Malicious PDF — malware analysis report

Static analysis result for SHA-256 f038c4cb01f6d158…

MALICIOUS

PDF

42.2 KB Created: 2021-05-20 02:21:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 508e17e08105b45d4359ea6fd8b0a013 SHA-1: a8db03900411df252893d31913d4790184ceee90 SHA-256: f038c4cb01f6d158a8c7b93b489ce999abe6b5455b6a094a8b7ecd9e1c4b738f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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/coin-master-free-spins-without-human-verification-game-hack PDF link annotation
    • https://dirigentigiustizia.it/images/tiktok-free-trial-likes_GM835599320.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/minecraft-free-online_GM479516143.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-download_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/robux-in_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/master-coin-hack-app_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-free-spin-today_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_off00004926.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4926 24416 bytes
SHA-256: 3e8b23d7ae51d7be81b18e4959f19f66cffdb04ba795637a26a73d2a0a9d3fac
font_01_sfnt_off00008113.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8113 18784 bytes
SHA-256: 3da53c4bcca0cb9d244bcc93ce65d6bea763e6ea7e90cffc4ca77df440db5a96

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