Malicious PDF — malware analysis report

Static analysis result for SHA-256 74775420a83e7d42…

MALICIOUS

PDF

39.8 KB Created: 2021-04-25 19:51:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 90441f3a9ddecdd24e3f83e359bb1498 SHA-1: 7a15e54eb91c89677ad82944fec014ddda67ad71 SHA-256: 74775420a83e7d42abe880dc312548d0734742ad8ad7992092be4b0065adf661
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/free-roblox-codes-for-clothes-game-hack PDF link annotation
    • https://lib-stie.yai.ac.id/repository/free-robux-download-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-roblox-game-scripts.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-on-safari.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-blackberry-hack-download.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-hack-persons-account-on-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-jailbreack-money-hack.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/top-12-groups-on-roblox-that-give-free-robux.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/account-being-hacked-on-roblox-with-2-step.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-account-and-password-for-roblox-with-robux.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-jeruhmi-roblox.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off00004149.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4149 25056 bytes
SHA-256: 49df9ff5c6c7d97a460e8c44671ee6cbb7dc68e4490557cfaf9a3300a6a1a818
font_01_sfnt_off00007941.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7941 18392 bytes
SHA-256: 75dfbc81c0372543a84f4f40c51c9cf2d316f243d026603f34b71c3bdbe7775c

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