Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f2aca50bece3645…

MALICIOUS

PDF

42.2 KB Created: 2021-05-18 00:45:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2921b50fc0d76be2b2badbddea579638 SHA-1: bf7bf406537ef9209948bdf3a6b48b3d40f5dc1f SHA-256: 2f2aca50bece36456e65421c327e45d5e379f80e2a8f1e5e474ad64a5fbfb36a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as "free generator" or "game hack" lures. The primary link directs users to a page promising free food in Coin Master, which is a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate malicious redirection and potential payload delivery.

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/get-free-food-in-coin-master-game-hack In PDF document text
    • http://magnipsor.su/images/how-do-you-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-spin-hack-apk_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-fan_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-fan-club_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-free-download-pc_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-get-minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/apps-to-get-free-robux_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_off00004873.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4873 25532 bytes
SHA-256: 314869880d463fcf084d6e58663ca1fc45216e6fffe43c5229fd158a9d4c80d5
font_01_sfnt_off000083c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83C5 17884 bytes
SHA-256: 9e8203a117569d62088e0d60748e14aeb3e41c3201478a2ae4f054b44a03d8f3

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