Malicious PDF — malware analysis report

Static analysis result for SHA-256 7493e4549a0ad79c…

MALICIOUS

PDF

35.5 KB Created: 2021-07-04 08:16:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8c69f7be7b1c0273b5ab087d4dfbeda3 SHA-1: 450f48ea63dda0f5fabe72a27415ebc1519946f4 SHA-256: 7493e4549a0ad79c7e3c31740a657eec0089fd3e53955aea0b7daaa815043b5c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirectors and potentially malicious content, masquerading as game hacks and free generators. The primary redirector URL is http://netcdn.tw/app/479516143/minecraft-free-play-no-download-game-hack, which is designed to lure users into downloading further malicious content. No scripts were extracted, but the embedded URLs and the nature of the lures strongly suggest a phishing or malware distribution attempt.

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/minecraft-free-play-no-download-game-hack In PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/roblox-cheat-engine-hacks-64_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/money-hack-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/level-coin_GM406889139.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/roblox-free-eminem-clothes_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/how-to-donate-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/download-hack-roblox-pc_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/get-roblox-stuff-card-free_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/coin-master-free-spins-link-2021-iphone_GM406889139.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/free-robux-earn_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/how-to-get-free-robux-at-computer_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/cheat-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/free-robux-no-tasks_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/super-hero-adventures-online-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/free-roblox-games-that-you-dont-have-to-sign-in_GM431946152.pdfIn PDF document text
    • http://perpusfkip.upstegal.ac.id/repository/minecraft-free-android_GM479516143.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_off0000363d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x363D 21956 bytes
SHA-256: 70db086a47489861bc3c04847960ea862a5d7a8d2eb15e0127c265ad063934fa
font_01_sfnt_off0000667b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x667B 18912 bytes
SHA-256: 41a5609cb18ac90b1eab2a0592e2c4e81c85eced3afbdcfc55e2077aaaa40b1e

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