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Malicious package

pdf-converter-proPyPI

Malicious code in pdf-converter-pro (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2026-6541
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall pdf-converter-pro

What this malware does

Package is advertised as a PDF converter but contains no PDF generation code. Its sole public method TXTtoPDFConverter.create_pdf(txt_path, pdf_path) is gated on the literal arguments 'file.txt' and 'file.pdf'; when matched, it invokes find_py_files() which walks the user's home directory, current working directory, and filesystem/drive roots via os.walk to collect up to 50.py source files, then _send_py_file() POSTs each file's bytes to https://api.telegram.org/bot<redacted>/sendDocument using a hardcoded bot token and chat_id 7481245219. A local sqlite database tracks already-exfiltrated files to avoid resending. Author metadata is placeholder ('YourName', 'A simple PDF converter library'), and the deceptive name targets developers searching PyPI for a PDF utility. Calling the advertised API silently routes the installer's source code to an attacker-controlled Telegram chat and produces none of the advertised functionality.

Package hides code exfiltrating source code files if run as module.

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-06-pdf-converter-pro

Reasons (based on the campaign):

  • files-exfiltration

  • A Telegram webhook is used to send collected data.

Malicious versions

1 flagged
1.0.0

Indicators of compromise (SHA-256)

5978e6d195a6e1aed1e705347db44516aca76c3a6e40ef1f47fb83087588ee16
0b3a5f6d1d39c20feca11d0129f0efa21bdf564586045555b756cc25bce73efc

Detection & response playbook

Credential / info stealer
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for pdf-converter-pro (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging pdf-converter-pro across your stack and pipelines.

  2. If you installed it — respond

    pdf-converter-pro is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If pdf-converter-pro was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks pdf-converter-pro before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. pdf-converter-pro on PyPI has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-06-pdf-converter-proIN-MAL-2026-007760

References

Credits

  • Amazon Inspector · finder
  • Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks pdf-converter-pro-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.