Analysis

  • max time kernel
    100s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    31-10-2022 00:21

General

  • Target

    29f4126424cad6c6bddaf1ee5b55368f3a9361e31c1f17ffd971a74bf85b5b49.xls

  • Size

    95KB

  • MD5

    90ddc850353cca1cc2ebb54c87684706

  • SHA1

    0c10a5f0ca6ebd74bef7929535277237d0251622

  • SHA256

    29f4126424cad6c6bddaf1ee5b55368f3a9361e31c1f17ffd971a74bf85b5b49

  • SHA512

    98fca55c5f3adc7e50dc26665fd0b89692b4ec4a4eb36b7e0b5768e951da85000fa16f9f91c0bcb35719ebfe431c69db0f4947b2bc725d80ac01ca76db726930

  • SSDEEP

    1536:UzzzjNuEY4BvyWGwuBhSxNprfiOiWpvnd9mYqNpG3bLHYkfWVbrzQ7ITkQx23/uq:yEpG3QgWVbrzQ7ITk3WI3ani

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\29f4126424cad6c6bddaf1ee5b55368f3a9361e31c1f17ffd971a74bf85b5b49.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:1812
    • 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:676
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1784
    • 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:1632
    • 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:1528

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/676-219-0x0000000000000000-mapping.dmp

  • memory/1528-220-0x0000000000000000-mapping.dmp

  • memory/1632-221-0x0000000000000000-mapping.dmp

  • memory/1784-222-0x0000000000000000-mapping.dmp

  • memory/1812-74-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-223-0x000000007261D000-0x0000000072628000-memory.dmp

    Filesize

    44KB

  • memory/1812-61-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/1812-76-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-59-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/1812-63-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/1812-65-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-64-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/1812-66-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-67-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-68-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-69-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-70-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-71-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-72-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-73-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-54-0x000000002F681000-0x000000002F684000-memory.dmp

    Filesize

    12KB

  • memory/1812-75-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-60-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/1812-62-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/1812-78-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-80-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-77-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-83-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-84-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-82-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-81-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-85-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-86-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-87-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-109-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-58-0x0000000076411000-0x0000000076413000-memory.dmp

    Filesize

    8KB

  • memory/1812-57-0x000000007261D000-0x0000000072628000-memory.dmp

    Filesize

    44KB

  • memory/1812-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1812-55-0x0000000071631000-0x0000000071633000-memory.dmp

    Filesize

    8KB

  • memory/1812-79-0x00000000004B6000-0x00000000004BA000-memory.dmp

    Filesize

    16KB

  • memory/1812-385-0x000000007261D000-0x0000000072628000-memory.dmp

    Filesize

    44KB