Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad0d32d6bb7080ce…

MALICIOUS

PDF

42.4 KB Created: 2021-05-15 08:41:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3f8847e47ea0868d68690ecd6fce645b SHA-1: d9dc8c6736c5d6e9f8cce04d2837fafa10f21ed5 SHA-256: ad0d32d6bb7080cedb6498c1991b82a2f0d8ca89f70bb3d2a2af3231095947fc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. These links are designed to trick users into visiting potentially harmful websites. The ML classifier also strongly indicated maliciousness, supporting the conclusion that this document is part of a phishing or scam campaign.

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/431946152/rbxfree-com-free-robux-game-hack In PDF document text
    • https://itv-grabungen.de/images/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/daily-coin-master-link_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-promo-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-com_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-download_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-app-real_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-now_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-links-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-today_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-spins-coin-master-2021-no-verification_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-no-survey_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.

FilenameKindSourceSize
stream_003_off00004821.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4821 25724 bytes
SHA-256: f63155f65e56241bfab597360a7ba764b39219879d43329ebc6a4635940c3981
font_01_sfnt_off00008378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8378 18276 bytes
SHA-256: 3458f47f0b0e4c5d178391a23bbf01d917f000ba7933fbc297d15d2e5240f022

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