Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07-09-2024 07:08

General

  • Target

    中小学名单/2012农村中学.xls

  • Size

    147KB

  • MD5

    884d042fdba1b38f60bd07b60d7fc1c1

  • SHA1

    fd5dcb15aa13e3d83ec000b22a018305f06adbab

  • SHA256

    c3fd1e89139699f1172cec9064ed64187b880c2ca35a92c330126ac0f9bf659d

  • SHA512

    337a1edaa3b9cd63233e9fa8f1d9e27e76449e0c861fcaf39a36a9c154b98bd6451c1894d49342a37a032ef1be3cdb77c3b58479d82e5254dc65fe910b472bee

  • SSDEEP

    3072:vRfzWki0BzuM7MY4O0rQt2jEc0lbxOs2U0J6XwYyJ:G0BzuoSMrih

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
  • Indicator Removal: File Deletion 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 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\中小学名单\2012农村中学.xls
    1⤵
    • Deletes itself
    • System Location Discovery: System Language Discovery
    • Enumerates system info in registry
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2704
    • 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
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2492
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2512
    • 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
      • System Location Discovery: System Language Discovery
      PID:2176
    • 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
      • System Location Discovery: System Language Discovery
      PID:2152

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2704-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2704-1-0x000000007243D000-0x0000000072448000-memory.dmp

    Filesize

    44KB

  • memory/2704-30-0x0000000006330000-0x0000000006430000-memory.dmp

    Filesize

    1024KB

  • memory/2704-76-0x0000000006330000-0x0000000006430000-memory.dmp

    Filesize

    1024KB

  • memory/2704-75-0x0000000006330000-0x0000000006430000-memory.dmp

    Filesize

    1024KB

  • memory/2704-329-0x000000007243D000-0x0000000072448000-memory.dmp

    Filesize

    44KB

  • memory/2704-330-0x0000000006330000-0x0000000006430000-memory.dmp

    Filesize

    1024KB

  • memory/2704-333-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2704-334-0x000000007243D000-0x0000000072448000-memory.dmp

    Filesize

    44KB