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Analysis

  • max time kernel
    108s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2022, 12:52

General

  • Target

    9e889df347320d774497c8b7e441001f8f6493916e74e7c8a542db79b0ccfe1a.xls

  • Size

    166KB

  • MD5

    56a65edce9f23108700cc5e1fbe90710

  • SHA1

    d145f67a30f79f50dcd721e9d902ed24aa562c26

  • SHA256

    9e889df347320d774497c8b7e441001f8f6493916e74e7c8a542db79b0ccfe1a

  • SHA512

    32683444f2e3be08dfee54d75a247906b266153c55da879f4b23764c0f2465a6c45a0588ede4b6878130916d9eff44bf3df1bc25a134d4465599d113141d285b

  • SSDEEP

    3072:UKnsnPE+X3i7dWWrRIs7WVbrzQ7ITkT9n8ugJtXwWrv:U73iRVVXW

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\9e889df347320d774497c8b7e441001f8f6493916e74e7c8a542db79b0ccfe1a.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:1392
    • 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:580
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1500
    • 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:1512
    • 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:1524

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1392-109-0x0000000005660000-0x0000000005760000-memory.dmp

    Filesize

    1024KB

  • memory/1392-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1392-57-0x0000000071E7D000-0x0000000071E88000-memory.dmp

    Filesize

    44KB

  • memory/1392-58-0x0000000075601000-0x0000000075603000-memory.dmp

    Filesize

    8KB

  • memory/1392-87-0x0000000005660000-0x0000000005760000-memory.dmp

    Filesize

    1024KB

  • memory/1392-54-0x000000002F5E1000-0x000000002F5E4000-memory.dmp

    Filesize

    12KB

  • memory/1392-131-0x0000000005660000-0x0000000005760000-memory.dmp

    Filesize

    1024KB

  • memory/1392-55-0x0000000070E91000-0x0000000070E93000-memory.dmp

    Filesize

    8KB

  • memory/1392-223-0x0000000071E7D000-0x0000000071E88000-memory.dmp

    Filesize

    44KB

  • memory/1392-379-0x0000000071E7D000-0x0000000071E88000-memory.dmp

    Filesize

    44KB