ScanMalware.com
WebAssembly module
API
This view is built from:
Module analysis/api/v1/wasm/bff71f960393482ae7e2a678e88985b0f30e7b8e2a046fb7e6d520c13080be56Decompiled code/api/v1/wasm/bff71f960393482ae7e2a678e88985b0f30e7b8e2a046fb7e6d520c13080be56/code

bff71f960393482ae7e2a678e88985b0f30e7b8e2a046fb7e6d520c13080be56

Dense data
Download .wasmSearch scans with this module

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
Built from the Rust crate share_lib.
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 1 public scan, 2026-10-14.
Findings
Dense data. Leads, not verdicts: legitimate modules show these too.
Size
435.3 KiB
First seen
2026-10-14
Last seen
2026-10-14
Public scans
1
Functions
417
Imports
1
Exports
19
Data segments
119

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.
Rewritten after compiling
walrusA library for rewriting compiled modules. wasm-bindgen runs it on every build, so it comes with wasm-bindgen and says nothing more about 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

7 Rust crates from crates.io, with the versions it was built with:

Build tools and versions it names:

  • Rust
  • rustc 1.93.1 (01f6ddf75 2026-02-11)
  • walrus 0.25.2
  • wasm-bindgen 0.2.114

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.

Decompiled code

416 of 417 functions decompiled to C-like pseudocode; 1 more is imported from the page.

  • 1 of 417 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.

FunctionSizeBlocksComplexityNotes
No functions match.

Sections

Code 417Data 119Elem 1Type 35Table 2Export 19Global 1Import 1Memory 1Function 417custom: producerscustom: target_features

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. 119 segments, 51.3 KiB in all. The chart shows 66: the first 64 and every encrypted or compressed one.

53 segments not drawn (20.4 KiB)02468Segment 0: 6,233 bytes, 5.15 bits per byteSegment 1: 5 bytes, 1.37 bits per byteSegment 2: 5 bytes, 1.37 bits per byteSegment 3: 5 bytes, 1.37 bits per byteSegment 4: 5 bytes, 1.37 bits per byteSegment 5: 5 bytes, 1.37 bits per byteSegment 6: 5 bytes, 1.37 bits per byteSegment 7: 5 bytes, 1.37 bits per byteSegment 8: 5 bytes, 1.37 bits per byteSegment 9: 5 bytes, 1.37 bits per byteSegment 10: 5 bytes, 1.37 bits per byteSegment 11: 5 bytes, 1.37 bits per byteSegment 12: 5 bytes, 1.37 bits per byteSegment 13: 5 bytes, 1.37 bits per byteSegment 14: 5 bytes, 1.37 bits per byteSegment 15: 5 bytes, 1.37 bits per byteSegment 16: 5 bytes, 1.37 bits per byteSegment 17: 5 bytes, 1.37 bits per byteSegment 18: 5 bytes, 1.37 bits per byteSegment 19: 5 bytes, 1.37 bits per byteSegment 20: 5 bytes, 1.37 bits per byteSegment 21: 5 bytes, 1.37 bits per byteSegment 22: 5 bytes, 1.37 bits per byteSegment 23: 5 bytes, 1.37 bits per byteSegment 24: 5 bytes, 1.37 bits per byteSegment 25: 5 bytes, 1.37 bits per byteSegment 26: 5 bytes, 1.37 bits per byteSegment 27: 5 bytes, 1.37 bits per byteSegment 28: 5 bytes, 1.37 bits per byteSegment 29: 5 bytes, 1.37 bits per byteSegment 30: 5 bytes, 1.37 bits per byteSegment 31: 5 bytes, 1.37 bits per byteSegment 32: 5 bytes, 1.37 bits per byteSegment 33: 5 bytes, 1.37 bits per byteSegment 34: 5 bytes, 1.37 bits per byteSegment 35: 1,269 bytes, 5.2 bits per byteSegment 36: 1,437 bytes, 4.77 bits per byteSegment 37: 245 bytes, 3.72 bits per byteSegment 38: 1,517 bytes, 2.49 bits per byteSegment 39: 781 bytes, 4.87 bits per byteSegment 42: 2,362 bytes, 2.78 bits per byteSegment 47: 2 bytes, 1 bits per byteSegment 48: 2 bytes, 1 bits per byteSegment 49: 2 bytes, 1 bits per byteSegment 50: 3 bytes, 1.58 bits per byteSegment 51: 3 bytes, 1.58 bits per byteSegment 52: 3 bytes, 1.58 bits per byteSegment 53: 3 bytes, 1.58 bits per byteSegment 54: 4 bytes, 2 bits per byteSegment 55: 4 bytes, 2 bits per byteSegment 56: 4 bytes, 2 bits per byteSegment 57: 5 bytes, 2.32 bits per byteSegment 58: 5 bytes, 2.32 bits per byteSegment 59: 5 bytes, 2.32 bits per byteSegment 60: 5 bytes, 2.32 bits per byteSegment 61: 6 bytes, 2.58 bits per byteSegment 62: 6 bytes, 2.58 bits per byteSegment 63: 6 bytes, 2.58 bits per byteSegment 40: 2,511 bytes, 7.83 bits per byteSegment 43: 4,680 bytes, 7.95 bits per byteSegment 67: 4,815 bytes, 7.91 bits per byteSegment 111: 5,571 bytes, 7.73 bits per byte
data segment encrypted or compressed 53 segments not drawn 7.5 bits per byteHeight: bits per byte. Width: share of all the data.
  • Segment 40: 2,511 bytes at 7.83 bits per byte
  • Segment 43: 4,680 bytes at 7.95 bits per byte
  • Segment 67: 4,815 bytes at 7.91 bits per byte
  • Segment 111: 5,571 bytes at 7.73 bits per byte

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.

  • ./share_lib_bg.js.__wbindgen_init_externref_table

Exports (19)

Scripts that carry or load it

  • www.exchange.freedx.com 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

  • Produced 3 strings at run time (text not shown).

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: none recognised
  • Encrypted or compressed data: 4 blocks, 17.2 KiB (33.5% of its data)
  • 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.

Shares code with

Other modules that contain some of the same functions. They are ranked by functions few modules have, so a language's own runtime does not link every module built with it. Shared code often means a shared library or the same developer. It is a lead, not a verdict.

  • 7e681fec…ca8d151.6 MiB · first seen 2026-10-09 · 45 functions in common (17% of this module's, 3% of that one's)
  • b1eb5e01…355b9f1.1 MiB · first seen 2026-10-08 · 32 functions in common (12% of this module's, 4% of that one's)

Seen on 1 public scan

PageTitleSeenHow it got there
www.exchange.freedx.comExchange Rate | Cryptocurrency Exchange2026-10-14Built by a script at run time; Downloaded as a file