Analysis

  • max time kernel
    121s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-02-2024 15:02

General

  • Target

    ac2b251fb7aa144307c7718160380cb2.xls

  • Size

    178KB

  • MD5

    ac2b251fb7aa144307c7718160380cb2

  • SHA1

    12793377feecb4812ed60ec22eefbce6d2db3bd4

  • SHA256

    36f6bebf6d72d93823c099be1f465542dc18b3e6ce67a335baf9b6234993c93e

  • SHA512

    9b4710e681e27f75e571d8f2d3ff2c7a1ffd1e055fa444fabb6acd33f0576479ca317823a3af077bcf9eada32982a64d58fd4706fb4f777cae8c9a743ce01d12

  • SSDEEP

    3072:BOl6Nc7yRzs1H75wkZUgsCgI4ukoRWGN/XD4RetWVbrzQ704Tk9O8EJtXwIv4b0:cl6Nc7yRzs1H75wkZUgsCgI4ukoRWGNw

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\ac2b251fb7aa144307c7718160380cb2.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:2792
    • 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:2480
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1372
    • 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:1384
    • 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:2396

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2792-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2792-1-0x00000000727CD000-0x00000000727D8000-memory.dmp

    Filesize

    44KB

  • memory/2792-2-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-3-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-4-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-6-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-5-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-7-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-8-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-9-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-10-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-11-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-12-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-13-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-16-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-15-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-14-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-17-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-19-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-18-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-20-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-22-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-21-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-24-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-23-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-25-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-27-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-28-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-26-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-30-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-29-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-31-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-32-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-54-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-77-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-100-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-124-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-155-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-170-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-193-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-218-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-216-0x00000000727CD000-0x00000000727D8000-memory.dmp

    Filesize

    44KB

  • memory/2792-221-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-243-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-268-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-291-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-313-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-341-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-342-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-343-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2792-347-0x00000000727CD000-0x00000000727D8000-memory.dmp

    Filesize

    44KB