Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-10-2024 20:30

General

  • Target

    41eba88da3b59ad7be8f21bc031c74d9341d5905b55d4de644eca7849a91e664.exe

  • Size

    80KB

  • MD5

    8253c8ad1432c453ccc6b26434436d9c

  • SHA1

    f73e24cdebbe4a27e314072a11b602911bba0775

  • SHA256

    41eba88da3b59ad7be8f21bc031c74d9341d5905b55d4de644eca7849a91e664

  • SHA512

    3cacb2ca124d3c7505cf6ffe0706e1cda3a4e7fcfdd18f2c779da353dd3ffb1e4092259c68e90e42035869c31295975e8c397d7e9f6088e4a0b026594a554d21

  • SSDEEP

    1536:dPvK/3zvzVQtCsscKvWYjzJxuOmb54vHTL6lm:diqCspGzVmb5uHv6lm

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\41eba88da3b59ad7be8f21bc031c74d9341d5905b55d4de644eca7849a91e664.exe
    "C:\Users\Admin\AppData\Local\Temp\41eba88da3b59ad7be8f21bc031c74d9341d5905b55d4de644eca7849a91e664.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:2092
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2796
    • 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:2560
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2344

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabDD27.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    80KB

    MD5

    8253c8ad1432c453ccc6b26434436d9c

    SHA1

    f73e24cdebbe4a27e314072a11b602911bba0775

    SHA256

    41eba88da3b59ad7be8f21bc031c74d9341d5905b55d4de644eca7849a91e664

    SHA512

    3cacb2ca124d3c7505cf6ffe0706e1cda3a4e7fcfdd18f2c779da353dd3ffb1e4092259c68e90e42035869c31295975e8c397d7e9f6088e4a0b026594a554d21

  • C:\Users\Admin\AppData\Local\Temp\TarDD4A.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

    8908651dd93b18b47a7af9f3c23adc8a

    SHA1

    4e0777a89090b3d8ba25025554fd8e73ede1ceac

    SHA256

    2be131f5f066ae9d3bfd12ded935e4858cd839212af1d1e5530d128817d639c4

    SHA512

    dfaf1b98574416def9c55bd50282ead80d14f13ae4bc3e373c6f45b8df0e3d87c358738192cf3a39acf8d4be21ae604cd13b4121028eaa887505c5d17d2322c0

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

    Filesize

    7KB

    MD5

    fac486660ce82d25c14a9f1402d87c70

    SHA1

    0838ef9ba1a6e5aceb013245a3efe21dd03da3ac

    SHA256

    d274c8f0320009ce5af7fdd678546c0513680645b834e9badf4c07d1c5dc8921

    SHA512

    c8f9af67c0ae4f28f7432d40c5b18b81aa552ed6338662359561228f809135760225c4d9a422fc3c2284bc106baea7a11a7f113271cfaab2daefbf0517f84556

  • memory/2092-53-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2092-59-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2092-42-0x000007FEF5F7E000-0x000007FEF5F7F000-memory.dmp

    Filesize

    4KB

  • memory/2092-45-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2092-48-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2092-3-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2092-51-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2092-52-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2092-44-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2092-0-0x000007FEF5F7E000-0x000007FEF5F7F000-memory.dmp

    Filesize

    4KB

  • memory/2092-54-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2092-43-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2092-60-0x000000001FC97000-0x000000001FC9B000-memory.dmp

    Filesize

    16KB

  • memory/2092-62-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2092-1-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2092-2-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2092-61-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2344-71-0x000000001B6F0000-0x000000001B9D2000-memory.dmp

    Filesize

    2.9MB

  • memory/2344-72-0x0000000001ED0000-0x0000000001ED8000-memory.dmp

    Filesize

    32KB

  • memory/2560-65-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2560-73-0x000007FEF5CC0000-0x000007FEF665D000-memory.dmp

    Filesize

    9.6MB

  • memory/2796-63-0x000000001B750000-0x000000001BA32000-memory.dmp

    Filesize

    2.9MB

  • memory/2796-64-0x0000000001EE0000-0x0000000001EE8000-memory.dmp

    Filesize

    32KB