Analysis

  • max time kernel
    101s
  • max time network
    45s
  • 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

    c965880f0e964f46df8c423a22d1ccb32c72d214d6421a0798d9938887f2b5d7.xls

  • Size

    91KB

  • MD5

    2032497ae5106a50beb3e5b39dab2f70

  • SHA1

    7b3ee17bc16eb17918b83c2516f200121564b3ae

  • SHA256

    c965880f0e964f46df8c423a22d1ccb32c72d214d6421a0798d9938887f2b5d7

  • SHA512

    4fdb9d1d70481bd56157d200f4e9acbc53c969218745ed7ca89ca23b381bae9fc3501a813dbb6666ab5ced4b85d9234c72b6ca997f96de839a7699f8556e1c07

  • SSDEEP

    1536:XCCCmeO2o6s2jcc0lbxOe62AZiM88ScJTXwWQgtY:V2jcc0lbxOOujhJTXw8

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\c965880f0e964f46df8c423a22d1ccb32c72d214d6421a0798d9938887f2b5d7.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:1948
    • 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:1212
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1812
    • 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:968
    • 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:1972

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/968-214-0x0000000000000000-mapping.dmp

  • memory/1212-213-0x0000000000000000-mapping.dmp

  • memory/1812-216-0x0000000000000000-mapping.dmp

  • memory/1948-69-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-55-0x0000000070EC1000-0x0000000070EC3000-memory.dmp

    Filesize

    8KB

  • memory/1948-80-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-79-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-78-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-77-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-66-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-75-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-74-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-73-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-72-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-71-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-70-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-54-0x000000002F741000-0x000000002F744000-memory.dmp

    Filesize

    12KB

  • memory/1948-373-0x0000000071EAD000-0x0000000071EB8000-memory.dmp

    Filesize

    44KB

  • memory/1948-58-0x0000000071EAD000-0x0000000071EB8000-memory.dmp

    Filesize

    44KB

  • memory/1948-76-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-65-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-64-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-63-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-62-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-61-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-60-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-59-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-81-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-103-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-57-0x0000000075F51000-0x0000000075F53000-memory.dmp

    Filesize

    8KB

  • memory/1948-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1948-68-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-67-0x00000000003B9000-0x00000000003BD000-memory.dmp

    Filesize

    16KB

  • memory/1948-371-0x0000000071EAD000-0x0000000071EB8000-memory.dmp

    Filesize

    44KB

  • memory/1972-215-0x0000000000000000-mapping.dmp