Analysis

  • max time kernel
    148s
  • max time network
    152s
  • 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, 08:24

General

  • Target
    Potvrdenie novej objednávky.PDF.exe
  • Size 1.0MB
  • Sample260925-ka8syswyez
  • SHA256 e0907a6a8bc42246d371ed78a42235838b1135fd6a32e5fd5caa7fcf48eb7696
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Formbook payload 4 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • SmartAssembly .NET packer 1 IoCs

    Detects SmartAssembly .NET packer.

  • Suspicious use of SetThreadContext 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 41 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 TTPs 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 56 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • outlook_office_path 1 IoCs

Processes

  • C:\Windows\explorer.exe
    explorer.exe /LOADSAVEDWINDOWS
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    PID:2952
    • C:\Users\Admin\AppData\Local\Temp\Potvrdenie novej objednávky.PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\Potvrdenie novej objednávky.PDF.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3568
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Potvrdenie novej objednávky.PDF.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3852
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        PID:1172
  • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$23ukfn=6108;$znbt2j=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$cnyx5f=Get-Date;$3jxgxo=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXGNaYS5leGU=')));$23ukfn=6108;& $znbt2j -FilePath $3jxgxo"
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5780
    • C:\Users\Admin\AppData\Roaming\cZa.exe
      "C:\Users\Admin\AppData\Roaming\cZa.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3960
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cZa.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4824
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
          PID:2028
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:6080
    • C:\Windows\SysWOW64\cmmon32.exe
      "C:\Windows\SysWOW64\cmmon32.exe"
      1⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      PID:5004
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        2⤵
          PID:2696

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 19KB
            • SHA256 d1a7374445f9282dd01c4a954bd4f9625153f721e06810d164f1904b428a0835
            • MD5 SHA1 SHA512 SSDEEP TLSH

            __PSScriptPolicyTest_5t0dotj1.sgx.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5t0dotj1.sgx.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512 TLSH

            cZa.exe

            • Path C:\Users\Admin\AppData\Roaming\cZa.exe
            • Size 1.0MB
            • SHA256 e0907a6a8bc42246d371ed78a42235838b1135fd6a32e5fd5caa7fcf48eb7696
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1172-15-0x0000000001560000-0x00000000015A6000-memory.dmp

            memory/1172-17-0x0000000001930000-0x0000000001CA4000-memory.dmp

            memory/1172-30-0x0000000001560000-0x00000000015A6000-memory.dmp

            memory/1172-49-0x0000000001560000-0x00000000015A6000-memory.dmp

            memory/1172-50-0x0000000001560000-0x00000000015A6000-memory.dmp

            memory/1172-14-0x0000000000400000-0x0000000000446000-memory.dmp

            memory/2696-70-0x00000213BFEF0000-0x00000213BFFFE000-memory.dmp

            memory/2952-52-0x0000000003510000-0x00000000035BD000-memory.dmp

            memory/3568-5-0x0000000005800000-0x000000000589C000-memory.dmp

            memory/3568-8-0x00000000750E2000-0x00000000750E3000-memory.dmp

            memory/3568-9-0x00000000750D0000-0x000000007588C000-memory.dmp

            memory/3568-10-0x0000000009720000-0x0000000009808000-memory.dmp

            memory/3568-24-0x00000000750D0000-0x000000007588C000-memory.dmp

            memory/3568-7-0x0000000005A30000-0x0000000005A4A000-memory.dmp

            memory/3568-6-0x00000000750D0000-0x000000007588C000-memory.dmp

            memory/3568-4-0x0000000005600000-0x000000000560A000-memory.dmp

            memory/3568-3-0x0000000005680000-0x0000000005712000-memory.dmp

            memory/3568-2-0x0000000005C40000-0x00000000061FA000-memory.dmp

            memory/3568-1-0x0000000000B20000-0x0000000000C30000-memory.dmp

            memory/3568-0-0x00000000750E2000-0x00000000750E3000-memory.dmp

            memory/3852-25-0x0000000005C00000-0x0000000005C1E000-memory.dmp

            memory/3852-43-0x0000000007550000-0x00000000075E6000-memory.dmp

            memory/3852-26-0x0000000006330000-0x000000000637C000-memory.dmp

            memory/3852-31-0x0000000007150000-0x0000000007186000-memory.dmp

            memory/3852-32-0x0000000075990000-0x00000000759DC000-memory.dmp

            memory/3852-23-0x0000000005C60000-0x0000000005FBB000-memory.dmp

            memory/3852-22-0x0000000005960000-0x00000000059C6000-memory.dmp

            memory/3852-36-0x0000000006560000-0x0000000006580000-memory.dmp

            memory/3852-38-0x0000000007190000-0x0000000007233000-memory.dmp

            memory/3852-11-0x0000000002720000-0x0000000002756000-memory.dmp

            memory/3852-40-0x0000000007920000-0x0000000007F9C000-memory.dmp

            memory/3852-41-0x00000000072E0000-0x00000000072FA000-memory.dmp

            memory/3852-42-0x0000000007350000-0x000000000735A000-memory.dmp

            memory/3852-21-0x0000000005150000-0x00000000051B6000-memory.dmp

            memory/3852-18-0x00000000050A0000-0x00000000050C2000-memory.dmp

            memory/3852-46-0x00000000750D0000-0x000000007588C000-memory.dmp

            memory/3852-12-0x00000000750D0000-0x000000007588C000-memory.dmp

            memory/3852-13-0x0000000005260000-0x00000000058AA000-memory.dmp

            memory/3852-16-0x0000000002820000-0x0000000002830000-memory.dmp

            memory/4536-48-0x0000000000510000-0x0000000003384000-memory.dmp

            memory/4536-39-0x0000000000510000-0x0000000003384000-memory.dmp

            memory/4824-56-0x00000000059A0000-0x0000000005CFB000-memory.dmp

            memory/4824-58-0x0000000006470000-0x00000000064BC000-memory.dmp

            memory/4824-59-0x0000000071280000-0x00000000712CC000-memory.dmp

            memory/4824-62-0x00000000071B0000-0x0000000007253000-memory.dmp

            memory/5004-51-0x00000000006C0000-0x0000000000703000-memory.dmp

            memory/5004-47-0x00000000006C0000-0x0000000000703000-memory.dmp

            memory/5780-27-0x00000299F0B50000-0x00000299F0B72000-memory.dmp