Analysis

  • max time kernel
    148s
  • max time network
    154s
  • 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城市中学.xls

  • Size

    143KB

  • MD5

    58b2fe2ccfd1a8b74ab0ea928cdfd8e2

  • SHA1

    e1911d4e2dd11414aaf7ba73fe3332e10772a327

  • SHA256

    ec344428a3d915f86e93e75d51836c029a12e728a64ecd1734bf4985cf3d32a3

  • SHA512

    50986f91831ac2d062c224745e3d9346b32b6a0b3b13e0f17b7bc24e2e68facfb42d2df833eca5ec037ecce3452fe105c1a82014badb105624bd5ee70153dbe1

  • SSDEEP

    3072:Lss93EkqzdTKWIIL2j33c0lbxOslU0JtXwXJ/:7ind1iQ

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 FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 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城市中学.xls"
    1⤵
    • Deletes itself
    • Checks processor information in registry
    • Enumerates system info in registry
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2968
    • 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:440
      • C:\Windows\system32\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:5064
    • 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:3860
    • 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:928

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城市中学.xls

    Filesize

    170KB

    MD5

    af6614572d5ad580229f0fc9e9361829

    SHA1

    3a495aa4a6ca0eb990b178117a68c6a892ccb225

    SHA256

    1f5c4d8652d37be60b183e29f634cae884cf9b2b4836223d1eb85dc5916b8c62

    SHA512

    b7e411365f4ca27e645e7f2a8cdb3f57f26c0634e04dda55a5f6a27251c39a526e46f9bb026b18c2d34f58823630b3ec2fc0c4334844c37597fa53c4de2fb50d

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

    Filesize

    3KB

    MD5

    de9c19d811816db54ca18fb7877145bf

    SHA1

    a91b0542efdccc99feb219ed9d4a337dbf7d0ee6

    SHA256

    de55d8f8cfca1632a4c05bbe80e17f8f7b59336932a2577338b0203ea8e25ff7

    SHA512

    031bb7bc5efce6b96b9651a2ab06caa54961ec8b8d9684b081f686be7984e4e95c1a17302c87bf56611a0bb8cbebcf398a470f945fecce9885421760bb0b4c18

  • memory/2968-16-0x00007FFC161C0000-0x00007FFC161D0000-memory.dmp

    Filesize

    64KB

  • memory/2968-11-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-4-0x00007FFC184F0000-0x00007FFC18500000-memory.dmp

    Filesize

    64KB

  • memory/2968-46-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-7-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-6-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-5-0x00007FFC184F0000-0x00007FFC18500000-memory.dmp

    Filesize

    64KB

  • memory/2968-47-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-10-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-13-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-12-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-9-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-14-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-48-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-0-0x00007FFC184F0000-0x00007FFC18500000-memory.dmp

    Filesize

    64KB

  • memory/2968-30-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-8-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-3-0x00007FFC5850D000-0x00007FFC5850E000-memory.dmp

    Filesize

    4KB

  • memory/2968-15-0x00007FFC161C0000-0x00007FFC161D0000-memory.dmp

    Filesize

    64KB

  • memory/2968-45-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-44-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-35-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-61-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-1-0x00007FFC184F0000-0x00007FFC18500000-memory.dmp

    Filesize

    64KB

  • memory/2968-102-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-103-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-107-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-2-0x00007FFC184F0000-0x00007FFC18500000-memory.dmp

    Filesize

    64KB

  • memory/2968-127-0x00007FFC184F0000-0x00007FFC18500000-memory.dmp

    Filesize

    64KB

  • memory/2968-128-0x00007FFC184F0000-0x00007FFC18500000-memory.dmp

    Filesize

    64KB

  • memory/2968-130-0x00007FFC184F0000-0x00007FFC18500000-memory.dmp

    Filesize

    64KB

  • memory/2968-129-0x00007FFC184F0000-0x00007FFC18500000-memory.dmp

    Filesize

    64KB

  • memory/2968-131-0x00007FFC58470000-0x00007FFC58665000-memory.dmp

    Filesize

    2.0MB