Resubmissions

20-06-2024 14:53

240620-r9q6hsxenk 3

20-06-2024 14:48

240620-r6w8csshme 7

Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-06-2024 14:48

General

  • Target

    grpcurl.exe

  • Size

    23.9MB

  • MD5

    864681c29b610c270bd084572fc155b4

  • SHA1

    fcac34ac4b4e497d2a28e1040c41eb4ca1837123

  • SHA256

    d664a97a4c730f72f7b0d79d9f6a98433ef0c41510674da48c399cec3a76251d

  • SHA512

    976a8bb66618f5b989c34d1e10d4d7706240afd1e234c7dbcd10a1bdaf7e6aaaa654f061a2b0c42fbbfd23f62aae0b8494500de28d302cd13d9a72c69a76e2fb

  • SSDEEP

    98304:1Fkn6adyS0Pzukra2bntWYqnRSwLOr9D7eeclCjglLERcUDVhTyLPuWmwd:bkazR22bntWYM/Orc+fR0LPuWmwd

Malware Config

Signatures

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Modifies system executable filetype association 2 TTPs 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\grpcurl.exe
    "C:\Users\Admin\AppData\Local\Temp\grpcurl.exe"
    1⤵
      PID:536
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:736
      • C:\Users\Admin\AppData\Local\Microsoft\OneDrive\OneDrive.exe
        "C:\Users\Admin\AppData\Local\Microsoft\OneDrive\OneDrive.exe"
        1⤵
        • Modifies system executable filetype association
        • Checks processor information in registry
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:2128
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k LocalService -p -s fdPHost
        1⤵
          PID:1908

        Network

        MITRE ATT&CK Enterprise v15

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        Downloads