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Analysis

  • max time kernel
    100s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    18/09/2022, 22:32

General

  • Target

    3f549515d70469e8d6f0ccda16800809cc6dba12bf7bb9a6d73a88d989f85bf2.xls

  • Size

    110KB

  • MD5

    9d10f3b18f8e0ec1cacc4827442589ab

  • SHA1

    0ea1008c8d1d22a0f2130384f94ae20c4d7defec

  • SHA256

    3f549515d70469e8d6f0ccda16800809cc6dba12bf7bb9a6d73a88d989f85bf2

  • SHA512

    bd9803417a8780420ecc61ca96485393f4a3e0ccb912bba333dc6a88ca43ce82042525dea225df7f99809741ce95298135a58aba69e254f70d1c0b270c6b943b

  • SSDEEP

    1536:GoooEnLzidCKMTmiRooxyVmQxg9Z95T6DzcRdhx4zUBWVbreKZ6YQ7ITkiD2PQOD:y+DgRdJWVbreqZQ7ITkDoM1z5kSJ

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\3f549515d70469e8d6f0ccda16800809cc6dba12bf7bb9a6d73a88d989f85bf2.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:1444
    • 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:1976
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:620
    • 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:1728
    • 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:1068

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1444-74-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-76-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-58-0x0000000072A6D000-0x0000000072A78000-memory.dmp

    Filesize

    44KB

  • memory/1444-59-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-60-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-61-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-86-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-85-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-84-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-83-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-82-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-81-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-80-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-79-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-78-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-77-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-73-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-75-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-57-0x0000000075ED1000-0x0000000075ED3000-memory.dmp

    Filesize

    8KB

  • memory/1444-54-0x000000002F831000-0x000000002F834000-memory.dmp

    Filesize

    12KB

  • memory/1444-69-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-71-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-70-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-72-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-68-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-67-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-66-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-65-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-64-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-63-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-62-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-87-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-109-0x00000000008A0000-0x00000000008A4000-memory.dmp

    Filesize

    16KB

  • memory/1444-385-0x0000000072A6D000-0x0000000072A78000-memory.dmp

    Filesize

    44KB

  • memory/1444-383-0x0000000072A6D000-0x0000000072A78000-memory.dmp

    Filesize

    44KB

  • memory/1444-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1444-55-0x0000000071A81000-0x0000000071A83000-memory.dmp

    Filesize

    8KB