Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3088a8fad6fcf5a…

MALICIOUS

PDF

42.5 KB Created: 2021-05-16 09:53:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1cba3b0df08baca7a5426ecdbef85986 SHA-1: 5af2aa57d3cb12bb4b7e19ceb52a260f3d0e929e SHA-256: e3088a8fad6fcf5aacb4ce119cd18e8f6cb5317ae0a9f5a2ab9504f26458937a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at 'https://netcdn.xyz/app/406889139/coin-master-free-link-spin-game-hack'. The document body and heuristics indicate a lure for game-related cheats or generators, suggesting a phishing or scam attempt. No scripts were extracted, but the presence of embedded URLs and the nature of the lure point towards a social engineering attack.

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-link-spin-game-hack In PDF document text
    • http://henrikedmark.com/images/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
    • http://henrikedmark.com/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://henrikedmark.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://henrikedmark.com/images/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://henrikedmark.com/images/coin-master-cards_GM406889139.pdfIn PDF document text
    • http://henrikedmark.com/images/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • http://henrikedmark.com/images/free-roblox-templates_GM431946152.pdfIn PDF document text
    • http://henrikedmark.com/images/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://henrikedmark.com/images/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • http://henrikedmark.com/images/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://henrikedmark.com/images/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • http://henrikedmark.com/images/robux-free-co_GM431946152.pdfIn PDF document text
    • http://henrikedmark.com/images/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • http://henrikedmark.com/images/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • http://henrikedmark.com/images/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://henrikedmark.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://henrikedmark.com/images/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://henrikedmark.com/images/free-attacks-coin-master_GM406889139.pdfIn PDF document text
    • http://henrikedmark.com/images/earn-roblox_GM431946152.pdfIn PDF document text
    • http://henrikedmark.com/images/how-to-get-free-robux-on-mobile_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_off00004ab7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AB7 24956 bytes
SHA-256: 15df760d900c98f407f1a795388791dbaddb37241249d525603026a25dcb3e17
font_01_sfnt_off00008462.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8462 18056 bytes
SHA-256: 73446086b7970e4c311ea7edd0e96fe93bb69e7a29ec1c6c70349cef1a9e8050

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