Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5ae229c63b80bb4…

MALICIOUS

PDF

42.3 KB Created: 2021-05-13 22:39:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a1a9f39349c579828234b3a1b70814ad SHA-1: a9e95a73e75d09e358adeac0879cda4ce06e90cd SHA-256: c5ae229c63b80bb4113aacca6c26fa81dcc0c4d44b48cfdd8b946b05a95f0cdb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that are flagged as malicious redirectors, specifically promoting 'game hacks' and 'generators'. The document body and extracted URLs suggest a lure for popular games like Minecraft and Roblox, aiming to trick users into visiting these malicious sites. No scripts were extracted, but the presence of numerous malicious links indicates a high likelihood of leading users to phishing or malware download pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/479516143/how-to-make-a-minecraft-client-game-hack In PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/minecraft-app-free-download_GM479516143.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/coin-master-free-download_GM406889139.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/latest-free-spin-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/robux-generator_GM431946152.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/minecraft-jar-free_GM479516143.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdfIn PDF document text
    • http://hometech.tw/ckfinder/userfiles/files/gamehunters-coin-master_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_off00004c24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C24 24916 bytes
SHA-256: 090fa94f80d5e7adc8377874653ea5e8a4c92caa851b9a69b876ead2651ae12e
font_01_sfnt_off0000838f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x838F 18116 bytes
SHA-256: 56ece9bcb07882a6659c5f7e1ce038c62729a3d0bc69e44cc409015ae3a9828f

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