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WebAssembly module
API
This view is built from:
Module analysis/api/v1/wasm/d595e585becb6cb937ace23685bbc7a342336658d78a13ac4aaf89eac3841b52Decompiled code/api/v1/wasm/d595e585becb6cb937ace23685bbc7a342336658d78a13ac4aaf89eac3841b52/code

d595e585becb6cb937ace23685bbc7a342336658d78a13ac4aaf89eac3841b52

Known library: .NET runtimeDense dataHashing or cipher loops
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: .NET runtime.
Names it came with
File name: dotnet. Its build and the addresses it came from say so; whoever builds a module chooses these, so they are hints.
How it was built
Compiled with Emscripten, usually from C or C++.
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, 2026-10-11.
Findings
Dense data, Hashing or cipher loops. Leads, not verdicts: legitimate modules show these too.
Size
2.2 MiB
First seen
2026-10-11
Last seen
2026-10-11
Public scans
1
Functions
8269
Imports
83
Exports
93
Data segments
1820

Analysis limits

Only its first 2,000 strings were read.

How it was built

Compiled with Emscripten, usually from C or C++.

Language
C or C++, probablyNot named. Emscripten and clang mostly compile C and C++.
Compiler
EmscriptenThe toolchain that compiles C and C++ (sometimes Rust) for the web. It comes with the JavaScript that loads the module.
System interface
WASIStandard calls for clocks, random numbers and files. In a browser the page's own JavaScript provides them.
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.

Hashing and cipher code

Algorithms recognised from their published constants, tables and rotation amounts: CRC-32, SHA-1. Legitimate modules use them all the time, for hashing, captchas and encryption, so this is a lead, not a verdict.

  • function 2043SHA-1 ·
  • function 2044SHA-1 · constants in its code

Decompiled code

8,268 of 8,269 functions decompiled to C-like pseudocode; 83 more are imported from the page.

  • 1 of 8,269 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.

File layout

WebAssembly binary format version 1, core module, 10 sections.

SectionOffsetSizeItems
type0x82.0 KiB240
import0x82a2.1 KiB83
function0x108a8.1 KiB8,269
table0x30e19 bytes1
memory0x30ea9 bytes1
global0x30f321 bytes3
export0x31082.0 KiB93
element0x39227.6 KiB1
code0x575c1.7 MiB8,269
data0x1b8a30489.9 KiB1,820
Memory
8,192 pages (512.0 MiB), up to 32,768 pages (2.0 GiB)
Table
3,888 entries, up to 3,888 entries, funcref
Globals
3
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. 1,820 segments, 477.2 KiB in all. The chart shows 65: the first 64 and every encrypted or compressed one.

1,755 segments not drawn (385.9 KiB)02468Segment 0: 78,064 bytes, 5.26 bits per byteSegment 1: 1,940 bytes, 5.93 bits per byteSegment 3: 21 bytes, 0.7 bits per byteSegment 4: 105 bytes, 1.08 bits per byteSegment 5: 41 bytes, 0.84 bits per byteSegment 6: 29 bytes, 0.85 bits per byteSegment 7: 137 bytes, 1.18 bits per byteSegment 9: 569 bytes, 1.03 bits per byteSegment 10: 81 bytes, 0.81 bits per byteSegment 11: 33 bytes, 1.26 bits per byteSegment 12: 773 bytes, 1.13 bits per byteSegment 13: 181 bytes, 0.94 bits per byteSegment 14: 13 bytes, 0.99 bits per byteSegment 15: 217 bytes, 0.99 bits per byteSegment 16: 53 bytes, 1.18 bits per byteSegment 18: 125 bytes, 0.82 bits per byteSegment 19: 41 bytes, 0.84 bits per byteSegment 20: 37 bytes, 0.84 bits per byteSegment 21: 81 bytes, 0.83 bits per byteSegment 22: 5 bytes, 0.97 bits per byteSegment 23: 97 bytes, 0.81 bits per byteSegment 25: 69 bytes, 0.81 bits per byteSegment 26: 669 bytes, 0.81 bits per byteSegment 27: 193 bytes, 0.76 bits per byteSegment 28: 9 bytes, 0.92 bits per byteSegment 29: 209 bytes, 0.82 bits per byteSegment 30: 21 bytes, 0.86 bits per byteSegment 31: 21 bytes, 0.86 bits per byteSegment 34: 237 bytes, 1.18 bits per byteSegment 35: 17 bytes, 1.56 bits per byteSegment 36: 21 bytes, 0.86 bits per byteSegment 37: 57 bytes, 1.26 bits per byteSegment 38: 693 bytes, 1.36 bits per byteSegment 39: 5 bytes, 1.37 bits per byteSegment 40: 13 bytes, 1.2 bits per byteSegment 41: 13 bytes, 0.99 bits per byteSegment 42: 53 bytes, 0.9 bits per byteSegment 43: 93 bytes, 1.09 bits per byteSegment 44: 9 bytes, 0.99 bits per byteSegment 45: 17 bytes, 1.26 bits per byteSegment 47: 114 bytes, 2.24 bits per byteSegment 48: 6 bytes, 1.92 bits per byteSegment 49: 6 bytes, 1.92 bits per byteSegment 50: 6 bytes, 1.92 bits per byteSegment 51: 6 bytes, 1.92 bits per byteSegment 52: 6 bytes, 1.92 bits per byteSegment 53: 6 bytes, 1.92 bits per byteSegment 54: 6 bytes, 1.92 bits per byteSegment 55: 6 bytes, 1.92 bits per byteSegment 56: 13 bytes, 2.03 bits per byteSegment 57: 5 bytes, 1.37 bits per byteSegment 58: 5 bytes, 1.37 bits per byteSegment 59: 5 bytes, 1.37 bits per byteSegment 60: 5 bytes, 1.37 bits per byteSegment 61: 5 bytes, 1.37 bits per byteSegment 62: 5 bytes, 1.37 bits per byteSegment 63: 5 bytes, 0.97 bits per byteSegment 1627: 8,225 bytes, 7.94 bits per byte
data segment encrypted or compressed 1,755 segments not drawn 7.5 bits per byteHeight: bits per byte. Width: share of all the data.
  • Segment 1627: 8,225 bytes at 7.94 bits per byte

