Analysis

  • max time kernel
    119s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/01/2025, 15:13

General

  • Target
    3dacb43940b1fbbb8f79c33ed2a9224235628933021b60e44796f880a7bea25fN.exe
  • Size 56KB
  • Sample250127-sl2ssavpaj
  • SHA256 3dacb43940b1fbbb8f79c33ed2a9224235628933021b60e44796f880a7bea25f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 12 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 6 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 6 IoCs
  • Disables RegEdit via registry modification 6 IoCs
  • Disables Task Manager via registry modification
  • Disables cmd.exe use via registry modification 6 IoCs
  • Disables use of System Restore points 1 TTPs
  • Executes dropped EXE 35 IoCs
  • Loads dropped DLL 6 IoCs
  • Modifies system executable filetype association 2 TTPs 64 IoCs
  • Adds Run key to start application 2 TTPs 24 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 18 IoCs
  • Drops autorun.inf file 1 TTPs 8 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 40 IoCs
  • Drops file in Windows directory 26 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 36 IoCs

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

  • Modifies Control Panel 54 IoCs
  • Modifies Internet Explorer settings 1 TTPs 18 IoCs
  • Modifies Internet Explorer start page 1 TTPs 6 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 5 IoCs
  • Suspicious use of SetWindowsHookEx 36 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3dacb43940b1fbbb8f79c33ed2a9224235628933021b60e44796f880a7bea25fN.exe
    "C:\Users\Admin\AppData\Local\Temp\3dacb43940b1fbbb8f79c33ed2a9224235628933021b60e44796f880a7bea25fN.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Disables RegEdit via registry modification
    • Disables cmd.exe use via registry modification
    • Modifies system executable filetype association
    • Adds Run key to start application
    • Enumerates connected drives
    • Modifies WinLogon
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies Internet Explorer settings
    • Modifies Internet Explorer start page
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:520
    • C:\Windows\Tiwi.exe
      C:\Windows\Tiwi.exe
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Disables RegEdit via registry modification
      • Disables cmd.exe use via registry modification
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Adds Run key to start application
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops autorun.inf file
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies Control Panel
      • Modifies Internet Explorer settings
      • Modifies Internet Explorer start page
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:460
      • C:\Windows\Tiwi.exe
        C:\Windows\Tiwi.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2212
      • C:\Windows\SysWOW64\IExplorer.exe
        C:\Windows\system32\IExplorer.exe
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2708
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4784
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2412
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4916
    • C:\Windows\SysWOW64\IExplorer.exe
      C:\Windows\system32\IExplorer.exe
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Disables RegEdit via registry modification
      • Disables cmd.exe use via registry modification
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Adds Run key to start application
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies Control Panel
      • Modifies Internet Explorer settings
      • Modifies Internet Explorer start page
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:4548
      • C:\Windows\Tiwi.exe
        C:\Windows\Tiwi.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1968
      • C:\Windows\SysWOW64\IExplorer.exe
        C:\Windows\system32\IExplorer.exe
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:384
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1920
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3156
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4312
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Disables RegEdit via registry modification
      • Disables cmd.exe use via registry modification
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Adds Run key to start application
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies Control Panel
      • Modifies Internet Explorer settings
      • Modifies Internet Explorer start page
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:3428
      • C:\Windows\Tiwi.exe
        C:\Windows\Tiwi.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5104
      • C:\Windows\SysWOW64\IExplorer.exe
        C:\Windows\system32\IExplorer.exe
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2116
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1440
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2368
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:584
    • C:\Windows\Tiwi.exe
      C:\Windows\Tiwi.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1972
    • C:\Windows\SysWOW64\IExplorer.exe
      C:\Windows\system32\IExplorer.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2484
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4396
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Disables RegEdit via registry modification
      • Disables cmd.exe use via registry modification
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Adds Run key to start application
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies Control Panel
      • Modifies Internet Explorer settings
      • Modifies Internet Explorer start page
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:3640
      • C:\Windows\Tiwi.exe
        C:\Windows\Tiwi.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1736
      • C:\Windows\SysWOW64\IExplorer.exe
        C:\Windows\system32\IExplorer.exe
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3592
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1892
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3200
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4756
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Disables RegEdit via registry modification
      • Disables cmd.exe use via registry modification
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Adds Run key to start application
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies Control Panel
      • Modifies Internet Explorer settings
      • Modifies Internet Explorer start page
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:3916
      • C:\Windows\Tiwi.exe
        C:\Windows\Tiwi.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4420
      • C:\Windows\SysWOW64\IExplorer.exe
        C:\Windows\system32\IExplorer.exe
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:836
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\winlogon.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3972
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:452
      • C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe
        "C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2240
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\imoet.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1328
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:244

