Analysis

  • max time kernel
    104s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 11:18

General

  • Target

    4c5012e09502fe970287af43437a911ea116959eb1cc345428c29c2460c66f94.xls

  • Size

    117KB

  • MD5

    24e671ce84223a3906fcc0929acc9661

  • SHA1

    2f9b2a679333367cc2a71c07eee9086848167bb1

  • SHA256

    4c5012e09502fe970287af43437a911ea116959eb1cc345428c29c2460c66f94

  • SHA512

    bb5db75c0b3f2c7342e9e349c71964aaa7e4bb119501a80b007661ac9d03bd33c053709e9f61ba575582f0f7910bbec074b260a216f9769a941d1769c7474194

  • SSDEEP

    3072:bZl6Nc7yRzs1H75wkZUgsQ6NqTBun5o8RDDVWVbrzQCITk9Ej4X1qiQi5:9l6Nc7yRzs1H75wkZUgsQ6NqTBun5oYw

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\4c5012e09502fe970287af43437a911ea116959eb1cc345428c29c2460c66f94.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:1444
    • 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:892
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:696
    • 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:1956
    • 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:1808

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/696-222-0x0000000000000000-mapping.dmp
  • memory/892-219-0x0000000000000000-mapping.dmp
  • memory/1444-70-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1444-58-0x000000007251D000-0x0000000072528000-memory.dmp
    Filesize

    44KB

  • memory/1444-59-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-60-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-61-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-69-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-68-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-67-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-66-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-65-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-64-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-63-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-76-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-73-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-74-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-72-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-71-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-383-0x000000007251D000-0x0000000072528000-memory.dmp
    Filesize

    44KB

  • memory/1444-57-0x0000000075D71000-0x0000000075D73000-memory.dmp
    Filesize

    8KB

  • memory/1444-62-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-77-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-78-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-79-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-83-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-82-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-81-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-80-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-84-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-86-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-85-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-87-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-109-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-75-0x00000000003E8000-0x00000000003F8000-memory.dmp
    Filesize

    64KB

  • memory/1444-385-0x000000007251D000-0x0000000072528000-memory.dmp
    Filesize

    44KB

  • memory/1444-54-0x000000002F6C1000-0x000000002F6C4000-memory.dmp
    Filesize

    12KB

  • memory/1444-55-0x0000000071531000-0x0000000071533000-memory.dmp
    Filesize

    8KB

  • memory/1808-221-0x0000000000000000-mapping.dmp
  • memory/1956-220-0x0000000000000000-mapping.dmp