Malicious PDF — malware analysis report

Static analysis result for SHA-256 7914dab1c8ed5705…

MALICIOUS

PDF

42.5 KB Created: 2021-05-12 11:34:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d215b3d03730621f15fd3e750a4391e8 SHA-1: 9be34e18a77d7dda9db9f4d0d92a51702b13245f SHA-256: 7914dab1c8ed570579a5568ebf3234edcb305ac1c9d24ab6923cb64b3275edea
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free currency' lures. The primary malicious URL identified is https://netcdn.xyz/app/406889139/coin-master-free-cards-link-game-hack. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful sites, likely for further malware delivery or credential harvesting.

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-cards-link-game-hack In PDF document text
    • http://webstan.be/images/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • http://webstan.be/images/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/coin-master-free-spins-and-coins-generator_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_off000047ba.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47BA 25272 bytes
SHA-256: 6102f5bb6993d8cb7cd13af64368412ef9a8924efde13b67795293cf90833450
font_01_sfnt_off00008104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8104 19208 bytes
SHA-256: c1f400cc651f1a30f9626e1ff3867b5c3314a6198c5a89c6d6be93bb72ee64e6

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