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 02:53

General

  • Target

    4cfd26197f714246d5fe4d2f416babf1d2e72002f40e5eb885247965fca5c335N.exe

  • Size

    80KB

  • MD5

    d4a8afd3a1d7e5586a9b0c5100767800

  • SHA1

    d89abc35e73190edfdc60e5d581e370dea078556

  • SHA256

    4cfd26197f714246d5fe4d2f416babf1d2e72002f40e5eb885247965fca5c335

  • SHA512

    d7b1905f28279a53f1c8fce9f983fba2d2e65fdb47e14bb97d4805ea0c3f6bed4f460a4fb57ff2c18d4d35abf31d16e9ae80c30d1ad92241aa097dc67d78d6f6

  • SSDEEP

    1536:dPvK/3zvzVQtCsscKvWIjzJxuOmb54vHTL6lm:diqCsp2zVmb5uHv6lm

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\4cfd26197f714246d5fe4d2f416babf1d2e72002f40e5eb885247965fca5c335N.exe
    "C:\Users\Admin\AppData\Local\Temp\4cfd26197f714246d5fe4d2f416babf1d2e72002f40e5eb885247965fca5c335N.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:2280
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2896
    • 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:1316
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1268

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabFE9C.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    80KB

    MD5

    d4a8afd3a1d7e5586a9b0c5100767800

    SHA1

    d89abc35e73190edfdc60e5d581e370dea078556

    SHA256

    4cfd26197f714246d5fe4d2f416babf1d2e72002f40e5eb885247965fca5c335

    SHA512

    d7b1905f28279a53f1c8fce9f983fba2d2e65fdb47e14bb97d4805ea0c3f6bed4f460a4fb57ff2c18d4d35abf31d16e9ae80c30d1ad92241aa097dc67d78d6f6

  • C:\Users\Admin\AppData\Local\Temp\TarFEAF.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

    aaeeadbc8f445e0e5b1d927531c007d3

    SHA1

    e09e91c0245ee88db29338f239c5d5b7cafc96c0

    SHA256

    9193ecdc9acec9d98827ca27a0cf24ab7022b4806f4ae4e8b7f4a5a855499a29

    SHA512

    e78369ad09d5db3d93830b713e72737fcfbae4d22812592c1b9c9410ec3edb10f778b1baf2a4346d0def72897db5a4d695724855ea54ed2a30821b832d9e64f0

  • memory/1268-89-0x00000000028F0000-0x00000000028F8000-memory.dmp

    Filesize

    32KB

  • memory/1268-88-0x000000001B6C0000-0x000000001B9A2000-memory.dmp

    Filesize

    2.9MB

  • memory/2280-72-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-65-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-41-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-50-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-1-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-2-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-47-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-51-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-53-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-52-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-54-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-55-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-62-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-61-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-60-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-59-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-58-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-57-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-56-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-42-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-40-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-68-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-71-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-73-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-0-0x000007FEF5E7E000-0x000007FEF5E7F000-memory.dmp

    Filesize

    4KB

  • memory/2280-74-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-75-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-76-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-78-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-77-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-81-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-80-0x000000001F3BF000-0x000000001F3C3000-memory.dmp

    Filesize

    16KB

  • memory/2280-79-0x000000001F3AF000-0x000000001F3B3000-memory.dmp

    Filesize

    16KB

  • memory/2280-82-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2280-3-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2896-48-0x000000001B740000-0x000000001BA22000-memory.dmp

    Filesize

    2.9MB

  • memory/2896-49-0x0000000001C00000-0x0000000001C08000-memory.dmp

    Filesize

    32KB