Analysis

  • max time kernel
    120s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20-10-2024 20:22

General

  • Target

    c3de198ab18aa8d4a4551d118737f08689d9bd117c6f3846361f57307f43ab29N.exe

  • Size

    80KB

  • MD5

    06254a7cda0e4837742108417185b3e0

  • SHA1

    634cf5ec191c7b2481d2d371108302eda1d7f3d6

  • SHA256

    c3de198ab18aa8d4a4551d118737f08689d9bd117c6f3846361f57307f43ab29

  • SHA512

    2d486bcc54ed59cfefc4533bba9e43a2cbe4a705dc163b06cb3e27a04fe9c849a355d90203cc0cb39221db252359b47728d6cde9be7f35b5186349ccb26c9efd

  • SSDEEP

    1536:dPvK/3zvzVQtCsscKvWljzJxuOmb54vHTL6lm:diqCsp1zVmb5uHv6lm

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\c3de198ab18aa8d4a4551d118737f08689d9bd117c6f3846361f57307f43ab29N.exe
    "C:\Users\Admin\AppData\Local\Temp\c3de198ab18aa8d4a4551d118737f08689d9bd117c6f3846361f57307f43ab29N.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:1752
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2768
    • 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:476
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    80KB

    MD5

    06254a7cda0e4837742108417185b3e0

    SHA1

    634cf5ec191c7b2481d2d371108302eda1d7f3d6

    SHA256

    c3de198ab18aa8d4a4551d118737f08689d9bd117c6f3846361f57307f43ab29

    SHA512

    2d486bcc54ed59cfefc4533bba9e43a2cbe4a705dc163b06cb3e27a04fe9c849a355d90203cc0cb39221db252359b47728d6cde9be7f35b5186349ccb26c9efd

  • C:\Users\Admin\AppData\Local\Temp\TarBD0D.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    Filesize

    7KB

    MD5

    91043ee849f76f205e1ffb2bced23860

    SHA1

    383fa49869c546ad5fe25f06d3830725829ed689

    SHA256

    8c51ef31106416f6c0b74f77b34b901f67bb1f84ddd9f11a853b98f5e63be063

    SHA512

    51336b190a6fb479cba225a60f0a82b83336c56ec47257d720092fee609865bcdfef3008b46ffcd619099818587d221647d57204069d75148ca5f6a308455a83

  • memory/1752-42-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-69-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-40-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-41-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-0-0x000007FEF549E000-0x000007FEF549F000-memory.dmp

    Filesize

    4KB

  • memory/1752-43-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-48-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-1-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-73-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-50-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-52-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-53-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-54-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-55-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-56-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-59-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-58-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-57-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-67-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-66-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-2-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-70-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-3-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1752-68-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2028-80-0x0000000002080000-0x0000000002088000-memory.dmp

    Filesize

    32KB

  • memory/2028-79-0x000000001B590000-0x000000001B872000-memory.dmp

    Filesize

    2.9MB

  • memory/2768-72-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2768-71-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2768-51-0x0000000001BD0000-0x0000000001BD8000-memory.dmp

    Filesize

    32KB

  • memory/2768-49-0x000000001B4C0000-0x000000001B7A2000-memory.dmp

    Filesize

    2.9MB