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        lsass.exe

        • Path C:\Users\Admin\AppData\Local\WINDOWS\lsass.exe
        • Size 45KB
        • SHA256 b7892316bcb357d112945929c66bde200bfb8be8711cb9cb431b49b76ef73fa7
        • MD5 SHA1 SHA512 SSDEEP

        winlogon.exe

        • Path C:\Users\Admin\AppData\Local\WINDOWS\winlogon.exe
        • Size 56KB
        • SHA256 9c88d80ac78a7141a881beb6bb6b9e5be349e115c202dd519acc7c9853103702
        • MD5 SHA1 SHA512 SSDEEP

        cute.exe

        • Path C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe
        • Size 56KB
        • SHA256 35710d9f04e887afeab9d582f0be43fe96d0264cbe26d3a9986f5029dab1ce58
        • MD5 SHA1 SHA512 SSDEEP

        cute.exe

        • Path C:\Users\Admin\Local Settings\Application Data\WINDOWS\cute.exe
        • Size 56KB
        • SHA256 03b26b6e8b1de17e53bfb3d471ffe723bfda5e6c199cd76adfb7006c65d36bbf
        • MD5 SHA1 SHA512 SSDEEP

        lsass.exe

        • Path C:\Users\Admin\Local Settings\Application Data\WINDOWS\lsass.exe
        • Size 45KB
        • SHA256 e9eb549346630d83038d62894067e076ae0a7d3e10b42371927d3b49cd1de0a0
        • MD5 SHA1 SHA512 SSDEEP

        lsass.exe

        • Path C:\Users\Admin\Local Settings\Application Data\WINDOWS\lsass.exe
        • Size 45KB
        • SHA256 b5d52facf88600c1d28eee9dfa29576d5fd31d122f4c20ae6a220be2c1cbd9e6
        • MD5 SHA1 SHA512 SSDEEP

        lsass.exe

        • Path C:\Users\Admin\Local Settings\Application Data\WINDOWS\lsass.exe
        • Size 45KB
        • SHA256 41dc94654df73276d06e6bd502b4fcbcf8389d95c56ba22b80ee3f833cfee91d
        • MD5 SHA1 SHA512 SSDEEP

        MSVBVM60.DLL

        • Path C:\Windows\MSVBVM60.DLL
        • Size 1.4MB
        • SHA256 898288bd3b21d0e7d5f406df2e0b69a5bbfa4f241baf29a2cdf8a3cf4d4619f2
        • MD5 SHA1 SHA512 SSDEEP

        IExplorer.exe

        • Path C:\Windows\SysWOW64\IExplorer.exe
        • Size 56KB
        • SHA256 7a6a4d958c154db4fa96bf76b44279e72c7d9694cb6a541d7d4f4cc51d09f851
        • MD5 SHA1 SHA512 SSDEEP

        shell.exe

        • Path C:\Windows\SysWOW64\shell.exe
        • Size 56KB
        • SHA256 3dacb43940b1fbbb8f79c33ed2a9224235628933021b60e44796f880a7bea25f
        • MD5 SHA1 SHA512 SSDEEP

        tiwi.exe

        • Path C:\Windows\tiwi.exe
        • Size 56KB
        • SHA256 22892ae23eddc21915c867d419dc8f61a7d23cae358914ee20ea796c08944861
        • MD5 SHA1 SHA512 SSDEEP

        present.txt

        • Path C:\present.txt
        • Size 729B
        • SHA256 574a3a546332854d82e4f5b54cc5e8731fe9828e14e89a728be7e53ed21f6bad
        • MD5 SHA1 SHA512

        autorun.inf

        • Path F:\autorun.inf
        • Size 39B
        • SHA256 e6e9c5ea41aaf8b2145701f94289458ef5c8467f8c8a2954caddf8513adcf26e
        • MD5 SHA1 SHA512

        memory/384-299-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/384-282-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/460-96-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/460-283-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/520-276-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/520-409-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/520-0-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/1920-311-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/1920-306-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/1968-249-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/1968-278-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/1972-148-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/1972-168-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/2116-291-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/2116-307-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/2212-253-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/2484-167-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/2484-211-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/2708-284-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/2708-254-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/3428-297-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/3428-110-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/3640-428-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/3640-277-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/4396-218-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/4396-255-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/4548-290-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/4548-102-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/4784-304-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/4784-298-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/5104-289-0x00000000003E0000-0x00000000009DF000-memory.dmp

        memory/5104-279-0x00000000003E0000-0x00000000009DF000-memory.dmp