Malicious PDF — malware analysis report

Static analysis result for SHA-256 63f54e428d263b8e…

MALICIOUS

PDF

34.3 KB Created: 2021-07-06 16:52:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fb2228c222971853865afd3d509a8489 SHA-1: 4e25eee8be6129fdb882ba252419f634cd31bfaf SHA-256: 63f54e428d263b8ee2c4067bc3cfd2fa6407bfe8445cdf096afa3a827551f3e6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to a known malicious domain, masquerading as a generator for game hacks. The document body and embedded links suggest a lure for users seeking in-game advantages, likely leading to a phishing or malware download site. The ML classifier also strongly indicated maliciousness.

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.tw/app/406889139/coin-master-free-gold-cards-game-hack In PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/roblox-forsaken-sword-3-hack_GM431946152.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/www-roblox-com-free-clothes_GM431946152.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/can-you-get-roblox-on-xbox-one-for-free_GM431946152.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/robux-claimer_GM431946152.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/free-games-coin-master_GM406889139.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/wurst-minecraft_GM479516143.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/is-it-possible-to-get-banned-for-cheating-roblox_GM431946152.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/free-apps-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/roblox-cheat-for-brick-bronze-all-pokemon_GM431946152.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/bloxorz-free-robux_GM431946152.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/windows-10-minecraft-free-with-java_GM479516143.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/wurst-download_GM479516143.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • https://gastronomytours.gr/ckfinder/userfiles/files/free-roblox-accounts-2021-march_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_off000032ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32AC 22172 bytes
SHA-256: 9b6bdc8c3455174440067677404872df310fa9426445cc2e283354b6ee3f773d
font_01_sfnt_off00006396.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6396 18244 bytes
SHA-256: 3eec5eb360bf5017ed215d45b36dc0030ce64a4e5d819b76440502fc1e4999a9

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