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Analysis

  • max time kernel
    105s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07/11/2022, 04:14

General

  • Target

    52e8e2163c3918de5cb183abe3be134e11d83436d239e78e571fa9c198973fec.exe

  • Size

    307KB

  • MD5

    0eaf291e0565a86af393bc576ebf0140

  • SHA1

    78ca77d73e696c08c75d0a3ca3d43833f95fbf25

  • SHA256

    52e8e2163c3918de5cb183abe3be134e11d83436d239e78e571fa9c198973fec

  • SHA512

    1adea0d508fe2c2c2bc793907241467d80644d58cdda0da6269e32148f5f94fff19834a03f59f79ac8f21565acd0e861b4c5a4fe20526a4a584980381fe2ab61

  • SSDEEP

    3072:0ulG96P/KdN8HdvkXfIIIIIIIIIIIIIIIIIIIIIIIIIIIIxJIIIIIIIIIIIIIIIS:02Hd8XzKedQBRZFeE7BUBBb9l

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\52e8e2163c3918de5cb183abe3be134e11d83436d239e78e571fa9c198973fec.exe
    "C:\Users\Admin\AppData\Local\Temp\52e8e2163c3918de5cb183abe3be134e11d83436d239e78e571fa9c198973fec.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1672
    • C:\Users\Admin\AppData\Local\Temp\mas.exe
      "C:\Users\Admin\AppData\Local\Temp\mas.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:984
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\mas.exe" "mas.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1092

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\mas.exe

    Filesize

    307KB

    MD5

    0eaf291e0565a86af393bc576ebf0140

    SHA1

    78ca77d73e696c08c75d0a3ca3d43833f95fbf25

    SHA256

    52e8e2163c3918de5cb183abe3be134e11d83436d239e78e571fa9c198973fec

    SHA512

    1adea0d508fe2c2c2bc793907241467d80644d58cdda0da6269e32148f5f94fff19834a03f59f79ac8f21565acd0e861b4c5a4fe20526a4a584980381fe2ab61

  • C:\Users\Admin\AppData\Local\Temp\mas.exe

    Filesize

    307KB

    MD5

    0eaf291e0565a86af393bc576ebf0140

    SHA1

    78ca77d73e696c08c75d0a3ca3d43833f95fbf25

    SHA256

    52e8e2163c3918de5cb183abe3be134e11d83436d239e78e571fa9c198973fec

    SHA512

    1adea0d508fe2c2c2bc793907241467d80644d58cdda0da6269e32148f5f94fff19834a03f59f79ac8f21565acd0e861b4c5a4fe20526a4a584980381fe2ab61

  • \Users\Admin\AppData\Local\Temp\mas.exe

    Filesize

    307KB

    MD5

    0eaf291e0565a86af393bc576ebf0140

    SHA1

    78ca77d73e696c08c75d0a3ca3d43833f95fbf25

    SHA256

    52e8e2163c3918de5cb183abe3be134e11d83436d239e78e571fa9c198973fec

    SHA512

    1adea0d508fe2c2c2bc793907241467d80644d58cdda0da6269e32148f5f94fff19834a03f59f79ac8f21565acd0e861b4c5a4fe20526a4a584980381fe2ab61

  • memory/984-64-0x00000000744F0000-0x0000000074A9B000-memory.dmp

    Filesize

    5.7MB

  • memory/984-65-0x00000000744F0000-0x0000000074A9B000-memory.dmp

    Filesize

    5.7MB

  • memory/1672-54-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

    Filesize

    8KB

  • memory/1672-55-0x00000000744F0000-0x0000000074A9B000-memory.dmp

    Filesize

    5.7MB

  • memory/1672-62-0x00000000744F0000-0x0000000074A9B000-memory.dmp

    Filesize

    5.7MB