Analysis

  • max time kernel
    107s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 20:13

General

  • Target

    9e067acb4161f18c63a8ecd3ed0bc7b37e741fed9a5218ba56d79282ca1457c8.xls

  • Size

    111KB

  • MD5

    8e9283c09fdb17fe9b8a6bf47023032f

  • SHA1

    8f3a2445ada7dec7246e94535a56c728cc308336

  • SHA256

    9e067acb4161f18c63a8ecd3ed0bc7b37e741fed9a5218ba56d79282ca1457c8

  • SHA512

    53e9ae5b9ef86bb34904bd7f609ddeceea2d52e7e483c6f80def5864b4edd912bf47686cd899191fc99429f823d74e545491beb5dce5a2d09dd1719b64fd9408

  • SSDEEP

    1536:5XXXzS0PC3Ob4Qmf8fWVbrzNy7ITkR62S0jSnUC/WwF1Q8M2M/MFeCFNTG:PlmUWVbrzNy7ITk93Gc5k1NTG

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\9e067acb4161f18c63a8ecd3ed0bc7b37e741fed9a5218ba56d79282ca1457c8.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:2044
    • 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:1752
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1820
    • 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:880
    • 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:772

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/772-222-0x0000000000000000-mapping.dmp
  • memory/880-221-0x0000000000000000-mapping.dmp
  • memory/1752-220-0x0000000000000000-mapping.dmp
  • memory/1820-223-0x0000000000000000-mapping.dmp
  • memory/2044-82-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-55-0x0000000071A41000-0x0000000071A43000-memory.dmp
    Filesize

    8KB

  • memory/2044-60-0x0000000000385000-0x000000000038B000-memory.dmp
    Filesize

    24KB

  • memory/2044-80-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-62-0x0000000000385000-0x000000000038B000-memory.dmp
    Filesize

    24KB

  • memory/2044-63-0x0000000000385000-0x000000000038B000-memory.dmp
    Filesize

    24KB

  • memory/2044-64-0x0000000000385000-0x000000000038B000-memory.dmp
    Filesize

    24KB

  • memory/2044-66-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-65-0x0000000000385000-0x000000000038B000-memory.dmp
    Filesize

    24KB

  • memory/2044-70-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-69-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-85-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-83-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-86-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-84-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-87-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-54-0x000000002F881000-0x000000002F884000-memory.dmp
    Filesize

    12KB

  • memory/2044-81-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-61-0x0000000000385000-0x000000000038B000-memory.dmp
    Filesize

    24KB

  • memory/2044-59-0x0000000072A2D000-0x0000000072A38000-memory.dmp
    Filesize

    44KB

  • memory/2044-77-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-78-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-76-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-75-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-74-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-73-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-72-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-71-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-68-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-67-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-88-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-110-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-58-0x0000000075F81000-0x0000000075F83000-memory.dmp
    Filesize

    8KB

  • memory/2044-57-0x0000000072A2D000-0x0000000072A38000-memory.dmp
    Filesize

    44KB

  • memory/2044-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/2044-79-0x000000000038B000-0x000000000038F000-memory.dmp
    Filesize

    16KB

  • memory/2044-385-0x0000000072A2D000-0x0000000072A38000-memory.dmp
    Filesize

    44KB