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Analysis

  • max time kernel
    101s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    14/02/2023, 19:31

General

  • Target

    064bb054746f0e36d8231a272d70980d.xls

  • Size

    173KB

  • MD5

    064bb054746f0e36d8231a272d70980d

  • SHA1

    4a21a7d20ca174a91a1c49d8885f9be0c5d20a4a

  • SHA256

    4bdee72a162f40422dfce6ac2d01ac25075bf1d0e6f641b27dea6858b092cee9

  • SHA512

    1d3cf8b37be6f5281e39f2b7ddfee3fe6a48f41d4704c39b1b901ce7d5b8d5573ec16e2f6ebebb78b33267b1d104fa390c527ed22ab6ed483fdfbc88188156a2

  • SSDEEP

    3072:0+IH1OxQKxy5gfaf8kDfsQmN3psWUZZR/Qse7sUguglgAQ3NRSw/JtXwkDKSZ:0+IH1OxQKxy5gfaf8kDfsQmN3psWUZZY

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 3 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Deletes itself 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\064bb054746f0e36d8231a272d70980d.xls
    1⤵
    • Deletes itself
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: RenamesItself
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1404
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1680
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:856
        • C:\Windows\SysWOW64\attrib.exe
          attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
          3⤵
          • Views/modifies file attributes
          PID:816
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        2⤵
        • Process spawned unexpected child process
        PID:1332
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        2⤵
        • Process spawned unexpected child process
        PID:1220

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1404-94-0x000000000043A000-0x0000000000443000-memory.dmp

      Filesize

      36KB

    • memory/1404-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1404-102-0x000000007219D000-0x00000000721A8000-memory.dmp

      Filesize

      44KB

    • memory/1404-61-0x000000000043A000-0x0000000000443000-memory.dmp

      Filesize

      36KB

    • memory/1404-62-0x000000000043A000-0x0000000000443000-memory.dmp

      Filesize

      36KB

    • memory/1404-63-0x000000000043A000-0x0000000000443000-memory.dmp

      Filesize

      36KB

    • memory/1404-64-0x000000000043A000-0x0000000000443000-memory.dmp

      Filesize

      36KB

    • memory/1404-65-0x000000000043A000-0x0000000000443000-memory.dmp

      Filesize

      36KB

    • memory/1404-66-0x000000000043A000-0x0000000000443000-memory.dmp

      Filesize

      36KB

    • memory/1404-58-0x0000000075451000-0x0000000075453000-memory.dmp

      Filesize

      8KB

    • memory/1404-57-0x000000007219D000-0x00000000721A8000-memory.dmp

      Filesize

      44KB

    • memory/1404-101-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1404-55-0x00000000711B1000-0x00000000711B3000-memory.dmp

      Filesize

      8KB

    • memory/1404-93-0x000000000043A000-0x0000000000443000-memory.dmp

      Filesize

      36KB

    • memory/1404-54-0x000000002FB51000-0x000000002FB54000-memory.dmp

      Filesize

      12KB

    • memory/1404-95-0x000000000043A000-0x0000000000443000-memory.dmp

      Filesize

      36KB

    • memory/1404-96-0x000000000043A000-0x0000000000443000-memory.dmp

      Filesize

      36KB

    • memory/1404-98-0x000000000043A000-0x0000000000443000-memory.dmp

      Filesize

      36KB

    • memory/1404-97-0x000000000043A000-0x0000000000443000-memory.dmp

      Filesize

      36KB

    • memory/1404-99-0x000000006C021000-0x000000006C023000-memory.dmp

      Filesize

      8KB

    • memory/1404-100-0x000000007219D000-0x00000000721A8000-memory.dmp

      Filesize

      44KB

    • memory/1680-60-0x000007FEFBAB1000-0x000007FEFBAB3000-memory.dmp

      Filesize

      8KB