8435f7dd73c4752b1dbcc7acd995332255320db51a3d05eab240c93be2fa8964
The file is the module exactly as the page had it. WebAssembly does nothing on its own: it runs only when a script instantiates it. Labels describe what the module contains and are leads, not verdicts.
At a glance
- What it is
- Known library: Ruffle Flash emulator.
- How it was built
- Written in Rust. wasm-bindgen connects it to the page's JavaScript.
- What it can do
- Its imports reach: page content, cryptography, network request, storage, page address. Judged from the names of its imports.
- Where we saw it
- On 1 public scan, 2026-10-09.
- Findings
- Dense data, Hashing or cipher loops. Leads, not verdicts: legitimate modules show these too.
- Size
- 5.6 MiB
- First seen
- 2026-10-09
- Last seen
- 2026-10-09
- Public scans
- 1
- Functions
- 4897
- Imports
- 304
- Exports
- 24
- Data segments
- 2574
Analysis limits
Only its first 2,000 strings were read.
How it was built
Written in Rust. wasm-bindgen connects it to the page's JavaScript.
- Language
- RustThe Rust compiler (rustc) left its name in the module.
- Connects to JavaScript
- wasm-bindgenRust's bridge to JavaScript. It writes glue code on both sides, so the module can call page functions such as fetch or the DOM, and the page can call the module.
Read from text inside the module (its build metadata and paths the compiler left) and from its import and export names. Whoever builds a module can change or remove these, so treat them as hints. They say how a module was made, not what it does.
What it is made of
49 Rust crates from crates.io, with the versions it was built with:
- adler32 1.2.0
- base64 0.13.0
- bitstream-io 1.2.0
- chrono 0.4.19
- deflate 0.9.1
- encoding_rs 0.8.28
- flate2 1.0.21
- form_urlencoded 1.0.1
- gc-arena git 4931b3b
- generational-arena 0.2.8
- gif 0.11.2
- h263-rs git ce3d3c7
Build tools and versions it names:
- Rust
- rustc 1.54.0 (a178d0322 2021-07-26)
- walrus 0.19.0
- wasm-bindgen 0.2.76
Read from text the build left in the module: source paths, build metadata and .NET metadata. Whoever builds a module can change or remove it, so treat it as a hint.
Hashing and cipher code
Algorithms recognised from their published constants, tables and rotation amounts: CRC-32. Legitimate modules use them all the time, for hashing, captchas and encryption, so this is a lead, not a verdict.
Decompiled code
4,890 of 4,897 functions decompiled to C-like pseudocode; 304 more are imported from the page.
- 7 of 4,897 functions could not be decompiled.
Decompiled code is a reconstruction from the file, so names and types are often guesses. Query values in URLs are masked here; the downloaded file is unchanged.
| Function | Size | Blocks | Complexity | Notes |
|---|---|---|---|---|
| No functions match. | ||||
File layout
WebAssembly binary format version 1, core module, 12 sections (2 custom).
| Section | Offset | Size | Items |
|---|---|---|---|
| type | 0x8 | 776 bytes | 99 |
| import | 0x310 | 11.9 KiB | 304 |
| function | 0x32ad | 4.8 KiB | 4,897 |
| table | 0x45d3 | 9 bytes | 1 |
| memory | 0x45dc | 5 bytes | 1 |
| global | 0x45e1 | 11 bytes | 1 |
| export | 0x45ec | 964 bytes | 24 |
| element | 0x49b0 | 6.3 KiB | 5 |
| code | 0x62c0 | 4.4 MiB | 4,897 |
| data | 0x473d90 | 709.0 KiB | 2,574 |
| custom: name | 0x5251b7 | 419.6 KiB | |
| custom: producers | 0x58e010 | 113 bytes |
- Memory
- 28 pages (1.8 MiB), no upper limit
- Table
- 3,202 entries, up to 3,202 entries, funcref
- Globals
- 1
- Element segments
- 5
- Function names
- 5,201 functions keep their names
Data segments
Each bar is one segment of the module's data: as wide as its size, as tall as its entropy. Bars above the dashed line are encrypted or compressed. 2,574 segments, 688.7 KiB in all. The chart shows 68: the first 64 and every encrypted or compressed one.
- Segment 1108: 2,705 bytes at 7.74 bits per byte
- Segment 1163: 8,420 bytes at 7.8 bits per byte
- Segment 1164: 11,437 bytes at 7.63 bits per byte
- Segment 1165: 97,049 bytes at 7.8 bits per byte
Imports (304)
Can reach: dom, crypto, network, storage, navigation.
