Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6b94fad62d87881…

MALICIOUS

PDF

42.8 KB Created: 2021-05-12 06:06:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 27f96fc54453b1fdfdda48d57a2f4589 SHA-1: 859359e2e01fc7e8cf4aa4856f81ffc7d63557ff SHA-256: b6b94fad62d878813a6abde6826d853726630124111be7036bb64ec778255813
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, disguised as a "game hack" generator. The document body, though partially obfuscated, contains references to the same redirector URL. This indicates a phishing or scam attempt designed to lure users to malicious sites.

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/how-to-create-group-in-coin-master-free-spins-game-hack In PDF document text
    • http://ristorantimaculan.it/images/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • http://ristorantimaculan.it/images/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • http://ristorantimaculan.it/images/free-robux-site_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://ristorantimaculan.it/images/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • http://ristorantimaculan.it/images/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • http://ristorantimaculan.it/images/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://ristorantimaculan.it/images/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/free-face-roblox_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/coin-master-ios-hack-download_GM406889139.pdfIn PDF document text
    • http://ristorantimaculan.it/images/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a9c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A9C 25256 bytes
SHA-256: f421e2e4b4e3347ddc982c7fcfdea5b16ac91dc6cb727b14ca42b2bde1faf0fa
font_01_sfnt_off0000855d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x855D 18188 bytes
SHA-256: 214f541c49ef2ca421d67462486d7476b6aace0078e47079ad7f1e2427fd8839

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