Overview

overview

8

Static

static

3

StarWasher.exe

windows10-2004-x64

7

StarWasher.exe

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    904s
  • max time network
    833s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 14:17

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General

  • Target
    StarWasher.exe
  • Size 455.5MB
  • Sample260930-rlwq4ahc97
  • SHA256 107b7618f1d687a7e3a7ba024a23aead40df6623c6bd0dd38b4bab3ad9ddf05b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarediscoverypersistenceransomwarespyware

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
  • Loads dropped DLL 64 IoCs
  • Enumerates connected drives 3 TTPs 4 IoCs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

    discovery
  • 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 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 43 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
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\StarWasher.exe
    "C:\Users\Admin\AppData\Local\Temp\StarWasher.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1576
    • C:\Users\Admin\AppData\Local\Temp\StarWasher.exe
      "C:\Users\Admin\AppData\Local\Temp\StarWasher.exe"
      2⤵
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      PID:3172
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x0000000000000504 0x00000000000004EC
    1⤵
      PID:3844
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:960
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:4268
        • 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:4592
      • 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:5088
      • 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:4376
      • C:\Windows\System32\SecurityHealthHost.exe
        \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
        1⤵
          PID:5096

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              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 607B
              • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              VCRUNTIME140.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\VCRUNTIME140.dll
              • Size 117KB
              • SHA256 052ad6a20d375957e82aa6a3c441ea548d89be0981516ca7eb306e063d5027f4
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _bz2.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\_bz2.pyd
              • Size 84KB
              • SHA256 65f610646d10d5babea080e060d244b546ec52c54012e5e937dc72dcc2e2e7bc
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _ctypes.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\_ctypes.pyd
              • Size 124KB
              • SHA256 0e56107a891100535f2da79d85a5ae65ff1227b4765bd108f8593ac1a1110d81
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _hashlib.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\_hashlib.pyd
              • Size 67KB
              • SHA256 03d233dbace599168eaffec823de6ed7beec8c2a4ebfe9b8a3d8e042a59af3ba
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _lzma.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\_lzma.pyd
              • Size 157KB
              • SHA256 e3deecc1f59a3b811c608861decd84de1e8df8bafd5e2b39188861318c5a38cf
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _queue.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\_queue.pyd
              • Size 32KB
              • SHA256 48e76e0ad63f6932b4a77b5819f41c1e7595636ca8d9e824f0943a14b8bb5035
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _socket.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\_socket.pyd
              • Size 83KB
              • SHA256 3efa4636cf9e350856f6927d67a4c2564bf9bd2758a00bbf17d3aece5b60016d
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _ssl.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\_ssl.pyd
              • Size 175KB
              • SHA256 0bc527d2dbc50009f43b2ed5d5982c4f63f4b647647ffa9eda612dcda80f6040
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              cp1252.enc
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\_tcl_data\encoding\cp1252.enc
              • Size 1KB
              • SHA256 741859cf238c3a63bbb20ec6ed51e46451372bb221cfff438297d261d0561c2e
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              _tkinter.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\_tkinter.pyd
              • Size 66KB
              • SHA256 ed2f7b2c9984032cfb046923b45bb745f6e819730c086e559777665b45e8390e
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _wmi.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\_wmi.pyd
              • Size 39KB
              • SHA256 a980f1e7a29842bd946863fc2693fbeb555a9dc0f9e1630dfed9a2fcdef3ece2
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              base_library.zip
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\base_library.zip
              • Size 1.3MB
              • SHA256 2f1749fa2b2e493083996f406ae4f852d9780a57e8b3156ddb456193cb01cc19
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              libcrypto-3.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\libcrypto-3.dll
              • Size 5.0MB
              • SHA256 ccfffddcd3defb8d899026298af9af43bc186130f8483d77e97c93233d5f27d7
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              libffi-8.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\libffi-8.dll
              • Size 38KB
              • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              libssl-3.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\libssl-3.dll
              • Size 776KB
              • SHA256 007142039f04d04e0ed607bda53de095e5bc6a8a10d26ecedde94ea7d2d7eefe
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              libopenblas64__v0.3.23-293-gc2f4bdbb-gcc_10_3_0-2bde3a66a51006b2b53eb373ff767a3f.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\numpy.libs\libopenblas64__v0.3.23-293-gc2f4bdbb-gcc_10_3_0-2bde3a66a51006b2b53eb373ff767a3f.dll
