Analysis

  • max time kernel
    109s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:23

General

  • Target

    2014年自治区公开考试录用公务员阿勒泰地区新增社会保险局职位表.xls

  • Size

    91KB

  • MD5

    6e0d34564c64af625bd9642bdc8777dd

  • SHA1

    3505949f52fd308d458bae99bf4a06aff8fa3815

  • SHA256

    c0e4122ad7718c4c853d56038390a2958297444a4a88f9a773df325c907d6d07

  • SHA512

    5f433844bbd4e8e1f2eb9b2777bd2c568acdddcc87f1ca70d5a18e937a9e5591d3bb3ab4dfe3cc613a12e34fd7b5b5e0dcdbd5b302c7f8107fa79d7bd3846ecf

  • SSDEEP

    1536:hkkkkIwU8OgPJlHTr2jcc0lbxOvTgZH4cY7nJdFoOGIWgt2XKBwu:HPJJ2jcc0lbxOrtpyamu

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 3 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\2014年自治区公开考试录用公务员阿勒泰地区新增社会保险局职位表.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:1192
    • 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:984
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1608
    • 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:940
    • 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:652

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Defense Evasion

Modify Registry

1
T1112

Hidden Files and Directories

1
T1158

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/652-215-0x0000000000000000-mapping.dmp
  • memory/940-214-0x0000000000000000-mapping.dmp
  • memory/984-213-0x0000000000000000-mapping.dmp
  • memory/1192-70-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-79-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-60-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-59-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-61-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-63-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-74-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-64-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-65-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-66-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-67-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-69-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-68-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-54-0x000000002F741000-0x000000002F744000-memory.dmp
    Filesize

    12KB

  • memory/1192-373-0x0000000072B6D000-0x0000000072B78000-memory.dmp
    Filesize

    44KB

  • memory/1192-72-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-62-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-73-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-75-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-76-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-77-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-78-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-58-0x0000000076701000-0x0000000076703000-memory.dmp
    Filesize

    8KB

  • memory/1192-80-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-81-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-103-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-57-0x0000000072B6D000-0x0000000072B78000-memory.dmp
    Filesize

    44KB

  • memory/1192-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1192-55-0x0000000071B81000-0x0000000071B83000-memory.dmp
    Filesize

    8KB

  • memory/1192-71-0x000000000043B000-0x000000000043F000-memory.dmp
    Filesize

    16KB

  • memory/1192-371-0x0000000072B6D000-0x0000000072B78000-memory.dmp
    Filesize

    44KB

  • memory/1608-216-0x0000000000000000-mapping.dmp