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
    18/09/2022, 22:25

General

  • Target

    3f2c0b00d9380b4d4de3ac6ce7398aa7d807783652442d84be7c5fe6200ad063.xls

  • Size

    135KB

  • MD5

    a8d70882b3b3ff024c06336db0309bc4

  • SHA1

    cc15626fe6613e0550a97f9cb574a65a5180816a

  • SHA256

    3f2c0b00d9380b4d4de3ac6ce7398aa7d807783652442d84be7c5fe6200ad063

  • SHA512

    279492184ff711a43e47b6b267e8ea9b59c82cae9f72a38c5d18bc6d4d4f005388b7041de74bdd699a4bb4958e2fdffa0cd21ec2353234f9041799354a800650

  • SSDEEP

    1536:Gt44n0o4g0hmVnLziCdymRxoiKTM4O+Ky2fsqITzrWCBE+Mvi2ytWVbrzQ7ITkaJ:4aziCQ8WVbrzQ7ITkZYrjhJtXwy1H

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 3 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\3f2c0b00d9380b4d4de3ac6ce7398aa7d807783652442d84be7c5fe6200ad063.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:1388
    • 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:320
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:632
    • 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:768
    • 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:580

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1388-74-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-60-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-59-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-61-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-65-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-64-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-63-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-62-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-66-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-67-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-69-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-68-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-70-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-71-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-73-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-72-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-75-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-54-0x000000002F981000-0x000000002F984000-memory.dmp

          Filesize

          12KB

        • memory/1388-86-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-77-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-78-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-79-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-80-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-81-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-82-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-83-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-85-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-84-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-76-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-87-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-109-0x00000000005A2000-0x00000000005A6000-memory.dmp

          Filesize

          16KB

        • memory/1388-58-0x00000000753C1000-0x00000000753C3000-memory.dmp

          Filesize

          8KB

        • memory/1388-57-0x00000000721DD000-0x00000000721E8000-memory.dmp

          Filesize

          44KB

        • memory/1388-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/1388-55-0x00000000711F1000-0x00000000711F3000-memory.dmp

          Filesize

          8KB

        • memory/1388-383-0x00000000721DD000-0x00000000721E8000-memory.dmp

          Filesize

          44KB