Analysis

  • max time kernel
    39s
  • max time network
    43s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/09/2026, 06:32

General

  • Target
    b78a29eab41dc72b66375a7d9a8fad8d5942bfe3be9bed26a8bc9a0287c446e0.exe
  • Size 5.8MB
  • Sample260925-hak1savshw
  • SHA256 b78a29eab41dc72b66375a7d9a8fad8d5942bfe3be9bed26a8bc9a0287c446e0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 TTPs 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 24 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Deobfuscate/Decode Files or Information 1 TTPs 1 IoCs

    Payload decoded via CertUtil.

  • Suspicious use of SetThreadContext 1 IoCs
  • Executes a command shell one-liner 1 TTPs 2 IoCs

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

  • Modifies trusted root certificate store through registry 1 TTPs 2 IoCs

    A root certificate was added, modified, or removed in the trusted certificate store registry paths.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies system certificate store 2 TTPs 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\explorer.exe
    explorer.exe /LOADSAVEDWINDOWS
    1⤵
      PID:5192
      • C:\Users\Admin\AppData\Local\Temp\b78a29eab41dc72b66375a7d9a8fad8d5942bfe3be9bed26a8bc9a0287c446e0.exe
        "C:\Users\Admin\AppData\Local\Temp\b78a29eab41dc72b66375a7d9a8fad8d5942bfe3be9bed26a8bc9a0287c446e0.exe"
        2⤵
        • Modifies trusted root certificate store through registry
        • Modifies system certificate store
        • Suspicious use of WriteProcessMemory
        PID:2804
        • C:\Windows\system32\cmd.exe
          cmd.exe /c C:\Users\Admin\AppData\Local\Temp\svchost_2804.bat
          3⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:704
          • C:\Windows\system32\certutil.exe
            certutil -decode "C:\Users\Admin\AppData\Local\Temp\svchost_2804.bat" "C:\Users\Admin\AppData\Local\Temp\uuhnx24050.zip"
            4⤵
            • Deobfuscate/Decode Files or Information
            PID:3260
          • C:\Windows\System32\tar.exe
            "C:\Windows\System32\tar.exe" -xf "C:\Users\Admin\AppData\Local\Temp\uuhnx24050.zip" -C "C:\Users\Admin\AppData\Local\Core\d80e398a"
            4⤵
              PID:1172
            • C:\Windows\system32\xcopy.exe
              xcopy /E /I /Y /Q /H /R "C:\Users\Admin\AppData\Local\Core\d80e398a\*" "C:\Users\Admin\AppData\Local\Shared\0079d320\"
              4⤵
                PID:4464
              • C:\Windows\system32\xcopy.exe
                xcopy /E /I /Y /Q /H /R "C:\Users\Admin\AppData\Local\Core\d80e398a\*" "C:\Users\Admin\AppData\Local\System\b2c37b64\"
                4⤵
                  PID:3460
                • C:\Windows\system32\schtasks.exe
                  schtasks /Create /TN "Session7a7f348e" /XML "C:\Users\Admin\AppData\Local\Temp\fpkwg26009.xml" /F
                  4⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:3496
                • C:\Windows\system32\schtasks.exe
                  schtasks /Create /TN "DesktopModule v76" /XML "C:\Users\Admin\AppData\Local\Temp\fpkwg26009.xml" /F
                  4⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:5428
                • C:\Windows\system32\reg.exe
                  reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v ComponentProvider5db5b1 /t REG_SZ /d "C:\Users\Admin\AppData\Local\Core\d80e398a\GraphicsCache.exe" /f
                  4⤵
                  • Adds Run key to start application
                  PID:1040
                • C:\Windows\system32\reg.exe
                  reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v SessionHost508fc887 /t REG_SZ /d "C:\Users\Admin\AppData\Local\System\b2c37b64\GraphicsCache.exe" /f
                  4⤵
                  • Adds Run key to start application
                  PID:1292
                • C:\Users\Admin\AppData\Local\Core\d80e398a\GraphicsCache.exe
                  "C:\Users\Admin\AppData\Local\Core\d80e398a\GraphicsCache.exe"
                  4⤵
                  • Suspicious use of NtCreateUserProcessOtherParentProcess
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • Suspicious use of SetThreadContext
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:4076
              • C:\Windows\system32\cmd.exe
                cmd.exe /c "ping -n 6 127.0.0.1 >nul & del /f /q \"C:\Users\Admin\AppData\Local\Temp\b78a29eab41dc72b66375a7d9a8fad8d5942bfe3be9bed26a8bc9a0287c446e0.exe\""
                3⤵
                • Executes a command shell one-liner
                • System Network Configuration Discovery: Internet Connection Discovery
                • Suspicious use of WriteProcessMemory
                PID:672
                • C:\Windows\system32\PING.EXE
                  ping -n 6 127.0.0.1
                  4⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2800
            • C:\Windows\System32\WerFault.exe
              "C:\Windows\System32\WerFault.exe" -u -p 4076 -s 240731406
              2⤵
                PID:3712
            • C:\Users\Admin\AppData\Local\Shared\0079d320\GraphicsCache.exe
              C:\Users\Admin\AppData\Local\Shared\0079d320\GraphicsCache.exe
              1⤵
              • Executes dropped EXE
              • Loads dropped DLL
              PID:4780
            • C:\Users\Admin\AppData\Local\Core\d80e398a\GraphicsCache.exe
              C:\Users\Admin\AppData\Local\Core\d80e398a\GraphicsCache.exe
              1⤵
              • Executes dropped EXE
              • Loads dropped DLL
              PID:2928
            • C:\Users\Admin\AppData\Local\System\b2c37b64\GraphicsCache.exe
              C:\Users\Admin\AppData\Local\System\b2c37b64\GraphicsCache.exe
              1⤵
              • Executes dropped EXE
              • Loads dropped DLL
              PID:3776

