e4f3c00246a775193661f9277ca1288cd310a6514de166ecc2176ccd26fb06a9
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: Cap proof-of-work captcha.
- Names it came with
- Came with the npm package @cap.js/wasm 0.0.7 (18 sites) · Came with the npm package @cap.js/wasm 0.0.8 (3 sites) · From cdn.jsdelivr.net (21 sites) · From captcha.service.elfsight.com · File name: cap-wasm (26 sites) · File name: cp-wasm. Its build and the addresses it came from say so; whoever builds a module chooses these, so they are hints.
- How it was built
- Written in Rust. wasm-bindgen connects it to the page's JavaScript.
- What it can do
- None of its imports reaches the network, runs code or changes the page. Judged from the names of its imports.
- Where we saw it
- On 28 public scans, 2026-10-03 to 2026-10-27.
- Findings
- Nothing flagged by the checks below.
- Size
- 22.1 KiB
- First seen
- 2026-10-03
- Last seen
- 2026-10-27
- Public scans
- 28
- Functions
- 20
- Imports
- 1
- Exports
- 6
- Data segments
- 2
How it was built
Written in Rust. wasm-bindgen connects it to the page's JavaScript.
- Language
- RustImplied: wasm-bindgen is only used with Rust.
- 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
1 Rust crate from crates.io, with the versions it was built with:
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: SHA-256. Legitimate modules use them all the time, for hashing, captchas and encryption, so this is a lead, not a verdict.
- solve_powSHA-256 · constants in its code, its rotation amounts
Decompiled code
20 of 20 functions decompiled to C-like pseudocode; 1 more is imported from the page.
Beyond WebAssembly 1.0: Vector (SIMD) instructions (2 functions).
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, 11 sections.
| Section | Offset | Size | Items |
|---|---|---|---|
| type | 0x8 | 55 bytes | 9 |
| import | 0x3f | 41 bytes | 1 |
| function | 0x68 | 23 bytes | 20 |
| table | 0x7f | 11 bytes | 2 |
| memory | 0x8a | 5 bytes | 1 |
| global | 0x8f | 11 bytes | 1 |
| export | 0x9a | 106 bytes | 6 |
| element | 0x104 | 15 bytes | 1 |
| datacount | 0x113 | 3 bytes | |
| code | 0x116 | 20.2 KiB | 20 |
| data | 0x5211 | 1.6 KiB | 2 |
- Memory
- 17 pages (1.1 MiB), no upper limit
- Table 0
- 8 entries, up to 8 entries, funcref
- Table 1
- 128 entries, no upper limit, externref
- Globals
- 1
- Element segments
- 1
- Declared data segments
- 2
- Function names
- none (names were stripped)
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 segments, 1.5 KiB in all.
Imports (1)
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_init_externref_table
Exports (6)
Scripts that carry or load it
- 17-app-argus.pages.dev loads it; the script is minified or bundled.
- q3-bananagun.cfd loads it; the script is minified or bundled.
- 226-stonkbroker-clutchmarkets.pages.dev loads it; the script is minified or bundled.
- 1-arguseco.pages.dev loads it; the script is minified or bundled.
- 15-cantonnetwork.pages.dev loads it; the script is minified or bundled.
- captcha.bitninja.io loads it; the script is minified or bundled.
- universe-static.elfsightcdn.com loads it; the script is minified or bundled.
- proposal-lighter.info loads it; the script is minified or bundled.
- www.studmed.ru loads it; the script is minified or bundled.
- proposal-fables.finance loads it; the script is minified or bundled.
From public scans. A script loads a module when it fetches or compiles it.
In our sandbox
- Nothing notable.
Checks we ran
- Threat-feed matches: none
- Names of mining software or pools: none
- CryptoNight mining structure: not found
- Hashing or cipher loops: none
- Known hashing or cipher algorithms: SHA-256
- Encrypted or compressed data: none
- JavaScript stored inside: none
- Other modules inside: none
- Imports that read browser or page details: none
- Function names: removed (usual in release builds)
Static checks of the file: nothing in it was run for these. A finding is a lead, not a verdict.
Seen on 28 public scans
| Page | Title | Seen | How it got there |
|---|---|---|---|
| q3-bananagun.cfd | Best Crypto Trading Platform | Telegram & WebApp | 2026-10-27 | Built by a script at run time; Downloaded as a file |
| 226-stonkbroker-clutchmarkets.pages.dev | StonkBrokers | 2026-10-25 | Downloaded as a file |
| proposal-lighter.info | Lighter | 2026-10-25 | Built by a script at run time; Downloaded as a file |
| proposal-fables.finance | Fables Governance — Vote on protocol proposals | 2026-10-25 | Built by a script at run time; Downloaded as a file |
| portal-orbio.digital | Orbio · AI credits at a discount | 2026-10-24 | Downloaded as a file |
| co-op.se | Shopify-byrå & e-handelsbyrå i Sverige | CO-OP Agency | 2026-10-21 | Built by a script at run time; Downloaded as a file |
| 1-proposal-saturncredit.pages.dev | Saturn: Digital Dollars on Digital Credit | 2026-10-20 | Built by a script at run time; Downloaded as a file |
| 17-app-argus.pages.dev | Argus | Governance | 2026-10-18 | Downloaded as a file |
| 3-zano.pages.dev | Zano: Everything Private. By Default. | 2026-10-17 | Built by a script at run time; Downloaded as a file |
| www.scentcompany.it | Scent Company: fragranze che disegnano l'Identità del tuo brand | 2026-10-17 | Downloaded as a file |
| 3-zano.pages.dev | Zano: Everything Private. By Default. | 2026-10-17 | Built by a script at run time; Downloaded as a file |
| 1-arguseco.pages.dev | Argus | Governance | 2026-10-17 | Downloaded as a file |
| 15-cantonnetwork.pages.dev | The Canton Network | 2026-10-15 | Downloaded as a file |
| godville.net | Годвилль — божественная комедия | 2026-10-15 | Downloaded as a file |
| 15-cantonnetwork.pages.dev | The Canton Network | 2026-10-14 | Built by a script at run time; Downloaded as a file |
| arguspad.pages.dev | Argus | Governance | 2026-10-14 | Downloaded as a file |
| bankofamericalivesupport.com | — | 2026-10-13 | Built by a script at run time; Downloaded as a file |
| www.ecolis.ru | "Эколис" | 2026-10-13 | Downloaded as a file |
| chicagoplaygrounds.com | Little Village · Chicago Playgrounds · Chicago Playgrounds | 2026-10-13 | Downloaded as a file |
| www.studmed.ru | Проверка доступа | 2026-10-12 | Downloaded as a file |
| 15-derives.pages.dev | Derive.xyz | Trade Onchain Crypto Options & Perps | 2026-10-12 | Downloaded as a file |
| ramses-exchange.pages.dev | Ramses X | 2026-10-10 | Built by a script at run time; Downloaded as a file |
| cv01.studmed.ru | Проверка доступа | 2026-10-10 | Built by a script at run time |
| ecoauktion.se | Välkommen | 2026-10-09 | Built by a script at run time; Downloaded as a file |
| 21-saturncredit.pages.dev | Saturn: Digital Dollars on Digital Credit | 2026-10-08 | Built by a script at run time; Downloaded as a file |