Analysis

  • max time kernel
    119s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 14:02

General

  • Target

    0efbdf69acc7efefa80b0078c847814749873d4739efb7020001cb4521985e09.xls

  • Size

    105KB

  • MD5

    1654c5d2d91f05db425702a4a0212e0e

  • SHA1

    d72769ee73be6cf375bfcdff1b325e39ce1be7f8

  • SHA256

    0efbdf69acc7efefa80b0078c847814749873d4739efb7020001cb4521985e09

  • SHA512

    7d33f8a116c3956b539e06b23d86b58a782375e0791cbe8b5ee6103b3fd12cf9af0d79cbc55a11b6531b8ef2af38dfc75ee02e0aca541d7c70da1e43c7b7a372

  • SSDEEP

    3072:HQQn6v7yZmspH7+7alMisPI4ukoRWGNwcWVbrziKm7ITkPXyww33XjUJtXw8cMgw:wQn6v7yZmspH7+7alMisPI4ukoRWGNwy

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\0efbdf69acc7efefa80b0078c847814749873d4739efb7020001cb4521985e09.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:1212
    • 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:1520
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:608
    • 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:308
    • 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:672

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/308-220-0x0000000000000000-mapping.dmp
  • memory/608-222-0x0000000000000000-mapping.dmp
  • memory/672-221-0x0000000000000000-mapping.dmp
  • memory/1212-74-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-267-0x0000000072B5D000-0x0000000072B68000-memory.dmp
    Filesize

    44KB

  • memory/1212-60-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-61-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-59-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-67-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-69-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-68-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-75-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-65-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-64-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-63-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-62-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-70-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-71-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-73-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-72-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-54-0x000000002FCA1000-0x000000002FCA4000-memory.dmp
    Filesize

    12KB

  • memory/1212-66-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-58-0x0000000075EC1000-0x0000000075EC3000-memory.dmp
    Filesize

    8KB

  • memory/1212-82-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-78-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-79-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-80-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-81-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-76-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-84-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-83-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-86-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-85-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-87-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-109-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1212-385-0x0000000072B5D000-0x0000000072B68000-memory.dmp
    Filesize

    44KB

  • memory/1212-57-0x0000000072B5D000-0x0000000072B68000-memory.dmp
    Filesize

    44KB

  • memory/1212-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1212-55-0x0000000071B71000-0x0000000071B73000-memory.dmp
    Filesize

    8KB

  • memory/1212-77-0x00000000006A2000-0x00000000006A6000-memory.dmp
    Filesize

    16KB

  • memory/1520-219-0x0000000000000000-mapping.dmp