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Analysis

  • max time kernel
    120s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 04:41

General

  • Target

    289768c06f79b0a4d857223da6e21109.xls

  • Size

    190KB

  • MD5

    289768c06f79b0a4d857223da6e21109

  • SHA1

    c7c4efc5cd0588fbdfa792a0d2ab37b99553a6cf

  • SHA256

    35e52ee5e850c02e9cd7f9ec2bd8a1a9d0438ba6c07a9675b2dab2fcf068afdd

  • SHA512

    fb928633eaa6c0975a8771e2ea7c5c205af28e5e8ec96981f336c626959a6a01635894b03fa99f67d270210fad380f0c3b79ede73c7033769b36b526b154b97a

  • SSDEEP

    3072:EpOilrhlRtQWVbrzQ7LbTkDEAJtXwn5kqsPNab:E8q3

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 SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 16 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\289768c06f79b0a4d857223da6e21109.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 SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1708
    • 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:1500
    • 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:1504
    • 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:564
  • C:\Windows\SysWOW64\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    1⤵
    • Views/modifies file attributes
    PID:1372

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1708-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1708-1-0x00000000729DD000-0x00000000729E8000-memory.dmp

    Filesize

    44KB

  • memory/1708-5-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-32-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-34-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-69-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-88-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-102-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-169-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-125-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-170-0x00000000729DD000-0x00000000729E8000-memory.dmp

    Filesize

    44KB

  • memory/1708-171-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-172-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-173-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-174-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-175-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-176-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-199-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-221-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-222-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-223-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-224-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-249-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-272-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-296-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-317-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-345-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-346-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-347-0x0000000005F70000-0x0000000006070000-memory.dmp

    Filesize

    1024KB

  • memory/1708-351-0x00000000729DD000-0x00000000729E8000-memory.dmp

    Filesize

    44KB