Analysis

  • max time kernel
    100s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 08:09

General

  • Target

    d41092a8d5a00957e4a5f5c33322a079b8092ce62c372ea5743c9b035e2e1386.xls

  • Size

    87KB

  • MD5

    2467ef25529dccaec9c196e1f8124f7d

  • SHA1

    9a686190a1d3f1ef347ac5c66a43ef3a8bd94614

  • SHA256

    d41092a8d5a00957e4a5f5c33322a079b8092ce62c372ea5743c9b035e2e1386

  • SHA512

    1f8aab6b1435c311d8db19576b1f2248fa003c52ad87e4b4f8d307961b10fe181a6c65b8bf118bb8dc6c2f9abd884af18908469c413ed422fa53d0ab18acf447

  • SSDEEP

    1536:FIljUj4HMlJS2jcc0lbxOvTgZZ4cY7nJdFoOGIWWt2XeouG6:SHt2jcc0lbxOrDpEOZG6

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\d41092a8d5a00957e4a5f5c33322a079b8092ce62c372ea5743c9b035e2e1386.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:912
    • 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:268
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:340
    • 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:828
    • 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:1516

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/268-219-0x0000000000000000-mapping.dmp
  • memory/340-222-0x0000000000000000-mapping.dmp
  • memory/828-220-0x0000000000000000-mapping.dmp
  • memory/912-74-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-383-0x00000000722DD000-0x00000000722E8000-memory.dmp
    Filesize

    44KB

  • memory/912-59-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-60-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-61-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-62-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-63-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-64-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-75-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-66-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-67-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-68-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-69-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-70-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-71-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-72-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-73-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-54-0x000000002F501000-0x000000002F504000-memory.dmp
    Filesize

    12KB

  • memory/912-65-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-58-0x0000000076091000-0x0000000076093000-memory.dmp
    Filesize

    8KB

  • memory/912-82-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-80-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-81-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-79-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-78-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-76-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-83-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-86-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-85-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-84-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-87-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-109-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/912-57-0x00000000722DD000-0x00000000722E8000-memory.dmp
    Filesize

    44KB

  • memory/912-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/912-385-0x00000000722DD000-0x00000000722E8000-memory.dmp
    Filesize

    44KB

  • memory/912-55-0x00000000712F1000-0x00000000712F3000-memory.dmp
    Filesize

    8KB

  • memory/912-77-0x0000000000632000-0x0000000000636000-memory.dmp
    Filesize

    16KB

  • memory/1516-221-0x0000000000000000-mapping.dmp