Analysis

  • max time kernel
    120s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 12:06

General

  • Target

    1088d3716529f0e77a79f51a783d0bf9ea572edcd20e6dc490ceb7b3667711c1.xls

  • Size

    129KB

  • MD5

    a8e4e0fdea4236135d7b7dcb3bf784d8

  • SHA1

    d350cd64b6621eca59b6e59dfb0592704552f3c9

  • SHA256

    1088d3716529f0e77a79f51a783d0bf9ea572edcd20e6dc490ceb7b3667711c1

  • SHA512

    27deb672f34567e6421b507a592167b9a05be81fbe74e3745ffb7ed04a2f64ba1194898583d1486da0839d84cc21ac2582307751b024fdd296d796850b00394d

  • SSDEEP

    1536:zJJJBlzUy4ME44yoFFrXWVbrzQ7ITk34UrFA237KOeXcJtXw4PdosnkCe:oy6WVbrzQ7ITkzHG/MJtXwedhhe

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\1088d3716529f0e77a79f51a783d0bf9ea572edcd20e6dc490ceb7b3667711c1.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:1108
    • 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:1012
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1676
    • 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:1708
    • 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/1012-219-0x0000000000000000-mapping.dmp
  • memory/1108-74-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-55-0x0000000071811000-0x0000000071813000-memory.dmp
    Filesize

    8KB

  • memory/1108-57-0x0000000075B41000-0x0000000075B43000-memory.dmp
    Filesize

    8KB

  • memory/1108-58-0x00000000727FD000-0x0000000072808000-memory.dmp
    Filesize

    44KB

  • memory/1108-60-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-59-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-72-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-62-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-63-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-64-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-68-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-67-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-66-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-69-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-65-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-70-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-71-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-75-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-61-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1108-73-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-76-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-78-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-77-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-80-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-79-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-81-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-82-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-83-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-85-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-84-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-86-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-87-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-109-0x0000000000446000-0x0000000000449000-memory.dmp
    Filesize

    12KB

  • memory/1108-54-0x000000002FDD1000-0x000000002FDD4000-memory.dmp
    Filesize

    12KB

  • memory/1108-410-0x00000000727FD000-0x0000000072808000-memory.dmp
    Filesize

    44KB

  • memory/1108-408-0x00000000727FD000-0x0000000072808000-memory.dmp
    Filesize

    44KB

  • memory/1516-221-0x0000000000000000-mapping.dmp
  • memory/1676-222-0x0000000000000000-mapping.dmp
  • memory/1708-220-0x0000000000000000-mapping.dmp