Analysis

  • max time kernel
    106s
  • max time network
    43s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2022 22:00

General

  • Target

    8ba088aa669da0eeb2aad5d0cb9cad173b290a6937c495c2ba5192db91ed87d8.xls

  • Size

    85KB

  • MD5

    64c1d30a68ecf97fcac48bc4cee3320a

  • SHA1

    3be07460a46e5fda70e1dd1892438cb98620479d

  • SHA256

    8ba088aa669da0eeb2aad5d0cb9cad173b290a6937c495c2ba5192db91ed87d8

  • SHA512

    26a96ce360198173137ac79afe8c34da2cf850d30b1c61a3462bcb12c67dc7217eff1004969a2a0681612d8a2c9a5350455750f3c40163b820009d7693e9bf37

  • SSDEEP

    1536:alJsK0WVbrzQ7ITkU8N67OA23DIhY7nJdJoOd7cJiXwgZ0:YstWVbrzQ7ITkn02AJiXwg0

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\8ba088aa669da0eeb2aad5d0cb9cad173b290a6937c495c2ba5192db91ed87d8.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:1476
    • 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:1748
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:524
    • 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:1776
    • 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:1788

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/524-222-0x0000000000000000-mapping.dmp
  • memory/1476-54-0x000000002FBF1000-0x000000002FBF4000-memory.dmp
    Filesize

    12KB

  • memory/1476-55-0x0000000071B01000-0x0000000071B03000-memory.dmp
    Filesize

    8KB

  • memory/1476-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1476-57-0x0000000072AED000-0x0000000072AF8000-memory.dmp
    Filesize

    44KB

  • memory/1476-58-0x0000000075E51000-0x0000000075E53000-memory.dmp
    Filesize

    8KB

  • memory/1476-383-0x0000000072AED000-0x0000000072AF8000-memory.dmp
    Filesize

    44KB

  • memory/1476-384-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1476-385-0x0000000072AED000-0x0000000072AF8000-memory.dmp
    Filesize

    44KB

  • memory/1748-219-0x0000000000000000-mapping.dmp
  • memory/1776-220-0x0000000000000000-mapping.dmp
  • memory/1788-221-0x0000000000000000-mapping.dmp