Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    17/05/2026, 17:44

General

  • Target
    Delta.exe
  • Size 21.3MB
  • Sample260517-wbbqdsft9k
  • SHA256 fa298d04439c2a2caf87bd421c74f43bacd07d639f0f57d6462282531a8e8f1e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: DonutLoader

    DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

  • Detects DonutLoader 2 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.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Delta.exe
    "C:\Users\Admin\AppData\Local\Temp\Delta.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1860
    • C:\Users\Admin\AppData\Local\Temp\c7613629e194.exe
      "C:\Users\Admin\AppData\Local\Temp\c7613629e194.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4568
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
        3⤵
          PID:2940
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe"
          3⤵
            PID:3468
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c powershell -C "Add-MpPreference -ExclusionExtension '.exe' -EA 0"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:4800
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              powershell -C "Add-MpPreference -ExclusionExtension '.exe' -EA 0"
              4⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious use of AdjustPrivilegeToken
              PID:4776
          • C:\Users\Admin\AppData\Local\MpDefenderCoreFolder\CoreWorker_GOBxHFpNYcKWOHH.exe
            "C:\Users\Admin\AppData\Local\MpDefenderCoreFolder\CoreWorker_GOBxHFpNYcKWOHH.exe"
            3⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2972
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -Command " $action = New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Local\MpDefenderCoreFolder\CoreWorker_GOBxHFpNYcKWOHH.exe' $trigger = New-ScheduledTaskTrigger -AtLogOn Register-ScheduledTask -Action $action -Trigger $trigger -TaskName 'CoreWorker_GOBxHFpNYcKWOHH-9637' -RunLevel Highest "
              4⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious use of AdjustPrivilegeToken
              PID:1216
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /c powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\MpDefenderCoreFolder'"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2368
              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\MpDefenderCoreFolder'"
                5⤵
                • Command and Scripting Interpreter: PowerShell
                • Suspicious use of AdjustPrivilegeToken
                PID:2088
      • C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"
        1⤵
          PID:3900
        • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
          "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
          1⤵
            PID:900
          • C:\Users\Admin\AppData\Local\MpDefenderCoreFolder\CoreWorker_GOBxHFpNYcKWOHH.exe
            C:\Users\Admin\AppData\Local\MpDefenderCoreFolder\CoreWorker_GOBxHFpNYcKWOHH.exe
            1⤵
            • Executes dropped EXE
            PID:4400

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                powershell.exe.log

                • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
                • Size 4KB
                • SHA256 e27390d57580e3dfba07bec3d8e430203bbc91e90f6937079b3fd52abc721bd4
                • MD5 SHA1 SHA512 SSDEEP TLSH

                StartupProfileData-NonInteractive

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                • Size 1KB
                • SHA256 813ab457b6b57b182d9d3c806a53c598121666942e76ed962b142c00c0fc1188
                • MD5 SHA1 SHA512 TLSH

                StartupProfileData-NonInteractive

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                • Size 1KB
                • SHA256 b79f569e6c453b33139dcd90442a80e59ac882a1e272a8e4a322d295bfac3ab0
                • MD5 SHA1 SHA512 TLSH

                CoreWorker_GOBxHFpNYcKWOHH.exe

                • Path C:\Users\Admin\AppData\Local\MpDefenderCoreFolder\CoreWorker_GOBxHFpNYcKWOHH.exe
                • Size 13KB
                • SHA256 27680f82001ad52345c3eb9feb15f243141955204d332f8c4715008a4ec53bc9
                • MD5 SHA1 SHA512 SSDEEP TLSH

                __PSScriptPolicyTest_cbn1nwge.sdb.ps1

                • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cbn1nwge.sdb.ps1
                • Size 60B
                • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                • MD5 SHA1 SHA512 TLSH

                c7613629e194.exe

                • Path C:\Users\Admin\AppData\Local\Temp\c7613629e194.exe
                • Size 1.1MB
                • SHA256 c6041ad628f3c63bb31ea773f6012d9820cbacba3129cc94ba73f71d6ba8d0c3
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/2088-98-0x00000232731E0000-0x0000023273293000-memory.dmp

                memory/2940-27-0x000001A4EFB20000-0x000001A4EFB3E000-memory.dmp

                memory/2940-25-0x000001A4D71F0000-0x000001A4D7200000-memory.dmp

                memory/2972-77-0x000001B9C7E40000-0x000001B9C7E4A000-memory.dmp

                memory/3468-26-0x0000025CDC180000-0x0000025CDC190000-memory.dmp

                memory/4568-32-0x0000026AD28C0000-0x0000026AD28D0000-memory.dmp

                memory/4568-34-0x0000026AD28C0000-0x0000026AD28D0000-memory.dmp

                memory/4568-24-0x0000026AD2960000-0x0000026AD2972000-memory.dmp

                memory/4568-23-0x0000026AD28C0000-0x0000026AD28D0000-memory.dmp

                memory/4568-21-0x0000026AD28C0000-0x0000026AD28D0000-memory.dmp

                memory/4568-19-0x0000026AEE260000-0x0000026AEE452000-memory.dmp

                memory/4568-18-0x0000026AD28C0000-0x0000026AD28D0000-memory.dmp

                memory/4568-30-0x0000026AED510000-0x0000026AED560000-memory.dmp

                memory/4568-31-0x0000026AD28C0000-0x0000026AD28D0000-memory.dmp

                memory/4568-17-0x0000026AED600000-0x0000026AED7F2000-memory.dmp

                memory/4568-33-0x0000026AD28C0000-0x0000026AD28D0000-memory.dmp

                memory/4568-15-0x0000026AD28C0000-0x0000026AD28D0000-memory.dmp

                memory/4568-35-0x0000026AD28C0000-0x0000026AD28D0000-memory.dmp

                memory/4568-36-0x0000026AD28C0000-0x0000026AD28D0000-memory.dmp

                memory/4568-16-0x0000026AEDB30000-0x0000026AEE058000-memory.dmp

                memory/4568-20-0x0000026AD28C0000-0x0000026AD28D0000-memory.dmp

                memory/4568-10-0x0000026AD0A10000-0x0000026AD0B24000-memory.dmp

                memory/4568-11-0x0000026AD28C0000-0x0000026AD28D0000-memory.dmp

                memory/4568-12-0x0000026AD10D0000-0x0000026AD10D1000-memory.dmp

                memory/4568-13-0x0000026AEC850000-0x0000026AECA12000-memory.dmp

                memory/4568-14-0x0000026AEC680000-0x0000026AEC6F6000-memory.dmp

                memory/4776-37-0x0000010BFBD40000-0x0000010BFBD62000-memory.dmp

                memory/4776-56-0x0000010BFC220000-0x0000010BFC228000-memory.dmp

                memory/4776-57-0x0000010BFC4A0000-0x0000010BFC4A6000-memory.dmp

                memory/4776-58-0x0000010BFC4B0000-0x0000010BFC4BA000-memory.dmp

                memory/4776-55-0x0000010BFC4C0000-0x0000010BFC4DA000-memory.dmp

                memory/4776-54-0x0000010BFC210000-0x0000010BFC21A000-memory.dmp

                memory/4776-53-0x0000010BFC480000-0x0000010BFC49C000-memory.dmp

                memory/4776-52-0x0000010BFBF30000-0x0000010BFBF3A000-memory.dmp

                memory/4776-51-0x0000010BFC150000-0x0000010BFC203000-memory.dmp

                memory/4776-50-0x0000010BFBF10000-0x0000010BFBF2C000-memory.dmp