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  GraphicsCache.exe

                  • Path C:\Users\Admin\AppData\Local\Core\d80e398a\GraphicsCache.exe
                  • Size 292KB
                  • SHA256 894aeebd244459f700c03f17371ebe1ccd9b8f90533910cfd713a01cfd6a4d39
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  libmfx64-gen.dll

                  • Path C:\Users\Admin\AppData\Local\Core\d80e398a\libmfx64-gen.dll
                  • Size 230KB
                  • SHA256 7df640081397858376001bddb27dcecba742751c3e55a1efb8f1ca8646d3a09b
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  msvcp140.dll

                  • Path C:\Users\Admin\AppData\Local\Core\d80e398a\msvcp140.dll
                  • Size 628KB
                  • SHA256 7c26614e1d733892c2deac7e245ce115504b1d80592dd0a01b08e3e5a55f89ca
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  splash.png

                  • Path C:\Users\Admin\AppData\Local\Core\d80e398a\splash.png
                  • Size 12.1MB
                  • SHA256 d3c35b1896296472fc2af8e3e7402dfd0e5905061c50dc09af14a3cb6fdf883a
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  vcruntime140.dll

                  • Path C:\Users\Admin\AppData\Local\Core\d80e398a\vcruntime140.dll
                  • Size 174KB
                  • SHA256 d1f4225df2cd877dbf130d5668a021dce3f94118455ff5ec952061c30afc9ce7
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  vcruntime140_1.dll

                  • Path C:\Users\Admin\AppData\Local\Core\d80e398a\vcruntime140_1.dll
                  • Size 48KB
                  • SHA256 a7146c08f89fe5b04541ab507cdb59ff7b44534d4ba3c668a426c6450a03434e
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  fpkwg26009.xml

                  • Path C:\Users\Admin\AppData\Local\Temp\fpkwg26009.xml
                  • Size 740B
                  • SHA256 d846fa25d5216b0bd5aeb54382d1c0196ae38ce9ebb385879e537b7896c12b80
                  • MD5 SHA1 SHA512 TLSH

                  fpkwg26009.xml

                  • Path C:\Users\Admin\AppData\Local\Temp\fpkwg26009.xml
                  • Size 842B
                  • SHA256 f9364e1e53d5007555ab2a4fd112375a40434c3a7aa0dd69480212f4e37d9486
                  • MD5 SHA1 SHA512 TLSH

                  svchost_2804.bat

                  • Path C:\Users\Admin\AppData\Local\Temp\svchost_2804.bat
                  • Size 17.3MB
                  • SHA256 782881decca3546fa7f0bb26b73664f6995272192713494d133c82634f841a67
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  uuhnx24050.zip

                  • Path C:\Users\Admin\AppData\Local\Temp\uuhnx24050.zip
                  • Size 12.6MB
                  • SHA256 367960fb3fcce06fd6965650b218ab19c92bc27fa409045211c68211b90e046b
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  memory/2928-85-0x00007FFB4AB70000-0x00007FFB4ABB2000-memory.dmp

                  memory/2928-86-0x00007FFB46700000-0x00007FFB46742000-memory.dmp

                  memory/3712-66-0x0000025307F60000-0x000002530884A000-memory.dmp

                  memory/3712-77-0x0000025308850000-0x000002530B193000-memory.dmp

                  memory/3712-79-0x0000025308850000-0x000002530B193000-memory.dmp

                  memory/3712-80-0x0000025308850000-0x000002530B193000-memory.dmp

                  memory/3712-78-0x0000025308850000-0x000002530B193000-memory.dmp

                  memory/3712-67-0x0000025308850000-0x000002530B193000-memory.dmp

                  memory/3712-75-0x0000025308850000-0x000002530B193000-memory.dmp

                  memory/3712-76-0x0000025308850000-0x000002530B193000-memory.dmp

                  memory/3776-88-0x00007FFB363C0000-0x00007FFB36402000-memory.dmp

                  memory/3776-87-0x00007FFB39340000-0x00007FFB39382000-memory.dmp

                  memory/4076-30-0x0000016DE9FB0000-0x0000016DEABCE000-memory.dmp

                  memory/4076-41-0x0000016DE9FB0000-0x0000016DEABCE000-memory.dmp

                  memory/4076-42-0x0000016DE9FB0000-0x0000016DEABCE000-memory.dmp

                  memory/4076-82-0x00007FFB46700000-0x00007FFB46742000-memory.dmp

                  memory/4076-81-0x00007FFB4AB70000-0x00007FFB4ABB2000-memory.dmp

                  memory/4076-43-0x0000016DE9FB0000-0x0000016DEABCE000-memory.dmp

                  memory/4076-29-0x0000016DE9390000-0x0000016DE9FAA000-memory.dmp

                  memory/4076-28-0x0000016DE8770000-0x0000016DE9389000-memory.dmp

                  memory/4780-83-0x00007FFB44C40000-0x00007FFB44C82000-memory.dmp

                  memory/4780-84-0x00007FFB3B770000-0x00007FFB3B7B2000-memory.dmp