Malicious PDF — malware analysis report

Static analysis result for SHA-256 28449421d3978d4f…

MALICIOUS

PDF

39.4 KB Created: 2021-05-17 12:23:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7f5a4c59a6527d34973307b54946ff36 SHA-1: 3e72643a39dacf5c7d3827980f80364c8e483f9c SHA-256: 28449421d3978d4f2cbb5768ee785e50d924e0ea30a5aca61453c87cf6ccaa73
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites that are flagged as malicious redirectors, specifically targeting users interested in game hacks and free currency. The document body and embedded URLs strongly suggest a lure for phishing or malware distribution. No scripts were extracted, but the presence of numerous malicious links indicates a high likelihood of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • 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.
  • 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/431946152/login-robux-game-hack In PDF document text
    • http://casabea.de/images/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://casabea.de/images/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/minecraft-kill-aura_GM479516143.pdfIn PDF document text
    • http://casabea.de/images/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://casabea.de/images/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • http://casabea.de/images/hack-coin-master-apk-32_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://casabea.de/images/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://casabea.de/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://casabea.de/images/coin-master-admin-free-spins_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/minecraft-free-download-android-apk_GM479516143.pdfIn PDF document text
    • http://casabea.de/images/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/free-robux-please_GM431946152.pdfIn PDF document text
    • http://casabea.de/images/easy-robux-com_GM431946152.pdfIn PDF document text
    • http://casabea.de/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004806.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4806 26548 bytes
SHA-256: 6dccfe1f0a1564bc7058f4c1fe8431060335c03969628badd9ea0f0eaaa5c4c9