Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a614567260cd137…

MALICIOUS

PDF

35.4 KB Created: 2021-07-04 00:30:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c55b46196129778e2392d9b8e3d43a19 SHA-1: 76e87a31fa980b4fe2622a40ecd6456211846e00 SHA-256: 3a614567260cd137eaad89e70b417cdae6ee9cb2ec5695f6a5290613c8dae22a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to a URL that is likely malicious. The document body also contains this URL, reinforcing the lure. The presence of embedded URLs and a visual download button heuristic further support the malicious intent of directing users to external, potentially harmful, content.

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/479516143/how-to-get-minecraft-pe-for-free-game-hack In PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/roblox-dll-hacking_GM431946152.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/jailbreak-robloxcom-cheats_GM431946152.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/roblox-lego-hacking-download_GM431946152.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/free-items-from-roblox_GM431946152.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/coin-master-free-food_GM406889139.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/free-tiktok-bots_GM835599320.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-hacktman_GM406889139.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-on-a-ipad-2021_GM431946152.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/www-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/free-robux-site_GM431946152.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/can-you-use-cheat-engine-on-roblox-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_off000035e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35E0 22544 bytes
SHA-256: de25ba3c0eabe2a609b593ae842304f50ab2a29abd56d8df80d31dbe29948c6b
font_01_sfnt_off000067e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E5 18316 bytes
SHA-256: 6114a01aa91a9ce609c62e178085c324d68f94fc89260c1d3226e785dda6fa61

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