Analysis

  • max time kernel
    106s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    21-11-2022 12:12

General

  • Target

    9b5d412f58c74d052492defd3e1e84b1c9d239c82a7d49fdc6373c8402a6b567.xls

  • Size

    191KB

  • MD5

    2adbd8d924a420631b9dda7e5218e750

  • SHA1

    135d6d452634523961ef47d69e562412576d24c7

  • SHA256

    9b5d412f58c74d052492defd3e1e84b1c9d239c82a7d49fdc6373c8402a6b567

  • SHA512

    b52d6cbc4493e5d4d9fd3b800727cf38555d4f9db36390a9461ad302d3970c74b8448deea4e2f4dd6cfe6cc9d7c7638a5e935b24074c13595de8987ea5f738a0

  • SSDEEP

    3072:S9stAbJJJOjf2eVeWoaPCkrPaQ49w+AKuWVbrzQ7ITk9pISaz5kuU6P:+s4J0PCkWnWV

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 5 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\9b5d412f58c74d052492defd3e1e84b1c9d239c82a7d49fdc6373c8402a6b567.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:1184
    • 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:1488
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:2036
    • 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:1200
    • 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:648

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/648-221-0x0000000000000000-mapping.dmp

  • memory/1184-54-0x000000002F061000-0x000000002F064000-memory.dmp

    Filesize

    12KB

  • memory/1184-55-0x0000000070FC1000-0x0000000070FC3000-memory.dmp

    Filesize

    8KB

  • memory/1184-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1184-57-0x0000000071FAD000-0x0000000071FB8000-memory.dmp

    Filesize

    44KB

  • memory/1184-58-0x0000000074BB1000-0x0000000074BB3000-memory.dmp

    Filesize

    8KB

  • memory/1184-383-0x0000000071FAD000-0x0000000071FB8000-memory.dmp

    Filesize

    44KB

  • memory/1184-384-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1184-385-0x0000000071FAD000-0x0000000071FB8000-memory.dmp

    Filesize

    44KB

  • memory/1200-220-0x0000000000000000-mapping.dmp

  • memory/1488-219-0x0000000000000000-mapping.dmp

  • memory/2036-222-0x0000000000000000-mapping.dmp