Analysis

  • max time kernel
    102s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    21-11-2022 12:12

General

  • Target

    971e9ed20bbc21ff363d83cba1d5f828938ba7d77d8eebe762bda1fc8dd691b0.xls

  • Size

    186KB

  • MD5

    412b833c5c53e1a3a25a529fb6c99a80

  • SHA1

    47d8dd1eb55f7ea4c523de40aeeb838bc2f656e7

  • SHA256

    971e9ed20bbc21ff363d83cba1d5f828938ba7d77d8eebe762bda1fc8dd691b0

  • SHA512

    bd1f68e4848200f3eb4484b17ead293105818ec5ac9df17ab5d404bae8d924de62b708d3f06334c2c4b50d8ad6c0deffa3c1c299783fd31bbb45678470aaff18

  • SSDEEP

    3072:VBxKvbvVEZ1htyA1Z+M9+Pg87RyrKjCWVbrzQ7ITkjwSwWE2JtXwhw:kBk1htPIyuYmE

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\971e9ed20bbc21ff363d83cba1d5f828938ba7d77d8eebe762bda1fc8dd691b0.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:1080
    • 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:1588
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1984
    • 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:1732
    • 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:240

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/240-221-0x0000000000000000-mapping.dmp

  • memory/1080-75-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-68-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-57-0x000000007287D000-0x0000000072888000-memory.dmp

    Filesize

    44KB

  • memory/1080-58-0x0000000076B51000-0x0000000076B53000-memory.dmp

    Filesize

    8KB

  • memory/1080-74-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-70-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-69-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-72-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-67-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-80-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-65-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-73-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-78-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-77-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-76-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-54-0x000000002FF91000-0x000000002FF94000-memory.dmp

    Filesize

    12KB

  • memory/1080-71-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1080-66-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-79-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-83-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-84-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-82-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-81-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-85-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-86-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-87-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-109-0x0000000000482000-0x0000000000486000-memory.dmp

    Filesize

    16KB

  • memory/1080-379-0x000000007287D000-0x0000000072888000-memory.dmp

    Filesize

    44KB

  • memory/1080-377-0x000000007287D000-0x0000000072888000-memory.dmp

    Filesize

    44KB

  • memory/1080-55-0x0000000071891000-0x0000000071893000-memory.dmp

    Filesize

    8KB

  • memory/1588-219-0x0000000000000000-mapping.dmp

  • memory/1732-220-0x0000000000000000-mapping.dmp

  • memory/1984-222-0x0000000000000000-mapping.dmp