Analysis

  • max time kernel
    102s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 13:20

General

  • Target

    fee56268d3560caa41a6955ddc97b29578794be22e334013299f6aee4bf6dd44.xls

  • Size

    142KB

  • MD5

    a02df9c9b2c39cbc116b75f4298360d1

  • SHA1

    d1a23543c9e2d6c7bcc78dd059e8ec2209a139ed

  • SHA256

    fee56268d3560caa41a6955ddc97b29578794be22e334013299f6aee4bf6dd44

  • SHA512

    875990d0d45623c1e7b46b23848fd0ac2ff12a6d03c7a488d3717fcd40198cca59cbf295203230794232217c16df463b4d1556f3fd5af94e09ce08c47a13601e

  • SSDEEP

    3072:Rbl6Nc7yRzs1H75wkZUgsQ6NqTBun5ooKaL3i2jcc0lbxOrU5vnD:Vl6Nc7yRzs1H75wkZUgsQ6NqTBun5o14

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\fee56268d3560caa41a6955ddc97b29578794be22e334013299f6aee4bf6dd44.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:1800
    • 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:2024
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1368
    • 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:524
    • 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:1832

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/524-220-0x0000000000000000-mapping.dmp
  • memory/1368-222-0x0000000000000000-mapping.dmp
  • memory/1800-74-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-79-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-58-0x00000000758C1000-0x00000000758C3000-memory.dmp
    Filesize

    8KB

  • memory/1800-59-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-60-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-61-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-62-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-63-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-64-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-65-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-67-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-66-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-68-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-85-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-70-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-72-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-75-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-73-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-223-0x000000007269D000-0x00000000726A8000-memory.dmp
    Filesize

    44KB

  • memory/1800-385-0x000000007269D000-0x00000000726A8000-memory.dmp
    Filesize

    44KB

  • memory/1800-69-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-86-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-87-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-84-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-83-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-82-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-81-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-80-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-57-0x000000007269D000-0x00000000726A8000-memory.dmp
    Filesize

    44KB

  • memory/1800-78-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-77-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-76-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-109-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-71-0x0000000000150000-0x0000000000250000-memory.dmp
    Filesize

    1024KB

  • memory/1800-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1800-54-0x000000002FD51000-0x000000002FD54000-memory.dmp
    Filesize

    12KB

  • memory/1800-55-0x00000000716B1000-0x00000000716B3000-memory.dmp
    Filesize

    8KB

  • memory/1832-221-0x0000000000000000-mapping.dmp
  • memory/2024-219-0x0000000000000000-mapping.dmp