Malicious PDF — malware analysis report

Static analysis result for SHA-256 128d7964a4a91671…

MALICIOUS

PDF

41.1 KB Created: 2021-05-14 10:10:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0282f7f3d09fe3526434679f5c776a5a SHA-1: d42cd3a3d607603ca71ad07f7621ca569348c5b0 SHA-256: 128d7964a4a916717891790f57eb1b07b027ae0a17aadc2be015e61a05bab673
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a known malicious redirector, designed to lure users into believing they can obtain free game currency or hacks. The primary malicious URL identified is https://netcdn.xyz/app/406889139/fb-coin-master-free-spins-link-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to redirect users to potentially malicious content or phishing sites, aligning with a spearphishing attachment tactic.

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/fb-coin-master-free-spins-link-game-hack In PDF document text
    • http://fortiusconsultancy.com/images/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/coin-master-rare-cards-hack_GM406889139.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/robux-hack_GM431946152.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/coin-master-mod-version-free-download-2021_GM406889139.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/give-free-robux_GM431946152.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/coin-master-hack-no-survey_GM406889139.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/minecraft-the-complete-handbook-collection_GM479516143.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/roblox-website-robux_GM431946152.pdfIn PDF document text
    • http://fortiusconsultancy.com/images/master-coin-free-link_GM406889139.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_off000047a5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47A5 24080 bytes
SHA-256: bcfe96c9991cc7622180f4f6dfe33fab9f5e124602fd39ceadca3e160e0c3a6a
font_01_sfnt_off00007e98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E98 18212 bytes
SHA-256: a228781abc07904b27a451649b4cbec605bc7d07320168c20386cc2d173a67dc

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