820f77991e3d2e3018579c8d612cd1450f82991929c97ab45f8216092cb29aed
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: Skia CanvasKit graphics.
- Names it came with
- From www.gstatic.com · File name: canvaskit (2 sites). Its build and the addresses it came from say so; whoever builds a module chooses these, so they are hints.
- How it was built
- Not named in the module.
- 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 2 public scans, 2026-10-17 to 2026-10-23.
- Findings
- Carries JavaScript, Dense data, Hashing or cipher loops. Leads, not verdicts: legitimate modules show these too.
- Size
- 5.4 MiB
- First seen
- 2026-10-17
- Last seen
- 2026-10-23
- Public scans
- 2
- Functions
- 10813
- Imports
- 237
- Exports
- 23
- Data segments
- 2471
Analysis limits
Only its first 2,000 strings were read.
How it was built
The module names no language, compiler or build tool. Release builds often strip this information, and hand-written modules usually lack it.
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
10,805 of 10,813 functions decompiled to C-like pseudocode; 237 more are imported from the page.
- 8 of 10,813 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, 10 sections.
| Section | Offset | Size | Items |
|---|---|---|---|
| type | 0x8 | 2.6 KiB | 286 |
| import | 0xa9a | 1.6 KiB | 237 |
| function | 0x10e6 | 10.7 KiB | 10,813 |
| table | 0x3bdd | 9 bytes | 1 |
| memory | 0x3be6 | 9 bytes | 1 |
| global | 0x3bef | 15 bytes | 2 |
| export | 0x3bfe | 140 bytes | 23 |
| element | 0x3c8a | 16.6 KiB | 1 |
| code | 0x7f06 | 4.8 MiB | 10,813 |
| data | 0x4c8472 | 598.6 KiB | 2,471 |
- Memory
- 512 pages (32.0 MiB), up to 32,768 pages (2.0 GiB)
- Table
- 8,539 entries, up to 8,539 entries, funcref
- Globals
- 2
- Element segments
- 1
- 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. 2,471 segments, 581.3 KiB in all. The chart shows 65: the first 64 and every encrypted or compressed one.
- Segment 651: 6,470 bytes at 7.89 bits per byte
Imports (237)
- a.a
- a.b
- a.c
- a.d
- a.e
- a.f
- a.g
- a.h
- a.i
- a.j
- a.k
- a.l
- a.m
- a.n
- a.o
- a.p
- a.q
- a.r
- a.s
- a.t
- a.u
- a.v
- a.w
- a.x
- a.y
- a.z
- a.A
- a.B
- a.C
- a.D
- a.E
- a.F
- a.G
- a.H
- a.I
- a.J
- a.K
- a.L
- a.M
- a.N
- a.O
- a.P
- a.Q
- a.R
- a.S
- a.T
- a.U
- a.V
- a.W
- a.X
Exports (23)
Scripts that carry or load it
- 50fem.se loads it.
- www.skolblox.se loads it.
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 |
|---|---|
| a.$ | Skia |
| a.A | TracedShader |
| a.A | RuntimeEffectUniform |
| a.A | StrokeOpts |
| a.A | PositionWithAffinity |
| a.A | FontStyle |
| a.A | ParagraphStyle |
| a.A | StrutStyle |
| a.A | TextStyle |
| a.A | URange |
| a.C | unsigned char |
| a.C | unsigned short |
| a.C | unsi |
| a.C | long |
| a.I | 1.6.43.git |
| a.K | Float32Array |
| a.K | Uint16Array |
| a.K | Uint32Array |
| a.M | std::wstring |
| a.M | std::u16string |
| a.M | std::u32string |
| a.Q | std::string |
| a.Q | std::basic_string<unsigned char> |
| a.R | floa |
| a.R | double |
| a.a | _getResourceCacheLimitBytes |
| a.a | _getResourceCacheUsageBytes |
| a.a | _releaseResourcesAndAbandonContext |
| a.a | _setResourceCacheLimitBytes |
| a.a | vppp |
Showing 30 of 659.
Hosts and scripts inside
Carries 5 scripts as text, analyzed like the page's own; they name www.w3.org.
In our sandbox
- Produced 20 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.
- uniform shader s, d;uniform blender b;half4 main(float2 xy) {return b.eval(s.eval(xy), d.eval(xy));}
- uniform shader image;uniform float4 decalBounds;half4 main(float2 coord) {return sk_decal(image, coord, decalBounds);}
- float _determinant2(mat2 m) {return m[0].x*m[1].y - m[0].y*m[1].x;}
- @base: metadata reported
- #base: bad call sequence
- #base: bad sizeof receiver
- #base: disabled by previous error
- #base: initialize falsely claimed already zeroed
- #base: initialize not called
- #base: no more information
- #base: unsupported option
- {vtable}wuffs_base__image_decoder
- {vtable}wuffs_base__io_transformer
- #lzw: internal error: inconsistent I/O
- #gif: bad graphic control
- `abcdefghijklmn
- GHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefg
- DFHSGothic-W5
- HuaTianKaiTi?
- 0123456789abcdefABCDEFxX+-pPiInN
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: 1 block, 6.3 KiB (1.1% of its data)
- JavaScript stored inside: 5
- 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 2 public scans
| Page | Title | Seen | How it got there |
|---|---|---|---|
| 50fem.se | 55½ | 2026-10-23 | Built by a script at run time; Downloaded as a file |
| skolblox.se | Skolblox – Microlearning som faktiskt fastnar | F–9 | 2026-10-17 | Built by a script at run time; Downloaded as a file |