Analysis

  • max time kernel
    106s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2022 01:23

General

  • Target

    748a1238bb08fa09e20b0b4e7047b1910aaa7a691085a3df3301cb92b4836199.xls

  • Size

    108KB

  • MD5

    eeed12dc63ada2acb35b0c04b8c5a293

  • SHA1

    7477fec5fe0601c30fcdc99c2818f6301f2a6f30

  • SHA256

    748a1238bb08fa09e20b0b4e7047b1910aaa7a691085a3df3301cb92b4836199

  • SHA512

    ace3a8d615c3e9f2b1ed635fa33edaf924fdfe8b243f403b3faa7c0a47cd2b7d2a2879ce5cc69ff85e387d1f304dc3855f59e58c8b360f8dec68d1cea379a0fa

  • SSDEEP

    1536:1dddTwSuGX3oHTEkdXPmJA5xRZ1zlY2WZ95tavWGysZcglnUWVbrzQ7IC8cpDuk9:K8GyScRWVbrzQ7ITcDukZljhJtXwS1

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\748a1238bb08fa09e20b0b4e7047b1910aaa7a691085a3df3301cb92b4836199.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:1492
    • 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:1368
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1032
    • 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:1648
    • 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:524

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/524-215-0x0000000000000000-mapping.dmp
  • memory/1032-216-0x0000000000000000-mapping.dmp
  • memory/1368-213-0x0000000000000000-mapping.dmp
  • memory/1492-66-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-55-0x0000000071CA1000-0x0000000071CA3000-memory.dmp
    Filesize

    8KB

  • memory/1492-59-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-60-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-62-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-61-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-75-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-73-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-71-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-70-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-69-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-68-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-67-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-54-0x000000002FB31000-0x000000002FB34000-memory.dmp
    Filesize

    12KB

  • memory/1492-373-0x0000000072C8D000-0x0000000072C98000-memory.dmp
    Filesize

    44KB

  • memory/1492-58-0x0000000076BA1000-0x0000000076BA3000-memory.dmp
    Filesize

    8KB

  • memory/1492-72-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-64-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-63-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-76-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-78-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-77-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-80-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-79-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-81-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-103-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-57-0x0000000072C8D000-0x0000000072C98000-memory.dmp
    Filesize

    44KB

  • memory/1492-74-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1492-65-0x0000000000413000-0x0000000000417000-memory.dmp
    Filesize

    16KB

  • memory/1492-371-0x0000000072C8D000-0x0000000072C98000-memory.dmp
    Filesize

    44KB

  • memory/1648-214-0x0000000000000000-mapping.dmp