Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaf737bb8a191eab…

MALICIOUS

PDF

42.5 KB Created: 2021-05-18 04:18:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 360f60fadb8e9c874332d64d28252456 SHA-1: d89b057725e87c5f988753d7da961286ad94033c SHA-256: aaf737bb8a191eab36313d3c1fcbfd0d77a1c7eafc2d33bdc3a092b72533f0a9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, disguised as a game hack generator. The heuristic firings indicate that these links are associated with known malicious redirectors and a game hack lure. Although no scripts were extracted, the document's structure and embedded links strongly suggest a phishing or redirection attempt to a malicious site.

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/hack-coin-master-no-survey-game-hack In PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/coin-master-hack-cheat-generator-d_GM406889139.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/how-to-make-robux_GM431946152.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/robux-generator-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/hack-to-send-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/free-robux-hacks-no-verification_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_off00004db4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DB4 23892 bytes
SHA-256: a38c9837f7eabcfc492bf7b12e7012a67a48353c36261203f79ca333bdc1d28d
font_01_sfnt_off00008427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8427 18148 bytes
SHA-256: e84df6580521eb153faf73f2cf2f63c6185ac0436430677c3eaeca27c8c111a1

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