Malicious PDF — malware analysis report

Static analysis result for SHA-256 695c545983d54be8…

MALICIOUS

PDF

40.4 KB Created: 2021-05-04 09:24:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1cfad9c80c57eba283e88b8a22dbac62 SHA-1: ee473dbb930027466c96317166022ff1e5f383ed SHA-256: 695c545983d54be8e7340f682b69ec37f749328ac1ba510988bf79b6467b0603
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically disguised as 'game hacks' for Roblox. The primary malicious URL identified is https://netcdn.xyz/app/431946152/roblox-its-free-meme-game-hack. This indicates a social engineering lure designed to trick users into visiting potentially harmful websites. No scripts were extracted, but the presence of malicious links strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/431946152/roblox-its-free-meme-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-hack-website-no-survey.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-c4d-roblox-rig.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-hack-for-robuxs-on-robloxs.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-robux-2021-no-verification.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-paintball-on-roblox-with-cheat-engine.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-obby-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-the-labyrinth-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-unltimate-driving-cheats.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/hacker-alert-roblox-id.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-mobile-cheat.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
stream_003_off0000419f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x419F 25584 bytes
SHA-256: 84b8f36142d976577c5b95864976d0b21924680de15a77ab72c8dfef61fdaa96
font_01_sfnt_off00007b92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B92 18508 bytes
SHA-256: 27342f5bbf5413d78624ffc686885feed706a4e676f7a462f4235d68da01a049