Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-10-2024 23:25

General

  • Target

    620a2009c1e6c41da1e8afd565494956609883a1838d014d844a7fd24860d728N.exe

  • Size

    80KB

  • MD5

    2c7e09eaa095241bd7f879a97e5e9dd0

  • SHA1

    042a40bf2076761dd4a6106761a99e65e0ede677

  • SHA256

    620a2009c1e6c41da1e8afd565494956609883a1838d014d844a7fd24860d728

  • SHA512

    49ebc78563e367252548613771d195bbd075507b8be990e94526112e4a55fa63fc8d4779d819992a848a914245ea5c17dbf6ab7779369c2fb4095cb1bc79c57e

  • SSDEEP

    1536:dPvK/3zvzVQtCsscKvWPjzJxuOmb54vHTL6lm:diqCsprzVmb5uHv6lm

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\620a2009c1e6c41da1e8afd565494956609883a1838d014d844a7fd24860d728N.exe
    "C:\Users\Admin\AppData\Local\Temp\620a2009c1e6c41da1e8afd565494956609883a1838d014d844a7fd24860d728N.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:2080
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2636
    • 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:2736
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1916

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabD98F.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    80KB

    MD5

    2c7e09eaa095241bd7f879a97e5e9dd0

    SHA1

    042a40bf2076761dd4a6106761a99e65e0ede677

    SHA256

    620a2009c1e6c41da1e8afd565494956609883a1838d014d844a7fd24860d728

    SHA512

    49ebc78563e367252548613771d195bbd075507b8be990e94526112e4a55fa63fc8d4779d819992a848a914245ea5c17dbf6ab7779369c2fb4095cb1bc79c57e

  • C:\Users\Admin\AppData\Local\Temp\TarD9B1.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\E8L7Z4G4OEU7TBWO3I29.temp

    Filesize

    7KB

    MD5

    22805972e6dee9e9341afe10214b52b5

    SHA1

    a2410b90dd3347a88920cc024c82e9175c474fe5

    SHA256

    4b8479df1119a86ec8aefb1440d7729c4f461c49a0528a909bb08315577ceebe

    SHA512

    ff4b6e363c621f67977c28bb3b4f8b3eec64eef392c12018f7dca85b6fce2a3cb258e72985a489c827b7dec563e677d78453ed8334fee3549fb0edff0dba3da5

  • memory/1916-72-0x000000001B5D0000-0x000000001B8B2000-memory.dmp

    Filesize

    2.9MB

  • memory/1916-73-0x0000000001F80000-0x0000000001F88000-memory.dmp

    Filesize

    32KB

  • memory/2080-50-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-62-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-42-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-1-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-2-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-47-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-0-0x000007FEF661E000-0x000007FEF661F000-memory.dmp

    Filesize

    4KB

  • memory/2080-51-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-54-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-59-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-40-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-41-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-61-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-60-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-64-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-63-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-65-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2080-66-0x000000001FE97000-0x000000001FE9B000-memory.dmp

    Filesize

    16KB

  • memory/2080-3-0x000007FEF6360000-0x000007FEF6CFD000-memory.dmp

    Filesize

    9.6MB

  • memory/2636-48-0x000000001B610000-0x000000001B8F2000-memory.dmp

    Filesize

    2.9MB

  • memory/2636-49-0x0000000002250000-0x0000000002258000-memory.dmp

    Filesize

    32KB