Imports (83)

  • env.__assert_fail
  • env.mono_wasm_invoke_js_blazor
  • env.mono_wasm_invoke_js_marshalled
  • env.mono_wasm_invoke_js_unmarshalled
  • env.emscripten_asm_const_int
  • env.exit
  • env.mono_wasm_invoke_js_with_args
  • env.mono_wasm_get_object_property
  • env.mono_wasm_get_by_index
  • env.mono_wasm_set_object_property
  • env.mono_wasm_set_by_index
  • env.mono_wasm_get_global_object
  • env.mono_wasm_create_cs_owned_object
  • env.mono_wasm_release_cs_owned_object
  • env.mono_wasm_typed_array_to_array
  • env.mono_wasm_typed_array_copy_to
  • env.mono_wasm_typed_array_from
  • env.mono_wasm_typed_array_copy_from
  • env.mono_wasm_add_event_listener
  • env.mono_wasm_remove_event_listener
  • env.compile_function
  • env.abort
  • env.strftime
  • env.gettimeofday
  • env.localtime_r
  • env.time
  • env.clock_getres
  • env.clock_gettime
  • env.schedule_background_exec
  • env.tzset
  • env.mono_set_timeout
  • env.__cxa_allocate_exception
  • env.__cxa_throw
  • env.invoke_vi
  • env.__cxa_find_matching_catch_3
  • env.getTempRet0
  • env.llvm_eh_typeid_for
  • env.__cxa_begin_catch
  • env.__cxa_end_catch
  • env.__resumeException
  • env.gai_strerror
  • env.flock
  • env.dotnet_browser_entropy
  • env.emscripten_get_heap_max
  • wasi_snapshot_preview1.fd_close
  • env.__sys_getdents64
  • env.__sys_fcntl64
  • env.__sys_open
  • env.__sys_fadvise64_64
  • env.__sys_mmap2

Exports (93)

Scripts that carry or load it

  • kyrklandet.se 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
env.__assert_failnum_char > 0 && num_char == str_len
env.__assert_failC:\Program Files\dotnet\packs\Microsoft.NETCore.App.Runtime.Mono.browser-wasm\6.0.11\runtimes\browser-wasm\native\src\dr
env.__assert_failmono_wasm_load_runtime
env.__assert_failwasm_dl_symbol
env.__assert_failstrlen (name) < 100
env.__assert_failget_native_to_interp
env.__assert_faillength >= 0
env.__assert_failmono_wasm_string_from_utf16
env.__assert_failicall_table_lookup
env.__assert_fail(token & MONO_TOKEN_METHOD_DEF) == MONO_TOKEN_METHOD_DEF
env.__assert_failindexes
env.__assert_failicall_table_lookup_symbol
env.__sys_ioctlmini_llvmonly_resolve_generic_virtual_call
env.invoke_iiibasic_string
env.invoke_viicondition_variable::wait: mutex not locked
env.invoke_viicondition_variable wait failed

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: 1 function (common in codecs and captchas)
  • Known hashing or cipher algorithms: CRC-32, SHA-1
  • Encrypted or compressed data: 1 block, 8.0 KiB (1.7% 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.

  • 7fa6fc38…4bee822.8 MiB · first seen 2026-10-05 · 344 functions in common (10% of this module's, 9% of that one's)
  • b3a1014c…ae72e42.8 MiB · first seen 2026-10-16 · 344 functions in common (10% of this module's, 9% of that one's)
  • 0c214988…c901d725.1 KiB · first seen 2026-10-11 · 6 functions in common (under 1% of this module's, 17% of that one's)

Seen on 1 public scan

PageTitleSeenHow it got there
kyrklandet.seKyrklandet - Startsidan2026-10-11Built by a script at run time; Downloaded as a file