PDF malware analysis — malicious · 45e29e2e8a179f25

MALICIOUS

PDF

42.0 KB Created: 2021-05-13 17:28:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 817ad6b4323fb8f3792be4508e205363 SHA-1: be496d4b16436f530bd9bc8c20d1fbc7cfa6948f SHA-256: 45e29e2e8a179f2532231033ff7b0b8d7e71f259104dc5fb52ed6db3e1a3921e

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, specifically advertising 'free generators' and 'game hacks' for popular games. The primary redirector URL is https://netcdn.xyz/app/406889139/coin-master-free-spins-app-android-game-hack. The document body and embedded links suggest a social engineering lure to trick users into visiting these malicious sites, likely for further malware delivery or phishing. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://netcdn.xyz/app/406889139/coin-master-free-spins-app-android-game-hack In PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/free-100-robux_GM431946152.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/free-robux-games_GM431946152.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/coin-master-free-spins-ios_GM406889139.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/hack-download_GM431946152.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/free-limiteds-roblox_GM431946152.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/rewards-roblox_GM431946152.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/coin-master-hack-2021-app-download_GM406889139.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/minecraft-images-free_GM479516143.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/free-coin-master-gifts_GM406889139.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/coin-master-free-spins-16-04-19_GM406889139.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/free-apk-mod-coin-master_GM406889139.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
- https://www.journalofpracticenursing.co.uk/uploads/files/files/roblox-top_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004c81.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C81	23728 bytes
SHA-256: `fa47b543bc9655c1ef4a02a97f6da0d6362fc8a315471f902b34bbb340ae2a21`
`font_01_sfnt_off00008286.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8286	18060 bytes
SHA-256: `7f8980b6f3213b204c7b050e62c653166806b65682437d624869b2fc7a4cb6a7`

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