Analysis

  • max time kernel
    106s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 15:40

General

  • Target

    29bdd4d419993c95724ab63f121f66b0d08d534ae2374225bfb2d157df9ce307.xls

  • Size

    107KB

  • MD5

    670a5393dd99b91a04d3ec73ebc6bd54

  • SHA1

    a03133a8cc882263b1988f71056036a14aa3cf3b

  • SHA256

    29bdd4d419993c95724ab63f121f66b0d08d534ae2374225bfb2d157df9ce307

  • SHA512

    5e9f114ab3a56fe067ba775668e18af25db354dff1966cc84168a97038992f7f03f2c1aa9512826c590c8c3d38fad79168a9ee595b2cf727e2d1ccf9ff85f173

  • SSDEEP

    1536:qJJJlh5I8UdsqfUWVbrzQ7ONfTkR62ls088ScJtXwRbM2M/MBVzJ:yWVbrzQ7ETk9rjhJtXwa5kDzJ

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\29bdd4d419993c95724ab63f121f66b0d08d534ae2374225bfb2d157df9ce307.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:1376
    • 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:680
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:2044
    • 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:1064
    • 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:1704

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/680-219-0x0000000000000000-mapping.dmp
  • memory/1064-221-0x0000000000000000-mapping.dmp
  • memory/1376-222-0x00000000057A0000-0x00000000058A0000-memory.dmp
    Filesize

    1024KB

  • memory/1376-223-0x00000000057A0000-0x00000000058A0000-memory.dmp
    Filesize

    1024KB

  • memory/1376-58-0x0000000075091000-0x0000000075093000-memory.dmp
    Filesize

    8KB

  • memory/1376-54-0x000000002FFC1000-0x000000002FFC4000-memory.dmp
    Filesize

    12KB

  • memory/1376-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1376-55-0x0000000071451000-0x0000000071453000-memory.dmp
    Filesize

    8KB

  • memory/1376-392-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1376-57-0x000000007243D000-0x0000000072448000-memory.dmp
    Filesize

    44KB

  • memory/1376-393-0x000000007243D000-0x0000000072448000-memory.dmp
    Filesize

    44KB

  • memory/1376-269-0x00000000057A0000-0x00000000058A0000-memory.dmp
    Filesize

    1024KB

  • memory/1376-270-0x00000000057A0000-0x00000000058A0000-memory.dmp
    Filesize

    1024KB

  • memory/1376-387-0x00000000057A0000-0x00000000058A0000-memory.dmp
    Filesize

    1024KB

  • memory/1376-388-0x000000007243D000-0x0000000072448000-memory.dmp
    Filesize

    44KB

  • memory/1376-389-0x00000000057A0000-0x00000000058A0000-memory.dmp
    Filesize

    1024KB

  • memory/1376-390-0x00000000057A0000-0x00000000058A0000-memory.dmp
    Filesize

    1024KB

  • memory/1376-391-0x00000000057A0000-0x00000000058A0000-memory.dmp
    Filesize

    1024KB

  • memory/1704-220-0x0000000000000000-mapping.dmp
  • memory/2044-224-0x0000000000000000-mapping.dmp