Overview

overview

8

Static

static

3

treesize-9...er.exe

windows10-2004-x64

8

treesize-9...er.exe

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    148s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 12:44

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General

  • Target
    treesize-9.8.1-installer.exe
  • Size 2.0MB
  • Sample260707-pym9dae18p
  • SHA256 4576963c7f326fc89b0fa2f4d67be61b7be00b9cb4870268b15155a38464eae4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarediscoveryinstallerpersistencespyware

Malware Config

Signatures

  • 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
  • Executes dropped EXE 1 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

    discovery
  • Inno Setup is an open-source installation builder for Windows applications. 2 IoCs

    Inno Setup installer

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

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 34 IoCs
  • Suspicious use of FindShellTrayWindow 55 IoCs
  • Suspicious use of SendNotifyMessage 45 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\treesize-9.8.1-installer.exe
    "C:\Users\Admin\AppData\Local\Temp\treesize-9.8.1-installer.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4536
    • C:\Users\Admin\AppData\Local\Temp\is-UCHIMMKUT0.tmp\treesize-9.8.1-installer.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-UCHIMMKUT0.tmp\treesize-9.8.1-installer.tmp" /SL5="$60042,847735,840192,C:\Users\Admin\AppData\Local\Temp\treesize-9.8.1-installer.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      PID:4184
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1044
    • 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:1352
  • 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:444
  • 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:1804

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        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

        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 595B
        • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        100.png
        • Path C:\Users\Admin\AppData\Local\Temp\is-DPDCZY2SR0.tmp\100.png
        • Size 46KB
        • SHA256 a6ecce54116936ca27d4be9797e32bf2f3cfc7e41519a23032992970fbd9d3ba
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        101.png
        • Path C:\Users\Admin\AppData\Local\Temp\is-DPDCZY2SR0.tmp\101.png
        • Size 51KB
        • SHA256 3f63f320e919830fb21fff8dbd82509ecc8330c89513163daedb1b7687a0a529
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        image.png
        • Path C:\Users\Admin\AppData\Local\Temp\is-DPDCZY2SR0.tmp\image.png
        • Size 84KB
        • SHA256 eb957eec537ca01fb76716196c5130ed462b7658827396054e55d417fe9e2411
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        treesize-9.8.1-installer.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\is-UCHIMMKUT0.tmp\treesize-9.8.1-installer.tmp
        • Size 4.1MB
        • SHA256 ad44ccbfc69fda66fef3c812fe4aab5eafaf8bd654f8b707081c30233677544a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/444-53-0x000001AA801E0000-0x000001AA802E0000-memory.dmp
        Download

        memory/444-108-0x000001AA94900000-0x000001AA94920000-memory.dmp
        Download

        memory/444-74-0x000001AA83C20000-0x000001AA83C40000-memory.dmp
        Download

        memory/444-94-0x000001AA83E80000-0x000001AA83EA0000-memory.dmp
        Download

        memory/444-52-0x000001AA801E0000-0x000001AA802E0000-memory.dmp
        Download

        memory/444-75-0x000001AA94080000-0x000001AA94180000-memory.dmp
        Download

        memory/444-54-0x000001AA801E0000-0x000001AA802E0000-memory.dmp
        Download

        memory/444-232-0x000001AA80440000-0x000001AA80623000-memory.dmp
        Download

        memory/4184-23-0x0000000006AF0000-0x0000000006C30000-memory.dmp
        Download

        memory/4184-29-0x0000000006AF0000-0x0000000006C30000-memory.dmp
        Download

        memory/4184-37-0x0000000006AF0000-0x0000000006C30000-memory.dmp
        Download

        memory/4184-38-0x0000000006AF0000-0x0000000006C30000-memory.dmp
        Download

        memory/4184-40-0x0000000000E20000-0x0000000001256000-memory.dmp
        Download

        memory/4184-41-0x0000000006AF0000-0x0000000006C30000-memory.dmp
        Download

        memory/4184-43-0x0000000000E20000-0x0000000001256000-memory.dmp
        Download

        memory/4184-31-0x0000000000E20000-0x0000000001256000-memory.dmp
        Download

        memory/4184-32-0x0000000006AF0000-0x0000000006C30000-memory.dmp
        Download

        memory/4184-36-0x0000000006AF0000-0x0000000006C30000-memory.dmp
        Download

        memory/4184-28-0x0000000006AF0000-0x0000000006C30000-memory.dmp
        Download

        memory/4184-6-0x0000000001F00000-0x0000000001F01000-memory.dmp
        Download

        memory/4184-22-0x0000000006AF0000-0x0000000006C30000-memory.dmp
        Download

        memory/4184-14-0x0000000001F00000-0x0000000001F01000-memory.dmp
        Download

        memory/4184-231-0x0000000000E20000-0x0000000001256000-memory.dmp
        Download

        memory/4184-13-0x0000000000E20000-0x0000000001256000-memory.dmp
        Download

        memory/4536-12-0x0000000000490000-0x000000000056C000-memory.dmp
        Download

        memory/4536-0-0x0000000000490000-0x000000000056C000-memory.dmp
        Download