Malicious PDF — malware analysis report

Static analysis result for SHA-256 f419b05ebedf3254…

MALICIOUS

PDF

33.7 KB Created: 2021-06-29 09:37:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 755f8ec78911f2879a06dc6e5b63c194 SHA-1: b4a2ba0856ab8eea18e8756e1dabad5712eb1caa SHA-256: f419b05ebedf3254d1268090e19c3f5a4fb7f650f98a132115e5562d2eeb9035
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, that lure users with promises of free game currency or hacks. The primary link directs to http://netcdn.co/app/431946152/free-robux-2021-real-game-hack, which is associated with known malicious infrastructure. The document's content and embedded links strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-robux-2021-real-game-hack In PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/pubg-50-uc_GM1330123889.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/roblox-hack-painis_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/ulgames-resources-roblox-hack_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-robux-discord_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-hightspeed-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/50-robux-free-codes_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-roblox-gift-card-codes-workind-in-2021_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/114-4-hacks_GM479516143.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-robux-without-human-verification-on-ipad_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/cant-use-cheat-engine-on-roblox-roblxo-crashes_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/roblox-hack-tool-download-2021_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
font_00_sfnt_off00002dc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DC0 21868 bytes
SHA-256: 30699248ef468f25be4179a5217ba091e649c0f3b84640a5547a145638c1034a
font_01_sfnt_off00005e1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E1B 19192 bytes
SHA-256: a94d8ec93c06ef6adf8c282cd4b36ae260ffc140e7c611ae8d51610dc1d582b1

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