Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a0814309bdb8fee…

MALICIOUS

PDF

19.1 KB Created: 2021-07-09 04:50:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 756120ee609ff5a819daa66bc676c654 SHA-1: c144b6d15c69ec48eb171939e6a60dc0ebd7ae1b SHA-256: 4a0814309bdb8fee049f457dec4f147160bc5397f5456346028ad3b50427b4ab
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector domains and sites offering free game currency or hacks, indicating a lure for users to visit potentially malicious sites. The ML classifier also flagged this PDF as malicious. The embedded URLs are likely part of a phishing or scam campaign designed to trick users into clicking through to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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 http://netcdn.tw/app/431946152/who-to-get-free-robux-game-hack In PDF document text
    • http://petrorang.com/admin-panel/products/images/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/freespinandcoin_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/coin-master-today_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/coin-master-free-spins-glitch_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/how-to-hack-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/husky-1-million-free-robux_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/coin-master-free-spins-link-no-verification_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/tiktok-free-840-apk_GM835599320.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-followers-for-tiktok_GM835599320.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/roblox-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text

Related samples 8

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