Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac5fb3492c5f7815…

MALICIOUS

PDF

39.4 KB Created: 2021-05-14 20:17:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e9d3b512063a1edabfc79b5c69fc3531 SHA-1: e13812f613f183aab60435b44067dfeebc14cbf1 SHA-256: ac5fb3492c5f7815bbbb7289c86c15df11ae8eeea37f0ffd8eb6f8738b81d2ab
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector, under the guise of game hacks and free accounts. The ML classifier strongly indicates maliciousness, and the embedded URLs suggest a phishing or malware distribution attempt. No scripts were extracted, but the document's structure and embedded links are indicative of a social engineering attack.

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/hacks-roblox-game-hack In PDF document text
    • https://anlathich.com/public/upload/files/coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/coin-master-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/hack-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/coin-master-link_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/rewards-roblox_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/abd-roblox_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-gifts-coin-master_GM406889139.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
font_00_sfnt_off00004a8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A8F 25256 bytes
SHA-256: b8597e198fce26364e9746849b25e90e08916c5bc674db7d2b7539c3f20f1653

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