Analysis

  • max time kernel
    149s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    17/08/2026, 03:48

General

  • Target
    d4fca6b637494981077cb99b3cfc5571cbc8abecab6760d4d07d2b4db4db900b.exe
  • Size 5.3MB
  • Sample260817-ec5lessgmd
  • SHA256 d4fca6b637494981077cb99b3cfc5571cbc8abecab6760d4d07d2b4db4db900b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 20 IoCs
  • Drops file in Drivers directory 9 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d4fca6b637494981077cb99b3cfc5571cbc8abecab6760d4d07d2b4db4db900b.exe
    "C:\Users\Admin\AppData\Local\Temp\d4fca6b637494981077cb99b3cfc5571cbc8abecab6760d4d07d2b4db4db900b.exe"
    1⤵
    • Drops file in Drivers directory
    • Suspicious use of WriteProcessMemory
    PID:2580
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Windows\System32\drivers\DriverData\setup123.bat" "
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:5556
      • C:\Windows\System32\drivers\DriverData\patch.exe
        C:\Windows\System32\drivers\DriverData\patch.exe
        3⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4536
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
          "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\tzyokzfo\tzyokzfo.cmdline"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4240
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESC2DE.tmp" "c:\Users\Admin\AppData\Local\Temp\tzyokzfo\CSC5E2F984B2ACA48C8A8D8B22F81417627.TMP"
            5⤵
              PID:2920
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
            "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\tzyokzfo\tzyokzfo.cmdline"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4644
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
              C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESC407.tmp" "c:\Users\Admin\AppData\Local\Temp\tzyokzfo\CSC85C6FA0598134E439AA5A0D97585173F.TMP"
              5⤵
                PID:5740

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            RESC2DE.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\RESC2DE.tmp
            • Size 1KB
            • SHA256 9c6cffb6c19bcacaa3b70d11f95ae827210e0bd4a1fde1f1df3d6e777fe91268
            • MD5 SHA1 SHA512 TLSH

            RESC407.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\RESC407.tmp
            • Size 1KB
            • SHA256 3cc9d253a3dc20e8021a385d279a526c8adbb6466c89b76bd1707f0599b26485
            • MD5 SHA1 SHA512 TLSH

            tzyokzfo.dll

            • Path C:\Users\Admin\AppData\Local\Temp\tzyokzfo\tzyokzfo.dll
            • Size 3KB
            • SHA256 ab927d4a95944e3e0bb32c99fdf11ac13509edd6cdf7603bb4ba049b30fa9471
            • MD5 SHA1 SHA512 TLSH

            tzyokzfo.dll

            • Path C:\Users\Admin\AppData\Local\Temp\tzyokzfo\tzyokzfo.dll
            • Size 4KB
            • SHA256 962713e5d60d4e40977e30761d24e398fa329667556f2fcc620b006fb91844c8
            • MD5 SHA1 SHA512 TLSH

            tzyokzfo.pdb

            • Path C:\Users\Admin\AppData\Local\Temp\tzyokzfo\tzyokzfo.pdb
            • Size 11KB
            • SHA256 df1b21b7e8e3215822c527ff39433874d6128a2f8e087f93d38d127682bde6c6
            • MD5 SHA1 SHA512 SSDEEP TLSH

            tzyokzfo.pdb

            • Path C:\Users\Admin\AppData\Local\Temp\tzyokzfo\tzyokzfo.pdb
            • Size 11KB
            • SHA256 45dd8b649962e0da07026deca68731ddfab74ec77ec3e045bb0c83ae9960cd3d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            acpidev.dat

            • Path C:\Windows\System32\Drivers\DriverData\acpidev.dat
            • Size 4.6MB
            • SHA256 0a04701067d10e1ec22a8fd8f73782afd0d9f5b26cd238a105cc2539ecda4ccc
            • MD5 SHA1 SHA512 SSDEEP TLSH

            usbcir.dat

            • Path C:\Windows\System32\Drivers\DriverData\usbcir.dat
            • Size 386KB
            • SHA256 dc6f6a1dae57a1014b0cc071018a8b0928a858a566d4f81994bc2e5f1b4c2cbd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            patch.exe

            • Path C:\Windows\System32\drivers\DriverData\patch.exe
            • Size 13KB
            • SHA256 9b5ff51fc4b10f91ea4248f73359a5ce042f837dd424200bfab167b4fb5feb85
            • MD5 SHA1 SHA512 SSDEEP TLSH

            setup123.bat

            • Path C:\Windows\System32\drivers\DriverData\setup123.bat
            • Size 228B
            • SHA256 d69f00bb41d2404560106d6878c16d3819e134288229536c47040c15c5fb5038
            • MD5 SHA1 SHA512 TLSH

            CSC5E2F984B2ACA48C8A8D8B22F81417627.TMP

            • Path \??\c:\Users\Admin\AppData\Local\Temp\tzyokzfo\CSC5E2F984B2ACA48C8A8D8B22F81417627.TMP
            • Size 652B
            • SHA256 a35bd0d2f28ac57bedc02ea7847d3a4daf046ff8396026671e661f088c813816
            • MD5 SHA1 SHA512 TLSH

            tzyokzfo.0.cs

            • Path \??\c:\Users\Admin\AppData\Local\Temp\tzyokzfo\tzyokzfo.0.cs
            • Size 82B
            • SHA256 dc4fe976865cf1f53de8f1f81206fbb0c1c562a96c90f57c4cd5bfb0ffecbcd9
            • MD5 SHA1 SHA512 TLSH

            tzyokzfo.0.cs

            • Path \??\c:\Users\Admin\AppData\Local\Temp\tzyokzfo\tzyokzfo.0.cs
            • Size 283B
            • SHA256 7f3b52e5000161d78b030777007a2451d0ed9faa665eed4f7efb5d50a9f3fa08
            • MD5 SHA1 SHA512 TLSH

            tzyokzfo.cmdline

            • Path \??\c:\Users\Admin\AppData\Local\Temp\tzyokzfo\tzyokzfo.cmdline
            • Size 914B
            • SHA256 b0a675d2758a5755e7c618d5ba278c8c56ad6ae7f8718f5aab16c133df051820
            • MD5 SHA1 SHA512 TLSH

            memory/4536-136-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-120-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-42-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp

            memory/4536-24-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp

            memory/4536-52-0x0000019313120000-0x0000019313128000-memory.dmp

            memory/4536-23-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp

            memory/4536-19-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp

            memory/4536-54-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp

            memory/4536-18-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp

            memory/4536-56-0x000001932CB60000-0x000001932CBC6000-memory.dmp

            memory/4536-17-0x0000019311260000-0x0000019311268000-memory.dmp

            memory/4536-64-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-182-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-180-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-178-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-177-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-174-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-172-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-168-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-166-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-164-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-162-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-158-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-156-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-154-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-152-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-148-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-146-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-144-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-140-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-16-0x00007FF8EA99F000-0x00007FF8EA9A0000-memory.dmp

            memory/4536-134-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-132-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-130-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-128-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-126-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-122-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-36-0x00000193130D0000-0x00000193130D8000-memory.dmp

            memory/4536-116-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-114-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-112-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-104-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-98-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-96-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-94-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-92-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-90-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-86-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-84-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-80-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-76-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-74-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-72-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-68-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-67-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-62-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-60-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-58-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-57-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-170-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-160-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-150-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-142-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-138-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-124-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-118-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-110-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-108-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-106-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-102-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-100-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-88-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-82-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-78-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-70-0x000001932CB60000-0x000001932CBC1000-memory.dmp

            memory/4536-860-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp