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WebAssembly module
API
This view is built from:
Module analysis/api/v1/wasm/13bb86d219fe7f91e3ab58a5682be168b669cd4b283b9274a69011eae845a440Decompiled code/api/v1/wasm/13bb86d219fe7f91e3ab58a5682be168b669cd4b283b9274a69011eae845a440/code

13bb86d219fe7f91e3ab58a5682be168b669cd4b283b9274a69011eae845a440

Known library: dotLottie animation playerDense 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
Known library: dotLottie animation player.
Names it came with
Came with the npm package @lottiefiles/dotlottie-web 0.54.1 (2 sites) · From cdn.jsdelivr.net (2 sites) · File name: dotlottie-player (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
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 5 public scans, 2026-10-08 to 2026-10-15.
Findings
Dense data. Leads, not verdicts: legitimate modules show these too.
Size
1.3 MiB
First seen
2026-10-08
Last seen
2026-10-15
Public scans
5
Functions
4627
Imports
57
Exports
23
Data segments
305

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

9 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

4,623 of 4,627 functions decompiled to C-like pseudocode; 57 more are imported from the page.

  • 4 of 4,627 functions could not be decompiled.

Beyond WebAssembly 1.0: Threads and shared memory (17 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.

FunctionSizeBlocksComplexityNotes
No functions match.

File layout

WebAssembly binary format version 1, core module, 11 sections.

SectionOffsetSizeItems
type0x81.3 KiB165
import0x528349 bytes57
function0x6854.6 KiB4,627
table0x18c29 bytes1
memory0x18cb9 bytes1
global0x18d415 bytes2
export0x18e3138 bytes23
element0x196d3.8 KiB1
datacount0x28c74 bytes
code0x28cb1.1 MiB4,627
data0x11f8af158.5 KiB305
Memory
268 pages (16.8 MiB), up to 32,768 pages (2.0 GiB)
Table
1,999 entries, up to 1,999 entries, funcref
Globals
2
Element segments
1
Declared data segments
305
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. 305 segments, 156.3 KiB in all. The chart shows 65: the first 64 and every encrypted or compressed one.

240 segments not drawn (106.7 KiB)02468Segment 0: 21,325 bytes, 5.19 bits per byteSegment 2: 1,161 bytes, 4.8 bits per byteSegment 4: 5,614 bytes, 4.78 bits per byteSegment 5: 80 bytes, 5.6 bits per byteSegment 6: 4,102 bytes, 4.87 bits per byteSegment 9: 25 bytes, 1.42 bits per byteSegment 10: 4,374 bytes, 6.95 bits per byteSegment 11: 1,661 bytes, 4.04 bits per byteSegment 12: 114 bytes, 2.12 bits per byteSegment 13: 77 bytes, 1.43 bits per byteSegment 14: 118 bytes, 2.38 bits per byteSegment 15: 101 bytes, 1.78 bits per byteSegment 16: 105 bytes, 1.74 bits per byteSegment 17: 17 bytes, 0.95 bits per byteSegment 18: 25 bytes, 1.29 bits per byteSegment 19: 172 bytes, 2.94 bits per byteSegment 20: 51 bytes, 1.5 bits per byteSegment 21: 109 bytes, 1.86 bits per byteSegment 22: 2,173 bytes, 3.64 bits per byteSegment 23: 900 bytes, 7.28 bits per byteSegment 24: 17 bytes, 4.09 bits per byteSegment 25: 695 bytes, 6.03 bits per byteSegment 26: 753 bytes, 6.2 bits per byteSegment 27: 497 bytes, 4.19 bits per byteSegment 28: 9 bytes, 1.45 bits per byteSegment 29: 204 bytes, 4.62 bits per byteSegment 30: 402 bytes, 3.15 bits per byteSegment 31: 21 bytes, 3.46 bits per byteSegment 32: 287 bytes, 4.41 bits per byteSegment 33: 53 bytes, 3.36 bits per byteSegment 34: 21 bytes, 3.27 bits per byteSegment 35: 113 bytes, 3.47 bits per byteSegment 36: 71 bytes, 3.77 bits per byteSegment 37: 219 bytes, 4.1 bits per byteSegment 38: 61 bytes, 4.05 bits per byteSegment 39: 175 bytes, 3.92 bits per byteSegment 40: 133 bytes, 3.94 bits per byteSegment 41: 33 bytes, 3.77 bits per byteSegment 42: 15 bytes, 3.32 bits per byteSegment 43: 21 bytes, 3.37 bits per byteSegment 44: 101 bytes, 3.9 bits per byteSegment 45: 111 bytes, 4.29 bits per byteSegment 46: 21 bytes, 3.33 bits per byteSegment 47: 275 bytes, 4.27 bits per byteSegment 48: 195 bytes, 4.12 bits per byteSegment 49: 33 bytes, 3.77 bits per byteSegment 50: 81 bytes, 3.98 bits per byteSegment 51: 63 bytes, 3.85 bits per byteSegment 52: 15 bytes, 3.46 bits per byteSegment 53: 21 bytes, 3.27 bits per byteSegment 54: 21 bytes, 3.33 bits per byteSegment 55: 21 bytes, 3.33 bits per byteSegment 56: 244 bytes, 4.74 bits per byteSegment 57: 21 bytes, 3.17 bits per byteSegment 58: 21 bytes, 3.36 bits per byteSegment 59: 71 bytes, 3.66 bits per byteSegment 60: 83 bytes, 3.87 bits per byteSegment 61: 69 bytes, 2.59 bits per byteSegment 62: 33 bytes, 3.73 bits per byteSegment 63: 15 bytes, 3.46 bits per byteSegment 99: 3,108 bytes, 7.6 bits per byte
data segment encrypted or compressed 240 segments not drawn 7.5 bits per byteHeight: bits per byte. Width: share of all the data.
  • Segment 99: 3,108 bytes at 7.6 bits per byte

Imports (57)

  • 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

  • avtor24.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.

ImportText
a.$void
a.Afloa
a.Adouble
a.DMode
a.Zstd::string
a._bool
a.cn_bits >= 0
a.cdeps/thorvg/src/loaders/webp/utils/bit_reader.cpp
a.cVP8LReadBits
a.cbr != NULL && br->buf_ != NULL
a.cdeps/thorvg/src/loaders/webp/dec/../utils/bit_reader_inl.
a.cVP8LoadNewBytes
a.cmeta_index < hdr->num_htree_groups_
a.cdeps/thorvg/src/loaders/webp/dec/vp8l.cpp
a.cGetHtreeGroupForPos
a.cbr->bit_pos_ >= VP8L_WBITS
a.cVP8LDoFillBitWindow
a.cevery
a.cReadTransform
a.cdec->next_transform_ <= NUM_TRANSFORMS
a.copacity
a.cnum_htree_groups <= MAX_HTREE_GROUPS
a.cdeps/thorvg/src/loaders/webp/
a.cVP8LHtreeGroupsNew
a.cdata == NULL
a.cDecodeImageStream
a.cbr != NULL
a.cVP8LInitBitReader
a.cstart != NULL
a.clength < 0xfffffff8u

Showing 30 of 271.

In our sandbox

  • Produced 2 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.

  1. PointerUpPointerDownPointerEnterPointerMovePointerExitClickOnCompleteOnLoopCompleteParsing error: CreationErrorSecurityC
  2. >?>>?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, 3.0 KiB (1.9% 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.

  • 1ad3a28a…3d2d441.8 MiB · first seen 2026-10-07 · 531 functions in common (30% of this module's, 24% of that one's)
  • a0ed8d98…edbaa11.1 MiB · first seen 2026-10-05 · 470 functions in common (27% of this module's, 30% of that one's)
  • 2c62b114…37fb031.1 MiB · first seen 2026-10-14 · 454 functions in common (26% of this module's, 28% of that one's)
  • f26659c7…352eae1.1 MiB · first seen 2026-10-05 · 171 functions in common (10% of this module's, 12% of that one's)

Seen on 5 public scans

PageTitleSeenHow it got there
avtor24.ruПомощь студентам в учебе — курсовые, контрольные и другие работы | Автор242026-10-15Built by a script at run time; Downloaded as a file
avtor24.ruПомощь студентам в учебе — курсовые, контрольные и другие работы | Автор242026-10-14Built by a script at run time; Downloaded as a file
avtor24.ruПомощь студентам в учебе — курсовые, контрольные и другие работы | Автор242026-10-12Built by a script at run time; Downloaded as a file
avtor24.ruПомощь студентам в учебе — курсовые, контрольные и другие работы | Автор242026-10-09Built by a script at run time; Downloaded as a file
avtor24.ruПомощь студентам в учебе — курсовые, контрольные и другие работы | Автор242026-10-08Built by a script at run time; Downloaded as a file