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Analysis

  • max time kernel
    38s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26/10/2024, 14:21

General

  • Target

    d035b6a6cf9e2756a7e65c0f9a07858e710839ce26fc067cc0e9be6d9c0deceaN.exe

  • Size

    70KB

  • MD5

    fd3204b0ffe8fcee7303a721517e59c0

  • SHA1

    734be202dcbc467b52ffdacc271d9bba7d86a66b

  • SHA256

    d035b6a6cf9e2756a7e65c0f9a07858e710839ce26fc067cc0e9be6d9c0decea

  • SHA512

    19a9e45f3f732a46d559d8a48eab552545eb9cdde69d9322d0c27b2120714b27ada27e58436ef0f80a1f77d15eb9ba46700c376d79ccd07136152089eca77e70

  • SSDEEP

    1536:gFTnqpKxynVwGeifCSzTPb542HkLbvJfxa:gFTdGeifrvb59H+bvJ5a

Malware Config

Extracted

Family

blacknet

Botnet

HacKed

C2

https://lovegunny.net

Mutex

BN[tuFcXBCi-9342877]

Attributes
  • antivm

    true

  • elevate_uac

    false

  • install_name

    WindowsUpdate.exe

  • splitter

    |BN|

  • start_name

    2965b7eabf9eb6ce83de7d2260ab71ba

  • startup

    true

  • usb_spread

    true

Signatures

  • BlackNET

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

  • BlackNET payload 1 IoCs
  • Blacknet family
  • 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.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 3 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 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d035b6a6cf9e2756a7e65c0f9a07858e710839ce26fc067cc0e9be6d9c0deceaN.exe
    "C:\Users\Admin\AppData\Local\Temp\d035b6a6cf9e2756a7e65c0f9a07858e710839ce26fc067cc0e9be6d9c0deceaN.exe"
    1⤵
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2560
    • C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      PID:1936

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabD7F9.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    70KB

    MD5

    fd3204b0ffe8fcee7303a721517e59c0

    SHA1

    734be202dcbc467b52ffdacc271d9bba7d86a66b

    SHA256

    d035b6a6cf9e2756a7e65c0f9a07858e710839ce26fc067cc0e9be6d9c0decea

    SHA512

    19a9e45f3f732a46d559d8a48eab552545eb9cdde69d9322d0c27b2120714b27ada27e58436ef0f80a1f77d15eb9ba46700c376d79ccd07136152089eca77e70

  • C:\Users\Admin\AppData\Local\Temp\TarD81C.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • memory/1936-66-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1936-72-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1936-71-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1936-70-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/1936-67-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-56-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-57-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-45-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-53-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-54-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-52-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-51-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-50-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-0-0x000007FEF549E000-0x000007FEF549F000-memory.dmp

    Filesize

    4KB

  • memory/2560-55-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-59-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-60-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-58-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-47-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-63-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-62-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-65-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-64-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-61-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-49-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-68-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-13-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-69-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-3-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-2-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-1-0x000007FEF51E0000-0x000007FEF5B7D000-memory.dmp

    Filesize

    9.6MB