Malicious PDF — malware analysis report

Static analysis result for SHA-256 faf21a3647d28b8a…

MALICIOUS

PDF

34.2 KB Created: 2021-07-08 18:21:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3caf4ac1788f71c1f30a725d7f10f46d SHA-1: ec9281a880f645a19d9ae59f41f0e6a24291bf9a SHA-256: faf21a3647d28b8a91b8a388d3b72085e674af224e01acc6c4a14d1377449efc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a critical heuristic firing for a game hack redirect lure, pointing to malicious infrastructure. The document body and embedded URLs reinforce this, presenting a deceptive offer for game-related content. While no scripts were explicitly extracted, the nature of the lure suggests a potential for further malicious actions like downloading a payload.

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-setup-a-minecraft-server-for-free-game-hack In PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-hack-someones-account-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-free-spin-and-coins-fbid-links_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-get-everything-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-coin-master-gift-link_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/roblox-abs-free_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-free-500-spins-link_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-robux-and-limiteds-hack_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-get-your-hacked-acc-back-roblox_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/minecraft-beta-free_GM479516143.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/real-coin-master-hack_GM406889139.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_off0000315e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x315E 22044 bytes
SHA-256: 728ec12b41512155d09f45f61ce27bff450745e33d33122404a89a6fd505c587
font_01_sfnt_off000061f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F1 18592 bytes
SHA-256: 4b40ee072286608b3d74a0cb4ed346ad8a5977f91bfb22046a7a3c91dcad46b1

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