f26659c7728f6dc1f069acb14742e6ce1012d9fbdc193d95adec59eadb352eae
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: dotLottie animation player.
- Names it came with
- File name: dotlottie-player. 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 and compiled with Emscripten.
- 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, 2026-10-05.
- Findings
- Dense data. Leads, not verdicts: legitimate modules show these too.
- Size
- 1.1 MiB
- First seen
- 2026-10-05
- Last seen
- 2026-10-05
- Public scans
- 1
- Functions
- 2913
- Imports
- 65
- Exports
- 22
- Data segments
- 370
How it was built
Written in Rust and compiled with Emscripten.
- Language
- RustThe Rust compiler (rustc) left its name in the module.
- Compiler
- EmscriptenThe toolchain that compiles C and C++ (sometimes Rust) for the web. It comes with the JavaScript that loads the module.
- Compiler backend
- LLVMThe code generator behind rustc, clang, Emscripten and TinyGo.
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
13 Rust crates 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: CRC-32. Legitimate modules use them all the time, for hashing, captchas and encryption, so this is a lead, not a verdict.
Decompiled code
2,912 of 2,913 functions decompiled to C-like pseudocode; 65 more are imported from the page.
- 1 of 2,913 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 | 1019 bytes | 131 |
| import | 0x403 | 405 bytes | 65 |
| function | 0x598 | 2.9 KiB | 2,913 |
| table | 0x1101 | 9 bytes | 1 |
| memory | 0x110a | 9 bytes | 1 |
| global | 0x1113 | 15 bytes | 2 |
| export | 0x1122 | 132 bytes | 22 |
| element | 0x11a6 | 2.8 KiB | 1 |
| code | 0x1ce1 | 931.9 KiB | 2,913 |
| data | 0xeac73 | 137.7 KiB | 370 |
- Memory
- 268 pages (16.8 MiB), up to 32,768 pages (2.0 GiB)
- Table
- 1,443 entries, up to 1,443 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. 370 segments, 135.1 KiB in all. The chart shows 65: the first 64 and every encrypted or compressed one.
- Segment 4: 27,959 bytes at 7.53 bits per byte
- Segment 7: 5,457 bytes at 7.93 bits per byte
- Segment 30: 5,636 bytes at 7.81 bits per byte
- Segment 324: 2,519 bytes at 7.8 bits per byte
Imports (65)
- 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 (22)
Scripts that carry or load it
- static.360.ru 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 |
|---|---|
| a.B | Mode |
| a.I | floa |
| a.I | double |
| a.J | std::string |
| a.J | std::basic_string<unsigned char> |
| a.K | createDefaultLayout |
| a.K | createDefaultConfig |
| a.c | IsNumber() |
| a.c | ../../../modules/thorvg/src/loaders/lottie/rapidjson/document.h |
| a.c | GetDouble |
| a.c | (data_.f.flags & kUint64Flag) != 0 |
| a.c | n_bits >= 0 |
| a.c | ../../../modules/thorvg/src/loaders/webp/utils/bit_reader.cpp |
| a.c | VP8LReadBits |
| a.c | br != NULL && br->buf_ != NULL |
| a.c | ../../../modules/thorvg/src/loaders/webp/dec/../utils/bit |
| a.c | VP8LoadNewBytes |
| a.c | !HasParseError() |
| a.c | ../../../modules/thorvg/src/loaders/lottie/rapidjson/reader.h |
| a.c | Transit |
| a.c | dst == IterativeParsingValueState |
| a.c | token == ColonToken |
| a.c | d == IterativeParsingFinishState |
| a.c | IterativeParseNext |
| a.c | src == IterativeParsingElementState |
| a.c | HandleError |
| a.c | dst_ != 0 |
| a.c | ../../../modules/thorvg/src/loaders/lottie/rapidjson/stream.h |
| a.c | IsBool() |
| a.c | GetBool |
Showing 30 of 248.
In our sandbox
- Produced 5 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.
- /Users/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/uniffi_core-0.25.3/src/ffi_converter_impls.rsunexpect
- attempt to divide by zerocalled `Result::unwrap()` on an `Err` valueuuuuuuuubtnufruuuuuuuuuuuuuuuuuu
- /Users/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/jzon-0.12.5/src/codegen.rsnull: falsetrue
- /Users/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/jzon-0.12.5/src/object.rs/Users/runner/.cargo/registr
- >?>>?456789:;<=
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: CRC-32
- Encrypted or compressed data: 1 block, 2.5 KiB (1.8% 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.
Seen on 1 public scan
| Page | Title | Seen | How it got there |
|---|---|---|---|
| 360.ru | 360.ru | 2026-10-05 | Built by a script at run time; Downloaded as a file |