Imports from wbg are wasm-bindgen glue. Each __wbg_… import calls one JavaScript function in the page, and its name says which (__wbg_fetch_… calls fetch). The __wbindgen_… imports are wasm-bindgen's own helpers for strings, errors and memory.
- wbg.__wbindgen_object_drop_ref
- wbg.__wbindgen_cb_drop
- wbg.__wbindgen_string_new
- wbg.__wbindgen_is_function
- wbg.__wbindgen_json_parse
- wbg.__wbindgen_json_serialize
- wbg.__wbindgen_object_clone_ref
- wbg.__wbg_isFullscreen_96b85640554e160d
- wbg.__wbg_displayUnsupportedMessage_a8f81a8e054e5e91
- wbg.__wbg_displayRootMovieDownloadFailedMessage_1a5c34096259685a
- wbg.__wbg_displayMessage_c57c20204892da2b
- wbg.__wbg_new_df6e6ab7a65c4c4d
- wbg.__wbg_panic_bbc809dd04a12c60
- wbg.__wbg_copyToAudioBuffer_58f244be94bac1d2
- wbg.__wbg_setMetadata_bbaeaee7f48274e6
- wbg.__wbg_onCallbackAvailable_3a48fae397926c96
- wbg.__wbg_onFSCommand_fb2f94653f71796e
- wbg.__wbindgen_number_new
- wbg.__wbg_new_59cb74e423758ede
- wbg.__wbg_stack_558ba5917b466edd
- wbg.__wbg_error_4bb6c2a97407129a
- wbg.__wbindgen_is_undefined
- wbg.__wbg_instanceof_WebGl2RenderingContext_61a66a1af6516586
- wbg.__wbg_bindVertexArray_808c39d3c0f17264
- wbg.__wbg_blitFramebuffer_3b625df19331f21c
- wbg.__wbg_createVertexArray_855d59250230c563
- wbg.__wbg_renderbufferStorageMultisample_bbeb2b87cb14307f
- wbg.__wbg_texImage2D_173d216c50e54701
- wbg.__wbg_bindFramebuffer_ce3cfcfec4aa02cc
- wbg.__wbg_bindRenderbuffer_35f3639b7da4e4c7
- wbg.__wbg_bindTexture_f2a0487a487a78d9
- wbg.__wbg_createFramebuffer_7fd863d54241be81
- wbg.__wbg_createRenderbuffer_52ebc0325ed6e885
- wbg.__wbg_createTexture_a46f881a1c96b496
- wbg.__wbg_deleteFramebuffer_867aba8474910f62
- wbg.__wbg_deleteRenderbuffer_eb162fd0beb632da
- wbg.__wbg_deleteTexture_1affe310edd12b75
- wbg.__wbg_framebufferRenderbuffer_7bb033ee5a2eca8c
- wbg.__wbg_framebufferTexture2D_9a77a023fd4aedcc
- wbg.__wbg_getError_142acae679908a25
- wbg.__wbg_getParameter_34e9af6606eb8544
- wbg.__wbg_texParameteri_e99b48aa90ae569b
- wbg.__wbg_instanceof_Window_9c4fd26090e1d029
- wbg.__wbg_document_249e9cf340780f93
- wbg.__wbg_location_cf542a8f458da7b4
- wbg.__wbg_navigator_fdf3521d0e190a9b
- wbg.__wbg_devicePixelRatio_ea9c0157a379b3ec
- wbg.__wbg_performance_e029cf47e1c47c09
- wbg.__wbg_localStorage_884d77b5cedf820a
- wbg.__wbg_cancelAnimationFrame_28c6665c9b2a3944
Exports (24)
- memory
- __wbg_ruffle_free
- ruffle_new
- ruffle_stream_from
- ruffle_load_data
- ruffle_play
- ruffle_pause
- ruffle_is_playing
- ruffle_prepare_context_menu
- ruffle_run_context_menu_callback
- ruffle_clear_custom_menu_items
- ruffle_destroy
- ruffle_call_exposed_callback
- ruffle_set_trace_observer
- ruffle_audio_context
- __wbindgen_malloc
- __wbindgen_realloc
- __wbindgen_export_2
- _dyn_core__ops__function__FnMut_____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h84aeeeeef7776a08
- _dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h23aa2bf30b8b9cdf
- _dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h68b263c11a10a530
- _dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__hccdc9c4a058e9d23
- __wbindgen_exn_store
- __wbindgen_free
Scripts that carry or load it
- victorwallander.se loads it; the script is minified or bundled.
From public scans. A script loads a module when it fetches or compiles it.
