Analysis

  • max time kernel
    102s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 14:54

General

  • Target

    653d108e2153f84ad5252f50b6c3632565442d0d8c2dc1b380bfc0586c7d037a.xls

  • Size

    97KB

  • MD5

    5dfd51221443d5a2b0aaf4f044fe1b02

  • SHA1

    1cf7de8284b16cf32c72e0ac4081410a21543d00

  • SHA256

    653d108e2153f84ad5252f50b6c3632565442d0d8c2dc1b380bfc0586c7d037a

  • SHA512

    b99f9bbefd9168b79273daffed0eafb92bd9c947e6ec21036cc4f5f91256246a8dc3cb42fdd909a6b1506f680b3f57935a404c59386f29a1126df74b4d91b8ae

  • SSDEEP

    1536:oGGGiRCdqgWVbrzQ74MxDTkR62ldM88SkJtXwRYM2M/MFv3R:dWVbrzQ7lTk9sjpJtXwZ5kJ3R

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\653d108e2153f84ad5252f50b6c3632565442d0d8c2dc1b380bfc0586c7d037a.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:2036
    • 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:1556
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1560
    • 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:316
    • 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:1384

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/316-220-0x0000000000000000-mapping.dmp
  • memory/1384-221-0x0000000000000000-mapping.dmp
  • memory/1556-219-0x0000000000000000-mapping.dmp
  • memory/1560-222-0x0000000000000000-mapping.dmp
  • memory/2036-76-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-61-0x0000000000735000-0x000000000073B000-memory.dmp
    Filesize

    24KB

  • memory/2036-54-0x000000002F0D1000-0x000000002F0D4000-memory.dmp
    Filesize

    12KB

  • memory/2036-77-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-63-0x0000000000735000-0x000000000073B000-memory.dmp
    Filesize

    24KB

  • memory/2036-64-0x0000000000735000-0x000000000073B000-memory.dmp
    Filesize

    24KB

  • memory/2036-62-0x0000000000735000-0x000000000073B000-memory.dmp
    Filesize

    24KB

  • memory/2036-66-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-65-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-67-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-69-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-68-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-71-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-70-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-73-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-72-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-60-0x0000000000735000-0x000000000073B000-memory.dmp
    Filesize

    24KB

  • memory/2036-75-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-59-0x0000000000735000-0x000000000073B000-memory.dmp
    Filesize

    24KB

  • memory/2036-74-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-80-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-81-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-79-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-78-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-84-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-85-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-83-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-82-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-86-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-87-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-109-0x000000000073B000-0x000000000073F000-memory.dmp
    Filesize

    16KB

  • memory/2036-58-0x00000000760B1000-0x00000000760B3000-memory.dmp
    Filesize

    8KB

  • memory/2036-57-0x0000000072B6D000-0x0000000072B78000-memory.dmp
    Filesize

    44KB

  • memory/2036-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/2036-55-0x0000000071B81000-0x0000000071B83000-memory.dmp
    Filesize

    8KB

  • memory/2036-384-0x0000000072B6D000-0x0000000072B78000-memory.dmp
    Filesize

    44KB