Malicious PDF — malware analysis report

Static analysis result for SHA-256 319c0925be8eeb58…

MALICIOUS

PDF

40.6 KB Created: 2021-04-28 23:35:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: beeaf7420697c315564454378b03f648 SHA-1: 22d18ca280b0e99ad2d45d9317a7e74c1976523a SHA-256: 319c0925be8eeb58fc9c738e3498afe7c57afde04784d73806cb5e53a84b9a1a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/how-to-hack-easy-2021-roblox-game-hack PDF link annotation
    • https://lib-stie.yai.ac.id/repository/how-to-cheat-on-ramboredkill-in-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/hidden-code-in-inquisitor-master-video-for-free-robux.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-do-u-get-robuxs-for-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-hack-stats-in-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-btools-hack-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-lumber-tycoon-2-money-hack.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-give-yourself-robux-with-cheat-engine.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-hack-guis.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/use-the-rarest-item-on-roblox-for-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-hacks-for-tablet.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003fb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FB6 26308 bytes
SHA-256: d918823dbd64fded31e2ded6641bdefed1cb427e158087d1f4e3c1ab4519d616
font_01_sfnt_off00007aab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AAB 18928 bytes
SHA-256: 44fa49f246bfde6d1634c48bc309bb6362e307d16bed7ec93c09f480ccc672a3

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