Analysis

  • max time kernel
    149s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 10:07

General

  • Target
    LETTER_OF_AUTHORIZATION.js
  • Size 2.9MB
  • Sample260910-l5qrasvtcs
  • SHA256 6f8de7554244b802dfe7f28a7b842a9aa91e3cfbf39c34ec4a67b659b5ff63bb
  • 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
  • Badlisted process makes network request 4 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
  • ConfuserEx .NET packer 2 IoCs

    Detects ConfuserEx .NET packer.

  • Suspicious use of SetThreadContext 20 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Kills process with taskkill 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 62 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 61 IoCs
  • outlook_office_path 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\LETTER_OF_AUTHORIZATION.js
    1⤵
    • Badlisted process makes network request
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3556
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_DomlyN0CYM5V_1789034838568.ps1"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:6064
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
        3⤵
          PID:4576
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
          3⤵
            PID:4116
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
            3⤵
              PID:4112
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
              3⤵
                PID:4964
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                3⤵
                  PID:4960
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                  3⤵
                  • Suspicious use of SetThreadContext
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious behavior: MapViewOfSection
                  PID:2412
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                  3⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:2484
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                  3⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:5452
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                  3⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:2016
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                  3⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:2692
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                  3⤵
                    PID:2088
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                    3⤵
                      PID:5116
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                      3⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:4696
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                      3⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:3664
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                      3⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:2340
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                      3⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:5572
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                      3⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1076
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                      3⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:2560
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                      3⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1524
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                      3⤵
                        PID:2740
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                        3⤵
                          PID:5696
                        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                          3⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:5848
                        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                          3⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:1452
                        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                          3⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:1460
                        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
                          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
                          3⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:1512
                      • C:\Windows\SysWOW64\gpresult.exe
                        "C:\Windows\SysWOW64\gpresult.exe"
                        2⤵
                        • 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:5316
                        • C:\Program Files\Mozilla Firefox\Firefox.exe
                          "C:\Program Files\Mozilla Firefox\Firefox.exe"
                          3⤵
                            PID:4500
                        • C:\Windows\System32\taskkill.exe
                          "C:\Windows\System32\taskkill.exe" /f /im wscript.exe
                          2⤵
                          • Kills process with taskkill
                          • Suspicious use of AdjustPrivilegeToken
                          PID:6132

                      Network

                            MITRE ATT&CK Enterprise v16

                            Replay Monitor

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                            Downloads

                            ps_DomlyN0CYM5V_1789034838568.ps1

                            • Path C:\Temp\ps_DomlyN0CYM5V_1789034838568.ps1
                            • Size 2.2MB
                            • SHA256 d6be73838700bdae174a02aa3e95442b3d4a9a7b56c875f3075b4246863ad0db
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            memory/2412-37-0x0000000001330000-0x0000000001376000-memory.dmp

                            memory/2412-28-0x0000000001330000-0x0000000001376000-memory.dmp

                            memory/2412-31-0x0000000001940000-0x0000000001CB4000-memory.dmp

                            memory/2412-26-0x0000000000400000-0x0000000000446000-memory.dmp

                            memory/2412-32-0x0000000001330000-0x0000000001376000-memory.dmp

                            memory/2412-36-0x0000000001330000-0x0000000001376000-memory.dmp

                            memory/3556-43-0x0000022787B30000-0x0000022787C09000-memory.dmp

                            memory/3556-33-0x0000000000DA0000-0x000000000291C000-memory.dmp

                            memory/3556-40-0x0000000000DA0000-0x000000000291C000-memory.dmp

                            memory/3556-73-0x0000022787B30000-0x0000022787C09000-memory.dmp

                            memory/4500-54-0x0000021EEF9B0000-0x0000021EEFA83000-memory.dmp

                            memory/5316-39-0x0000000000890000-0x00000000008D3000-memory.dmp

                            memory/5316-35-0x0000000000890000-0x00000000008D3000-memory.dmp

                            memory/6064-15-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-12-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-19-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-20-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-21-0x000001AD53390000-0x000001AD534BF000-memory.dmp

                            memory/6064-22-0x000001AD3AD30000-0x000001AD3AD44000-memory.dmp

                            memory/6064-23-0x000001AD531E0000-0x000001AD531E6000-memory.dmp

                            memory/6064-25-0x000001AD53210000-0x000001AD53224000-memory.dmp

                            memory/6064-17-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-27-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-16-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-29-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-30-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-1-0x00007FFCAE0EF000-0x00007FFCAE0F0000-memory.dmp

                            memory/6064-14-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-13-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-34-0x000001AD53390000-0x000001AD534BF000-memory.dmp

                            memory/6064-18-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-11-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-10-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-9-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-7-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-41-0x000001AD53390000-0x000001AD534BF000-memory.dmp

                            memory/6064-5-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-45-0x000001AD53390000-0x000001AD534BF000-memory.dmp

                            memory/6064-6-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-55-0x000001AD53390000-0x000001AD534BF000-memory.dmp

                            memory/6064-58-0x000001AD53390000-0x000001AD534BF000-memory.dmp

                            memory/6064-61-0x000001AD53390000-0x000001AD534BF000-memory.dmp

                            memory/6064-64-0x000001AD53390000-0x000001AD534BF000-memory.dmp

                            memory/6064-67-0x000001AD53390000-0x000001AD534BF000-memory.dmp

                            memory/6064-70-0x000001AD53390000-0x000001AD534BF000-memory.dmp

                            memory/6064-71-0x000001AD53390000-0x000001AD534BF000-memory.dmp

                            memory/6064-72-0x00007FFCADF60000-0x00007FFCAE904000-memory.dmp

                            memory/6064-4-0x000001AD3AD00000-0x000001AD3AD22000-memory.dmp