Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    115s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/10/2026, 21:40

General

  • Target
    builder.exe
  • Size 13.3MB
  • Sample261022-1jdl6sas5m
  • SHA256 0a7e8409ff2d2440e43cf49913a5d8e21a81cbde5bc18f731aef24e810e5b79a
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 13 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Executes a command shell one-liner 1 TTPs 4 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\builder.exe
    "C:\Users\Admin\AppData\Local\Temp\builder.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3368
    • C:\Users\Admin\AppData\Local\Temp\builder.exe
      "C:\Users\Admin\AppData\Local\Temp\builder.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:5780
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c cls
        3⤵
        • Executes a command shell one-liner
        PID:5332
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c cls
        3⤵
        • Executes a command shell one-liner
        PID:3152
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c cls
        3⤵
        • Executes a command shell one-liner
        PID:1932
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c cls
        3⤵
        • Executes a command shell one-liner
        PID:4532
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3488
    • C:\Windows\system32\SearchIndexer.exe
      C:\Windows\system32\SearchIndexer.exe /Embedding
      1⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4828
      • C:\Windows\System32\SearchProtocolHost.exe
        "C:\Windows\System32\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe1_ Global\UsGthrCtrlFltPipeMssGthrPipe1 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "C:\ProgramData\Microsoft\Search\Data\Temp\usgthrsvc" "DownLevelDaemon"
        2⤵
        • Modifies data under HKEY_USERS
        PID:948
      • C:\Windows\System32\SearchProtocolHost.exe
        "C:\Windows\System32\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe_S-1-5-21-4154726816-2055034831-2297277433-10002_ Global\UsGthrCtrlFltPipeMssGthrPipe_S-1-5-21-4154726816-2055034831-2297277433-10002 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "C:\ProgramData\Microsoft\Search\Data\Temp\usgthrsvc" "DownLevelDaemon" "1"
        2⤵
          PID:1212
        • C:\Windows\System32\SearchFilterHost.exe
          "C:\Windows\System32\SearchFilterHost.exe" 836 2800 2796 820 {7FC3863B-7471-4B10-84E3-A5C2E0330618}
          2⤵
          • Modifies data under HKEY_USERS
          PID:4168
        • C:\Windows\System32\SearchFilterHost.exe
          "C:\Windows\System32\SearchFilterHost.exe" 836 2816 2824 820 {06DC0F6A-A3E7-4365-A8E8-F674FE2E6361}
          2⤵
          • Modifies data under HKEY_USERS
          PID:1268

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            VCRUNTIME140.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\VCRUNTIME140.dll
            • Size 121KB
            • SHA256 d5e4d9a3e835fa679450145d6a7d94e36573a509317111904d9b3712c30d9066
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _bz2.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\_bz2.pyd
            • Size 71KB
            • SHA256 c46b2979e25b66827d0361a559e12879b8a250cf5c8771a54db94e4808e00685
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _cffi_backend.cp311-win_amd64.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\_cffi_backend.cp311-win_amd64.pyd
            • Size 175KB
            • SHA256 0b5c05bf3e9da14c33566d2c546fb7618ac7fc2b89365a66cfb1082ffe3d898d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _decimal.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\_decimal.pyd
            • Size 237KB
            • SHA256 5566518542e3ee6dd8cbecbae76e40a30015e82cc04ee4ea768a3cc9fb53f4ce
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _hashlib.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\_hashlib.pyd
            • Size 52KB
            • SHA256 5f17438d0e3091e6006048c873ce43e7e33d842a2a736500815a56aa8be4bf01
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _lzma.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\_lzma.pyd
            • Size 149KB
            • SHA256 0369454200d4b8deb3959415aae9bb9926e681b14bcb4427e432381fe57ecb27
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _socket.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\_socket.pyd
            • Size 66KB
            • SHA256 9bc8b64506c21e94457da274573e85777a06b67d4d6b98dddeab4b97172fcef1
            • MD5 SHA1 SHA512 SSDEEP TLSH

            cp1252.enc

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\_tcl_data\encoding\cp1252.enc
            • Size 1KB
            • SHA256 741859cf238c3a63bbb20ec6ed51e46451372bb221cfff438297d261d0561c2e
            • MD5 SHA1 SHA512 TLSH

            _tkinter.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\_tkinter.pyd
            • Size 52KB
            • SHA256 2cc987f71fe6a28e8ca5fc1f14c26bd6efa59b36e91d52901c17a5e57c4f0b2d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            base_library.zip

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\base_library.zip
            • Size 1.4MB
            • SHA256 af948abcbb1e245535f7ff6fff46258b11ecf38b91fa5c2f31eeb50280114ca0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            _rust.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\cryptography\hazmat\bindings\_rust.pyd
            • Size 9.5MB
            • SHA256 6a42262974f0e086c1f2defaff4ccd9fb25046cf193422135e2dda5b4b29b2a2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            libcrypto-3-x64.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\libcrypto-3-x64.dll
            • Size 7.6MB
            • SHA256 4ef4f59ddc79f232a76e7eee7a7fd91792974ba885011b00acada8debfc14173
            • MD5 SHA1 SHA512 SSDEEP TLSH

            python3.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\python3.dll
            • Size 54KB
            • SHA256 8fda4948f6fc2bed1c7d1ece9596a3450c772775e48046c0bf701517d78ae9e3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            python311.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\python311.dll
            • Size 5.6MB
            • SHA256 06cb189016f6d5a593aba0e4c53ae972f2b7a257373c502e7da80f35f37dc1c0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            select.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\select.pyd
            • Size 18KB
            • SHA256 ab91970ff8458849e59711e323dc49f09bafe7a650ddcf797fd7242343ebc49d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            tcl86t.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\tcl86t.dll
            • Size 1.8MB
            • SHA256 59488f67a8e75a5d51c7cb865436b5581fbb16014e9233b34db0c22bea6d4765
            • MD5 SHA1 SHA512 SSDEEP TLSH

            tk86t.dll

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\tk86t.dll
            • Size 1.5MB
            • SHA256 e9a5815ad39619e22d581b7124bbaa4192e701229956a2edbaffc0c420864561
            • MD5 SHA1 SHA512 SSDEEP TLSH

            unicodedata.pyd

            • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000d282\unicodedata.pyd
            • Size 1.1MB
            • SHA256 aa489115a8139de6aa0db51e2c8771c78df430fd7c3c65b714f385833ccc91fe
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/948-982-0x0000028481810000-0x00000284818BE000-memory.dmp