Overview

overview

7

Static

static

5

libiconv-2.dll

windows10-2004-x64

1

libiconv-2.dll

windows11-ltsc_2024-x64

1

libidn2-0.dll

windows10-2004-x64

1

libidn2-0.dll

windows11-ltsc_2024-x64

1

libintl-8.dll

windows10-2004-x64

1

libintl-8.dll

windows11-ltsc_2024-x64

1

libpsl-5.dll

windows10-2004-x64

7

libpsl-5.dll

windows11-ltsc_2024-x64

7

libunistring-5.dll

windows10-2004-x64

1

libunistring-5.dll

windows11-ltsc_2024-x64

1

psl.exe

windows10-2004-x64

6

psl.exe

windows11-ltsc_2024-x64

6

Analysis

  • max time kernel
    122s
  • max time network
    158s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/06/2026, 12:19

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General

  • Target
    psl.exe
  • Size 64KB
  • Sample260629-pg6dmac16v
  • SHA256 68e81ce966ca0c016bb638d0d29b106a0da7eab2ddf70438d8182fa89baf5d78
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
adwarepersistenceransomwarespyware

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 32 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 39 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 2 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.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\psl.exe
    "C:\Users\Admin\AppData\Local\Temp\psl.exe"
    1⤵
    • Adds Run key to start application
    PID:5428
  • C:\Windows\Temp\DCRCVDrv.sys
    C:\Windows\Temp\DCRCVDrv.sys
    1⤵
    • Executes dropped EXE
    PID:5612
  • C:\Windows\system32\cmd.exe
    "cmd /c start "" /D "C:\ProgramData\pslupdservicewind" psl.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4924
    • C:\ProgramData\pslupdservicewind\psl.exe
      "C:\ProgramData\pslupdservicewind\psl.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4704
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
        3⤵
          PID:4480
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3988
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:716
    • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
      "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:5544
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4420

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          libiconv-2.dll
          • Path C:\ProgramData\pslupdservicewind\libiconv-2.dll
          • Size 1.1MB
          • SHA256 2e5883a09cfc4391cb81db3f0da4d9b8cda21fc1b287e73a1624ad518d941b94
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          libidn2-0.dll
          • Path C:\ProgramData\pslupdservicewind\libidn2-0.dll
          • Size 251KB
          • SHA256 3ebaf0f048ad557c789c7602bbf0ff878b4e1c84b27fac559ad72c72259bd90e
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          libintl-8.dll
          • Path C:\ProgramData\pslupdservicewind\libintl-8.dll
          • Size 301KB
          • SHA256 a62094d6e21670f460cb110389d2cb7b9bc12cfbb075151eeb2c52436cc02755
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          libpsl-5.dll
          • Path C:\ProgramData\pslupdservicewind\libpsl-5.dll
          • Size 2.4MB
          • SHA256 c9ff9a1c70d0326468eebfb6c6edfe5dc7350a9e79c3c3e14d7f93b0893c3565
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          libunistring-5.dll
          • Path C:\ProgramData\pslupdservicewind\libunistring-5.dll
          • Size 2.1MB
          • SHA256 35eae7305e2e108ec3eac677f3357e376247e77e32aaecbf818b2c68f134d91c
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          psl.exe
          • Path C:\ProgramData\pslupdservicewind\psl.exe
          • Size 64KB
          • SHA256 68e81ce966ca0c016bb638d0d29b106a0da7eab2ddf70438d8182fa89baf5d78
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          prep_Activatable Class_Hermes_perf.cache
          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
          • Size 599B
          • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          DCRCVDrv.sys
          • Path C:\Windows\Temp\DCRCVDrv.sys
          • Size 137KB
          • SHA256 87e8d39db624f37d3e77aedf487a2dfd197f71a4730ea74f4e7a4341deaec2ff
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/4704-20-0x00007FF78A720000-0x00007FF78A735000-memory.dmp
          Download

          memory/5428-9-0x00007FF6CC230000-0x00007FF6CC245000-memory.dmp
          Download

          memory/5544-22-0x00000288801E0000-0x00000288802E0000-memory.dmp
          Download

          memory/5544-55-0x0000028885040000-0x0000028885060000-memory.dmp
          Download

          memory/5544-48-0x0000028883EA0000-0x0000028883EC0000-memory.dmp
          Download

          memory/5544-49-0x00000288950C0000-0x00000288951C0000-memory.dmp
          Download

          memory/5544-87-0x00000288954E0000-0x0000028895500000-memory.dmp
          Download

          memory/5544-214-0x0000028880430000-0x0000028880613000-memory.dmp
          Download

          memory/5612-2-0x0000000000010000-0x000000000003D000-memory.dmp
          Download