Analysis

  • max time kernel
    102s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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.

  • Suspicious Office macro 1 IoCs

    Office document equipped with 4.0 macros.

  • Deletes itself 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\中小学名单\2012农村中学.xls"
    1⤵
    • Deletes itself
    • Checks processor information in registry
    • Enumerates system info in registry
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:668
    • C:\Windows\system32\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:4528
      • C:\Windows\system32\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:868
    • C:\Windows\system32\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:3652
    • C:\Windows\system32\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:2868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\中小学名单\2012农村中学.xls

    Filesize

    175KB

    MD5

    8a4dad26f81c62dd31ff2c23e15428de

    SHA1

    4035cbf0cf47b308c9d1d0cff7e4821c03bde801

    SHA256

    1253b072c9822cff7687737f9eda4b5d71370a1c398153f61dbc04c6ff0a0c4e

    SHA512

    64aaacc61275efcd597e9cdbb168a9f2a07f5b3499099a7a6653d5074b0315edbc38801cd73c953721361d7d4362bcfc310953354a3b172551a88ae3b325bfe4

  • memory/668-47-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-110-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-4-0x00007FF9C5610000-0x00007FF9C5620000-memory.dmp

    Filesize

    64KB

  • memory/668-6-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-9-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-10-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-11-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-12-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-13-0x00007FF9C2F40000-0x00007FF9C2F50000-memory.dmp

    Filesize

    64KB

  • memory/668-8-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-7-0x00007FF9C5610000-0x00007FF9C5620000-memory.dmp

    Filesize

    64KB

  • memory/668-5-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-2-0x00007FF9C5610000-0x00007FF9C5620000-memory.dmp

    Filesize

    64KB

  • memory/668-59-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-16-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-15-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-14-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-18-0x00007FF9C2F40000-0x00007FF9C2F50000-memory.dmp

    Filesize

    64KB

  • memory/668-134-0x00007FF9C5610000-0x00007FF9C5620000-memory.dmp

    Filesize

    64KB

  • memory/668-3-0x00007FF9C5610000-0x00007FF9C5620000-memory.dmp

    Filesize

    64KB

  • memory/668-17-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-61-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-60-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-62-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-25-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-0-0x00007FFA0562D000-0x00007FFA0562E000-memory.dmp

    Filesize

    4KB

  • memory/668-104-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-103-0x00007FFA0562D000-0x00007FFA0562E000-memory.dmp

    Filesize

    4KB

  • memory/668-105-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-106-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-107-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-108-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-109-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-1-0x00007FF9C5610000-0x00007FF9C5620000-memory.dmp

    Filesize

    64KB

  • memory/668-132-0x00007FF9C5610000-0x00007FF9C5620000-memory.dmp

    Filesize

    64KB

  • memory/668-133-0x00007FF9C5610000-0x00007FF9C5620000-memory.dmp

    Filesize

    64KB

  • memory/668-135-0x00007FF9C5610000-0x00007FF9C5620000-memory.dmp

    Filesize

    64KB

  • memory/668-46-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB

  • memory/668-136-0x00007FFA05590000-0x00007FFA05785000-memory.dmp

    Filesize

    2.0MB