Malicious PDF — malware analysis report

Static analysis result for SHA-256 959d8c1f6e7de402…

MALICIOUS

PDF

44.6 KB Created: 2021-04-29 23:10:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2837a59ae41807911e538bba4c3b2845 SHA-1: c43983f2cfbeea54c3bbf6781c8409e9c6171cce SHA-256: 959d8c1f6e7de402e19b4adab7d9d9ac55bf5ec866fee18f196455146303e784
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a game hack generator, which is a common lure for malicious content. The ML classifier strongly flagged this PDF as malicious. The embedded URLs suggest a phishing or malware distribution campaign targeting gamers.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9936

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-modify-stats-in-roblox-using-cheat-engine-game-hack PDF link annotation
    • https://lib.stie-yai.ac.id/repository/comoobtener-robux-usando-cheat-engine.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-colouring-in-pages-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-use-free-models-on-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/vido-for-free-robux.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-cheat-engine-downlaod.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/the-conquerors-cheats-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-roblox-you-can-play-online.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/online-free-robux-generator.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-free-mask.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-do-i-change-my-roblox-name-for-free.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 2

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
stream_003_off0000466f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x466F 29320 bytes
SHA-256: 0bbb33fb6ccaff621edccfe4037c567583d2b61aa4defef53c97619afbb2a18d
font_01_sfnt_off000088fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88FA 19592 bytes
SHA-256: 21c0ca1960514afc9d5ebb552a06a9adb977d327fbc2caabc4d3154af70f067d

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