Malicious PDF — malware analysis report

Static analysis result for SHA-256 643bc342da395005…

MALICIOUS

PDF

34.2 KB Created: 2021-06-28 02:33:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3c36a9de3d9307908a958fedf5bb98e3 SHA-1: 6d671bd2ff7a07cd4120f1ced68d5ca67d665299 SHA-256: 643bc342da3950054736e3c7793972f09cdd34459edbb78c633a62d35db5ac9f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and generators to entice users. It contains links to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. The ML classifier also strongly indicated maliciousness, supporting the conclusion that this document is part of a phishing or malware distribution campaign.

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/hacks-roblox-cambiar-nombre-game-hack In PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-robux-without-password-or-email-website_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/coinmasterfree_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-hack-levels-in-roblox-naruto-final-bond_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-roblox-clothes-and-hair_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-hack-mcpe-master-coins_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/treasure-hunt-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-get-free-robux-on-macbook-air-2021_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-roblox-money_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-hack-followers-on-roblox_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-minecraft-skins-xbox-one_GM479516143.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-robux-bloxawards_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-get-free-robux-without-downloading-apps-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_off00003054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3054 21820 bytes
SHA-256: 4289a6da3d55b51fae3a9679dcab6ce49b78893c963de7e4e315d8dd9905047c
font_01_sfnt_off00006078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6078 19036 bytes
SHA-256: f1b3fbf980ce7b7fed3aff6c7d221e9175327debb028ccf5affc8f6532ea4ae0

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