              • Size 36.4MB
              • SHA256 57b87772bf676b5c2d718c79dddc9f039d79ec3319fee1398cc305adff7b69e5
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _multiarray_tests.cp312-win_amd64.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\numpy\core\_multiarray_tests.cp312-win_amd64.pyd
              • Size 64KB
              • SHA256 d9017d99e0b6cad2f02462420793551fe9e6b836f3a800228caaeed144a32b75
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _multiarray_umath.cp312-win_amd64.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\numpy\core\_multiarray_umath.cp312-win_amd64.pyd
              • Size 2.7MB
              • SHA256 5d4f44389d1b4e9aa62af63b716a0d4266dbb56fefa9bf27831f85b695994da5
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _pocketfft_internal.cp312-win_amd64.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\numpy\fft\_pocketfft_internal.cp312-win_amd64.pyd
              • Size 107KB
              • SHA256 f0a4df58721cb85ca35f5f3b8c47538c53d57bbcca4fc5c07a6c06ac4c5ef421
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _umath_linalg.cp312-win_amd64.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\numpy\linalg\_umath_linalg.cp312-win_amd64.pyd
              • Size 104KB
              • SHA256 7652e82c6c53249b911dde9822b71a7ecbecbc699c79475862e779a51d7f1d0f
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _bounded_integers.cp312-win_amd64.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\numpy\random\_bounded_integers.cp312-win_amd64.pyd
              • Size 226KB
              • SHA256 0c19ec0b3129f12df51982aace8478f8274a5b0d6a2206be1d0e1ee0227c36a4
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _common.cp312-win_amd64.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\numpy\random\_common.cp312-win_amd64.pyd
              • Size 162KB
              • SHA256 774bf3e20e2b1ca9797deb1daccb88a776a70c8555a501454d8d900a14585134
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _mt19937.cp312-win_amd64.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\numpy\random\_mt19937.cp312-win_amd64.pyd
              • Size 74KB
              • SHA256 592238b7a62fb033724cfd745be6036700f584d6c4ee8baf83cb77788320aa49
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              bit_generator.cp312-win_amd64.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\numpy\random\bit_generator.cp312-win_amd64.pyd
              • Size 157KB
              • SHA256 d335d1443e324a7a89582cc3e85bd850198eb3133c3dd38c7f55c6f609b0cfd8
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              mtrand.cp312-win_amd64.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\numpy\random\mtrand.cp312-win_amd64.pyd
              • Size 569KB
              • SHA256 2df309f3cc66116966484fcc466cef200aff8d2a4c8ea482d3530b5cccb89394
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              python3.DLL
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\python3.DLL
              • Size 68KB
              • SHA256 fb975a606e7fbf74f64260e3f60c3490b4f74a183c0926fd6ed1ac4c52ac7b1c
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              python312.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\python312.dll
              • Size 6.6MB
              • SHA256 9a0e3435aaa680d868150f87ab3e388ad2eebc22f87e036155c7b4eda8cd2120
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              select.pyd
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\select.pyd
              • Size 32KB
              • SHA256 d4d7181b11db0bd22a6cd5cda6f8583d1f5c77615fd0a6ca33350619d6e0438a
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              Lorem ipsum.txt
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\setuptools\_vendor\jaraco\text\Lorem ipsum.txt
              • Size 1KB
              • SHA256 37fedcffbf73c4eb9f058f47677cb33203a436ff9390e4d38a8e01c9dad28e0b
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              tcl86t.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\tcl86t.dll
              • Size 1.8MB
              • SHA256 b894e0c9a7d2b56f9f202de5044221cfc0938cbd9ffaca6b6793bba486e28081
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              tk86t.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\tk86t.dll
              • Size 1.5MB
              • SHA256 3883976d6270c44cf43b0f4e3b925259a36c42f586680a93dfe6a3fdfb5b4939
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              vcruntime140_1.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\vcruntime140_1.dll
              • Size 48KB
              • SHA256 6a99bc0128e0c7d6cbbf615fcc26909565e17d4ca3451b97f8987f9c6acbc6c8
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              zlib1.dll
              • Path C:\Users\Admin\AppData\Local\Temp\_MEI000006282\zlib1.dll
              • Size 144KB
              • SHA256 a3a9487dd7a27be0296731513a5c1d9005bd3acf5861ccbe0aabca3984f51c4f
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              memory/3172-1599-0x00007FFDB9410000-0x00007FFDBB4C6000-memory.dmp
              Download

              memory/3172-1598-0x00007FFDC7D90000-0x00007FFDC7DB9000-memory.dmp
              Download

              memory/4592-1864-0x000000000E640000-0x000000000E682000-memory.dmp
              Download

              memory/4592-1865-0x000000000FC30000-0x000000000FCAC000-memory.dmp
              Download

              memory/5088-1693-0x000001EB4CC20000-0x000001EB4CD20000-memory.dmp
              Download

              memory/5088-1742-0x000001EB13C40000-0x000001EB13C60000-memory.dmp
              Download

              memory/5088-1728-0x000001EB03790000-0x000001EB037B0000-memory.dmp
              Download

              memory/5088-1712-0x000001EB03630000-0x000001EB03650000-memory.dmp
              Download

              memory/5088-1713-0x000001EB13830000-0x000001EB13930000-memory.dmp
              Download