Analysis

  • max time kernel
    100s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 11:41

General

  • Target

    7e155c707d4c6077c636f47fcd07bf94c7b0ce299231ccb1c41bb9423757ddd7.xls

  • Size

    170KB

  • MD5

    66731614fb7090ae1ef5ea1202ce1fdc

  • SHA1

    b73e1da67ca2fb73b21521df3a77c1c0ca6dbbcc

  • SHA256

    7e155c707d4c6077c636f47fcd07bf94c7b0ce299231ccb1c41bb9423757ddd7

  • SHA512

    e898655d3006d49fb0ef79f049c4e160f68ac4f016d9f644411fbc9a9274cd27f10d9b46457c0acf9c07f9cbdffaa89bc0edee2a5d13fdebc3bd4173424eb134

  • SSDEEP

    3072:N8fqWPFrgFMtKqQmxWVbrzQ7ITkPpFGsv:y7r95

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 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\7e155c707d4c6077c636f47fcd07bf94c7b0ce299231ccb1c41bb9423757ddd7.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:900
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1748
      • 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:1860
        • C:\Windows\SysWOW64\attrib.exe
          attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
          3⤵
          • Views/modifies file attributes
          PID:1928
      • 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:432
      • 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:1056

    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/900-270-0x0000000000110000-0x0000000000210000-memory.dmp
      Filesize

      1024KB

    • memory/900-64-0x0000000000110000-0x0000000000210000-memory.dmp
      Filesize

      1024KB

    • memory/900-387-0x000000007234D000-0x0000000072358000-memory.dmp
      Filesize

      44KB

    • memory/900-58-0x00000000762D1000-0x00000000762D3000-memory.dmp
      Filesize

      8KB

    • memory/900-55-0x0000000071361000-0x0000000071363000-memory.dmp
      Filesize

      8KB

    • memory/900-386-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/900-61-0x0000000000110000-0x0000000000210000-memory.dmp
      Filesize

      1024KB

    • memory/900-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/900-63-0x0000000000110000-0x0000000000210000-memory.dmp
      Filesize

      1024KB

    • memory/900-383-0x0000000000110000-0x0000000000210000-memory.dmp
      Filesize

      1024KB

    • memory/900-65-0x0000000000110000-0x0000000000210000-memory.dmp
      Filesize

      1024KB

    • memory/900-66-0x0000000000110000-0x0000000000210000-memory.dmp
      Filesize

      1024KB

    • memory/900-57-0x000000007234D000-0x0000000072358000-memory.dmp
      Filesize

      44KB

    • memory/900-385-0x000000007234D000-0x0000000072358000-memory.dmp
      Filesize

      44KB

    • memory/900-62-0x0000000000110000-0x0000000000210000-memory.dmp
      Filesize

      1024KB

    • memory/900-384-0x0000000000110000-0x0000000000210000-memory.dmp
      Filesize

      1024KB

    • memory/900-269-0x0000000000110000-0x0000000000210000-memory.dmp
      Filesize

      1024KB

    • memory/900-54-0x000000002FFE1000-0x000000002FFE4000-memory.dmp
      Filesize

      12KB

    • memory/900-271-0x0000000000110000-0x0000000000210000-memory.dmp
      Filesize

      1024KB

    • memory/900-382-0x0000000000110000-0x0000000000210000-memory.dmp
      Filesize

      1024KB

    • memory/1056-223-0x0000000000000000-mapping.dmp
    • memory/1748-59-0x0000000000000000-mapping.dmp
    • memory/1748-60-0x000007FEFBB41000-0x000007FEFBB43000-memory.dmp
      Filesize

      8KB

    • memory/1860-221-0x0000000000000000-mapping.dmp
    • memory/1928-224-0x0000000000000000-mapping.dmp