Text it passes to the page
Fixed text the module hands to the page's JavaScript when it calls an import, read from the module file. Imports that reach the network, run code or change the page come first; web addresses are shown as their host.
| Import | Text |
|---|---|
| wbg.__wbg_createElementNS_c951238dc260501epage content | www.w3.org |
| wbg.__wbg_querySelector_6c8f27227fc14315page content | #_svgfilter |
| wbg.__wbg_setAttributeNS_d31649e78e2cf95cpage content | www.w3.org |
| wbg.__wbg_setAttributeNS_d31649e78e2cf95cpage content | xmlns:xlink |
| wbg.__wbg_setAttributeNS_d31649e78e2cf95cpage content | www.w3.org |
| wbg.__wbg_modulerequire_3440a4bcf44437db | crypto |
| wbg.__wbg_newnoargs_1a11e7e8c906996c | return this |
| wbg.__wbg_setid_16518c90432c2f8e | _svgfilter |
| wbg.__wbindgen_string_new | method |
| wbg.__wbindgen_string_new | type |
| wbg.__wbindgen_string_new | body |
| wbg.__wbindgen_string_new | performance |
| wbg.__wbindgen_string_new | stencil |
| wbg.__wbindgen_string_new | antialias |
| wbg.__wbindgen_string_new | orientation |
| wbg.__wbindgen_string_new | alpha |
| wbg.__wbindgen_string_new | passive |
| wbg.__wbindgen_string_new | Error creating player |
| wbg.__wbindgen_string_new | Ruffle is panicking! |
In our sandbox
- Produced 26 strings at run time, listed below.
Strings it produced at run time
Text that appeared while it ran and is not in the file: decoded, decrypted or built by its code. Web addresses are shown as their host.
- attempt to divide with overflowassertion failed: mid <= self.len()/rustc/a178d0…f633/library/core/src/slice/mod.rs
- `async fn` resumed after completionPOSTGET
- cloneequalsaddnormalizeoffset
- /home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/smallvec-1.6.1/src/lib.rs
- redMultipliergreenMultiplierblueMultiplieralphaMultiplierredOffsetgreenOffsetblueOffsetalphaOffsetrgbconcat
- getBeginIndexgetEndIndexgetCaretIndexsetSelectionsetFocusgetFocus
- core/src/avm1/globals/stage.rs
- Invalid DefineShape version.PlaceObject version 1 can only use a Place action.
- ragabaaarbgbbbabcaptiononSelectseparatorBeforeenabledvisibleseparator_beforecopy
- xywrapcomponentXcomponentYmapBitmapmapPointmodescaleXscaleY
- messageErrornametoString
- onSelectprintforward_backrewindloopplayqualityzoomsavebuiltInItemscustomItemscopyhideBuiltInItems
- [Anonymous]prototype
- alphablurXblurYcolorinnerknockoutqualitystrength
- distanceanglecolorsalphasratiostype
- littleEndianbigEndianParameter type must be one of the accepted values.UTF-8zlibflash.utilsByteArray<ByteArray instance
- enableduseHandCursor
- Unable to decompress LZMA SWF.
- Invalid SWFalready borrowedassertion failed: mid <= self.len()/rustc/a178d0…f633/library/core/src/slice/mod.rs
- core/src/avm1/object/color_transform_object.rs
- ALTBACKSPACECAPSLOCKCONTROLDELETEKEYDOWNENDENTERESCAPEHOMEINSERTLEFTPGDNPGUPRIGHTSHIFTSPACETABUPisDowngetAsciigetCode
- ,toLocaleStringlengthcore/src/avm2/globals/array.rs
- attempt to divide by zeroborrow underflow during sub_assign
- macintosh
- l1l2l3…i_x3.4-1968…59-1:1987iso_8859-2:1987iso_8859-6:1987iso_8859-7:1987iso_8859-3:1988iso_8859-4:1988iso_8859-5:1988is
- Layoutsize_align_
Checks we ran
- Threat-feed matches: none
- Names of mining software or pools: none
- CryptoNight mining structure: not found
- Hashing or cipher loops: 1 function (common in codecs and captchas)
- Known hashing or cipher algorithms: CRC-32
- Encrypted or compressed data: 4 blocks, 116.8 KiB (17.0% of its data)
- JavaScript stored inside: none
- Other modules inside: none
- Imports that read browser or page details: 9
- Function names: kept
Static checks of the file: nothing in it was run for these. A finding is a lead, not a verdict.
Seen on 1 public scan
| Page | Title | Seen | How it got there |
|---|---|---|---|
| victorwallander.se | Victor Wallander | 2026-10-09 | Downloaded as a file |