Analysis

  • max time kernel
    61s
  • max time network
    3s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-10-2024 10:55

Errors

Reason
Machine shutdown

General

  • Target

    9998034b4a25a37c86651d85306be7b1fe949be3df3ccbb0ede943bbef414f8a.exe

  • Size

    301KB

  • MD5

    27ed2ca1b852640d6cd2646672a90f74

  • SHA1

    5869b882e35194e3f8536e1893055ba5eb2725b2

  • SHA256

    9998034b4a25a37c86651d85306be7b1fe949be3df3ccbb0ede943bbef414f8a

  • SHA512

    9205238bd48e051d57fe66aba8dfc2367ec6c6c1e1c932e2af7353331820741c6d008547bb427bca19d19c3565765d0370af085523071f25ebf68e61f3088f2e

  • SSDEEP

    6144:lCburfqKlylZXGSIqpMVsKnY4aF/5T9X:lC6hl3SIqpK5IB

Malware Config

Signatures

  • Possible privilege escalation attempt 2 IoCs
  • Modifies file permissions 1 TTPs 2 IoCs
  • File and Directory Permissions Modification: Windows File and Directory Permissions Modification 1 TTPs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in System32 directory 3 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 26 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9998034b4a25a37c86651d85306be7b1fe949be3df3ccbb0ede943bbef414f8a.exe
    "C:\Users\Admin\AppData\Local\Temp\9998034b4a25a37c86651d85306be7b1fe949be3df3ccbb0ede943bbef414f8a.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c takeown /f "C:\Windows\System32\ntoskrnl.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3984
      • C:\Windows\system32\takeown.exe
        takeown /f "C:\Windows\System32\ntoskrnl.exe"
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        • Suspicious use of AdjustPrivilegeToken
        PID:4660
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "C:\Windows\System32\ntoskrnl.exe" /grant Admin:F
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4976
      • C:\Windows\system32\icacls.exe
        icacls "C:\Windows\System32\ntoskrnl.exe" /grant Admin:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:2976
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c del "C:\Windows\System32\ntoskrnl.exe" /f /s /q
      2⤵
        PID:388
    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
      1⤵
      • Drops file in System32 directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:3044
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
      1⤵
        PID:4076
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
        1⤵
          PID:3328
        • C:\Windows\System32\svchost.exe
          C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
          1⤵
            PID:3452

          Network

          MITRE ATT&CK Enterprise v15

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