Resubmissions

09/03/2025, 01:58

250309-cdv29swybs 10

08/03/2025, 06:55

250308-hp35xatjt9 10

08/03/2025, 04:53

250308-fh1ebssky5 10

Analysis

  • max time kernel
    103s
  • max time network
    85s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/03/2025, 01:58

General

  • Target

    My-Skidded-malwares-main/YuukaKazami.exe

  • Size

    683KB

  • MD5

    becbca36306f3a77833e458addf17816

  • SHA1

    51df57f96256f1ac0f97ae96e14dd97023a8976a

  • SHA256

    a57afb8488efc3bc9134e970ef9655e8cbc88fdce83825e7000849b85167d8c2

  • SHA512

    533c4843a1956d86e6deb8404ca7072daabe9478de5d3aa4377f6bb3c4f40378ebb4eb1cec7c6dbf9000956bc0e5f2204d0667d32d9e843964665ab12edfc20e

  • SSDEEP

    12288:RDbpr2trUqUeBhfUHzXC+cHJ8XeSb++MnaTbvud74:RDdsrsG5UHulCXR+xaTbSc

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\My-Skidded-malwares-main\YuukaKazami.exe
    "C:\Users\Admin\AppData\Local\Temp\My-Skidded-malwares-main\YuukaKazami.exe"
    1⤵
    • Adds Run key to start application
    • Writes to the Master Boot Record (MBR)
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks.exe /Create /TN CustomMBR /ru SYSTEM /SC ONSTART /TR "C:\Users\Admin\AppData\Local\Temp\My-Skidded-malwares-main\YuukaKazami.exe -BypassWarning"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1324

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1952-0-0x0000000000680000-0x0000000000681000-memory.dmp

    Filesize

    4KB

  • memory/1952-1-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB