Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fbd248a01c90db3…

MALICIOUS

PDF

42.5 KB Created: 2021-05-14 07:37:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 74dc876acc2afc62aa0bb51c369e798f SHA-1: 35e30b44e485765f5755bd94b58a9701c4bc822f SHA-256: 7fbd248a01c90db3d7ceb316ae017a446735ccbb58be6ead023381a5f3ca53af
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded URLs and a visual download lure, strongly suggesting an attempt to trick the user into downloading a payload. The ML classifier also flagged this PDF as malicious with high confidence. The primary URL, 'https://netcdn.xyz/app/406889139/coin-master-free-food-game-hack', appears to be the intended destination for the lure.

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/coin-master-free-food-game-hack In PDF document text
    • https://itv-grabungen.de/images/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-reddit_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/robux-free-robux_GM431946152.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/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/roblox-games-with-free-vip-servers_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-app-real_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/minecraft-114-download_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/hack-spin-coin-master-2021_GM406889139.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_off00004543.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4543 27272 bytes
SHA-256: aa40614af4824dd1df5f923182f80f47af563ebd98b19ef1bd270737caa8399c
font_01_sfnt_off000084cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84CB 17884 bytes
SHA-256: dce98ab1a9f6331dfaabbdd57dacdba92c66b57249d10e9c2a1df39138c2a47b

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