Analysis

  • max time kernel
    46s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2022 13:25

Errors

Reason
Machine shutdown

General

  • Target

    338ca25a081f933afb19d8230c9a6dd1b7ebcf9a2bb48fb664d77bdc8eb3388d.exe

  • Size

    85KB

  • MD5

    0483e9db75d3a1f8219d2bc8445b9fb3

  • SHA1

    b81e81683d0d48798e3c3bdaaf8d961695ea3cdc

  • SHA256

    338ca25a081f933afb19d8230c9a6dd1b7ebcf9a2bb48fb664d77bdc8eb3388d

  • SHA512

    ebaf399215ab0065cc6669dc45e3e19c796726d8a46305879520578045e1366d9d191924c6878e7f6a15d75ad5eea93a2290e48a8168e5f7052b2312e26bbd42

  • SSDEEP

    1536:vXLSNZSOyFBWewor4ZXkl3CkSRpliHyPm:/utyCfVxIyLiS

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\338ca25a081f933afb19d8230c9a6dd1b7ebcf9a2bb48fb664d77bdc8eb3388d.exe
    "C:\Users\Admin\AppData\Local\Temp\338ca25a081f933afb19d8230c9a6dd1b7ebcf9a2bb48fb664d77bdc8eb3388d.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1920
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 271301500 /t REG_SZ /d "%userprofile%\271301500.exe" /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1972
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 271301500 /t REG_SZ /d "C:\Users\Admin\271301500.exe" /f
        3⤵
        • Adds Run key to start application
        PID:1764
    • C:\Windows\SysWOW64\shutdown.exe
      "C:\Windows\System32\shutdown.exe" /r /f /t 3
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1348
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\338CA2~1.EXE > nul
      2⤵
      • Deletes itself
      PID:1740
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x0
    1⤵
      PID:1428
    • C:\Windows\system32\LogonUI.exe
      "LogonUI.exe" /flags:0x1
      1⤵
        PID:1816

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/1348-59-0x0000000000000000-mapping.dmp

      • memory/1428-61-0x000007FEFC621000-0x000007FEFC623000-memory.dmp

        Filesize

        8KB

      • memory/1740-60-0x0000000000000000-mapping.dmp

      • memory/1764-58-0x0000000000000000-mapping.dmp

      • memory/1920-54-0x0000000076181000-0x0000000076183000-memory.dmp

        Filesize

        8KB

      • memory/1920-55-0x00000000002B0000-0x00000000002C9000-memory.dmp

        Filesize

        100KB

      • memory/1920-56-0x0000000000400000-0x0000000000419000-memory.dmp

        Filesize

        100KB

      • memory/1972-57-0x0000000000000000-mapping.dmp