# MAL-2026-12675: Malicious code in ded-pwa-bnpl-forms-demo (npm)


- **Type:** Malicious package
- **Package:** `ded-pwa-bnpl-forms-demo` (npm)
- **Published:** 5 Aug 2026

## What is MAL-2026-12675?

MAL-2026-12675 is a malicious package in ded-pwa-bnpl-forms-demo, published on 5 Aug 2026. 

### Official description

On require of the package, index.js loads _support.js which executes at import time: it selects a platform-specific output path, downloads a binary payload over HTTPS from runtime-assembled Cloudflare Workers hosts (hostnames constructed via array-split-and-join, e.g. ['oob-','worker.cf101-adf.worker','s.dev'].join('')), with a fallback that queries DNS TXT records under *.dl.wel1.ru (hostnames similarly reconstructed from ['sdk.dl.','we','l1.','ru'].join('')), reads a chunk count from c.<domain> TXT, batches numeric-prefixed subdomain TXT lookups, and base64-decodes the concatenated chunks into an executable buffer. The payload is written to /var/tmp or %TEMP% under disguised names (.cache_<hex> on POSIX, dotnet_diag_<hex>.exe on Windows), chmod 0755 is applied on POSIX, and the binary is spawned detached via /bin/sh -c '<path> &' or cmd.exe /c start /b, with a.analytics_state marker file used to suppress re-runs. Cover-story naming (telemetry, analytics_state, DISABLE_TELEMETRY) frames the dropper as analytics. Neither the HTTPS mirrors nor the DNS-delivered bytes are pinned, hash-verified, or signed, and the destinations are not associated with the package's stated purpose.

## What should I do about MAL-2026-12675?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

## Fix prompt for AI coding agents

```text
MAL-2026-12675 is a malicious package: ded-pwa-bnpl-forms-demo (npm). Every version was published to cause harm.

Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.

Reference: https://insights.sbomify.com/MAL-2026-12675/ (Markdown: https://insights.sbomify.com/MAL-2026-12675/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12675

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12675/
Summaries are generated and may contain mistakes; the official description above is the record.