Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4699c3c42b66b41…

MALICIOUS

PDF

41.6 KB Created: 2021-05-12 14:33:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 052734833e1dbba96eed3e2c1a7ad222 SHA-1: 1d21c9abfc1d0ea584543fcfcc8a01080bdb9516 SHA-256: e4699c3c42b66b41991b314e93bdc72bcefc7461ef425deed89335f8e7343b46
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting "free generators" and "game hacks" for popular games. The primary link, https://netcdn.xyz/app/431946152/more-robux-game-hack, is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering lure designed to lead users to potentially harmful content or further malware downloads.

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/431946152/more-robux-game-hack In PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/spin-coin-master_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-download-coin-master_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-roblox-shirt-templates_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/how-to-get-roblox-credit-for-free_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
stream_003_off00004529.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4529 26504 bytes
SHA-256: fb1610e1f5e1143b93189b40ba9cbbd74dede0753b6846420610213f54944baa
font_01_sfnt_off00008101.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8101 18044 bytes
SHA-256: 2cdd30725ec16b560af68fa44fbb44b377c0aea3ee608aeb4cb73b855c777d19

Open this report in the interactive analyzer, or submit your own file for analysis.