Malicious PDF — malware analysis report

Static analysis result for SHA-256 712514bdc94fcf64…

MALICIOUS

PDF

41.9 KB Created: 2021-05-17 17:54:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: ff5bd82e33ddc69f104757707493ad46 SHA-1: 6ca13140a9511aa02061a23c1d5bc94a49ab971e SHA-256: 712514bdc94fcf64c4a30f56a66a377f25d87da0e70d00eff7ddb13c54ad2892
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 0.9971

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/406889139/free-spins-and-coins-coin-master-links-game-hack PDF link annotation
    • https://vieclamjapan.com/upload/files/roblox-online-free_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/robux-earner_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/new-free-money-links-coin-master_GM406889139.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
stream_003_off000048f4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48F4 24532 bytes
SHA-256: 042b8f93a8d2d87dccc6494d0092997f46c0cab1c185553ce3bc9040e1c4cbac
font_01_sfnt_off00008161.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8161 18228 bytes
SHA-256: 69b56589237c96fdda83d18de15f7bb650a68c91d961ede8b08ce7eda2bec3b9

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