Malicious PDF — malware analysis report

Static analysis result for SHA-256 2482e3396da8d639…

MALICIOUS

PDF

36.7 KB Created: 2021-06-19 13:57:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 92abc6a4c24907eba6551d0e7e2c4d1d SHA-1: e1b63e7b4642bead43fc432032ad607904fc5af6 SHA-256: 2482e3396da8d6398deb0b52d26d7c85766a03d98e7ae830b74e6d30eb4226b7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple heuristics indicating it is a malicious redirector, specifically targeting users with lures for "free Robux" and "game hacks". The document body and embedded URLs point to a redirector hosted at http://netcdn.co/app/431946152/, which is designed to lead users to potentially harmful content. No scripts were extracted, but the overall pattern suggests a phishing or scam 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.co/app/431946152/free-robux-no-human-verification-no-offers-generator-game-hack In PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-cheat-in-jailbreak-roblox-2021_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/coin-master-money-hack_GM406889139.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/coin-master-hack-tool-india_GM406889139.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/robloxgroup-cf-free-robux_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/synapse-roblox-hack-2021-download_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/roblox-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/free-roblox-accounts-to-use_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/roblox-jailbreak-airdrop-spawn-hack_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/robux-maniac-robux-hack_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/free-cartoon-maker-online-roblox_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/free-robux-omg-com_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/robux-codes-generator-no-human-verification_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_off00003724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3724 22720 bytes
SHA-256: c019ec2dc303077cecb13cc817de2d7410c058c236753f0205ef56ec1c32e23f
font_01_sfnt_off000069b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B3 19336 bytes
SHA-256: 25c63a44ed084fe0db2b34a014b9589e4039c76879ad37d8779284d644a7a808

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