Analysis

  • max time kernel
    106s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:25

General

  • Target

    566b22ef9e58ca6066a8d54895f2aad05caf3522f1d31320360118313a45b3d6.xls

  • Size

    102KB

  • MD5

    93783f383be84ba8c73478fc0cc425c5

  • SHA1

    0a14ba971d5d3d2db445f7c29b1660b8f70bcd1f

  • SHA256

    566b22ef9e58ca6066a8d54895f2aad05caf3522f1d31320360118313a45b3d6

  • SHA512

    ddf14ed1b7d1b88feb8ad82e939e03897ca787a56cc4fc11a77763eaa7e48fc58e09b6f0aee570f4985782c442244ad508b632977d5ebef6f9ed0d09cf20c7d1

  • SSDEEP

    1536:XWWWSkv4ct4N54WVbrzlS7ITkR62lGM88wcJtXwRHM2M/MCUdL:6WVbrz47ITk9tjDJtXwC5kPdL

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\566b22ef9e58ca6066a8d54895f2aad05caf3522f1d31320360118313a45b3d6.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:1184
    • 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:2028
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1696
    • 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:648
    • 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:280

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Defense Evasion

Modify Registry

1
T1112

Hidden Files and Directories

1
T1158

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/280-221-0x0000000000000000-mapping.dmp
  • memory/648-220-0x0000000000000000-mapping.dmp
  • memory/1184-74-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-83-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-58-0x0000000074BB1000-0x0000000074BB3000-memory.dmp
    Filesize

    8KB

  • memory/1184-61-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-60-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-59-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-62-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-63-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-65-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-64-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-66-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-72-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-71-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-77-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-69-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-68-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-67-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-73-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-267-0x0000000071FAD000-0x0000000071FB8000-memory.dmp
    Filesize

    44KB

  • memory/1184-385-0x0000000071FAD000-0x0000000071FB8000-memory.dmp
    Filesize

    44KB

  • memory/1184-70-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-76-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-78-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-81-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-82-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-80-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-79-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-84-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-57-0x0000000071FAD000-0x0000000071FB8000-memory.dmp
    Filesize

    44KB

  • memory/1184-86-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-85-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-87-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-109-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-75-0x00000000005AB000-0x00000000005AE000-memory.dmp
    Filesize

    12KB

  • memory/1184-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1184-55-0x0000000070FC1000-0x0000000070FC3000-memory.dmp
    Filesize

    8KB

  • memory/1184-54-0x000000002F4D1000-0x000000002F4D4000-memory.dmp
    Filesize

    12KB

  • memory/1696-222-0x0000000000000000-mapping.dmp
  • memory/2028-219-0x0000000000000000-mapping.dmp