Analysis

  • max time kernel
    108s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2022 12:43

General

  • Target

    61a45cee3a5eb66f332c3d0a95ada4899777a2259bf23b159a7671af0387b2c5.xls

  • Size

    113KB

  • MD5

    99eff638547a80794a5ab5434b35c574

  • SHA1

    7d3f7e9713b0c3a9cb6c940d9c83a38905555435

  • SHA256

    61a45cee3a5eb66f332c3d0a95ada4899777a2259bf23b159a7671af0387b2c5

  • SHA512

    21e6e08f26349f2e062f8e47cb6319792d9d7f0706faccfc4ebc16fdf36783d939ee0e8a37e0441fd50323f5f9b841f19c52f0cd2ce9bbff78ade375f3a0a18d

  • SSDEEP

    1536:cOOKgOTrSD65UgD59FsMr8gf/OsUlCk15sqI7Pfq/XPWVbrz2rc7ITkiD2lqk+ID:a1cfwWVbrz2rc7ITkD9+IPaZ5kmxab

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 4 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 20 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\61a45cee3a5eb66f332c3d0a95ada4899777a2259bf23b159a7671af0387b2c5.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:1660
    • 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:1416
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:432
    • 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:1724
    • 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:1892
    • C:\Windows\SysWOW64\wscript.exe
      "C:\Windows\System32\wscript.exe" E:\KK\61a45cee3a5eb66f332c3d0a95ada4899777a2259bf23b159a7671af0387b2c5_Search.vbs
      2⤵
      • Process spawned unexpected child process
      PID:1732

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/432-222-0x0000000000000000-mapping.dmp
  • memory/1416-219-0x0000000000000000-mapping.dmp
  • memory/1660-69-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-83-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-58-0x0000000075F51000-0x0000000075F53000-memory.dmp
    Filesize

    8KB

  • memory/1660-60-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-59-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-61-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-54-0x000000002F2D1000-0x000000002F2D4000-memory.dmp
    Filesize

    12KB

  • memory/1660-64-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-63-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-65-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-66-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-67-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-68-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-73-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-74-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-72-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-71-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-76-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-62-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-430-0x0000000071EAD000-0x0000000071EB8000-memory.dmp
    Filesize

    44KB

  • memory/1660-70-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-77-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-79-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-78-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-80-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-82-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-81-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-84-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-57-0x0000000071EAD000-0x0000000071EB8000-memory.dmp
    Filesize

    44KB

  • memory/1660-86-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-85-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-87-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-109-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1660-75-0x00000000004F1000-0x00000000004F5000-memory.dmp
    Filesize

    16KB

  • memory/1660-223-0x0000000071EAD000-0x0000000071EB8000-memory.dmp
    Filesize

    44KB

  • memory/1660-55-0x0000000070EC1000-0x0000000070EC3000-memory.dmp
    Filesize

    8KB

  • memory/1724-220-0x0000000000000000-mapping.dmp
  • memory/1732-312-0x0000000000000000-mapping.dmp
  • memory/1892-221-0x0000000000000000-mapping.dmp