A0000-0x000007FEF6D3D000-memory.dmp

    Filesize

    9.6MB

  • memory/2940-67-0x0000000002340000-0x0000000002348000-memory.dmp

    Filesize

    32KB

  • memory/2940-62-0x000000001B720000-0x000000001BA02000-memory.dmp

    Filesize

    2.9MB