Malicious PDF — malware analysis report

Static analysis result for SHA-256 7348956b0db5707c…

MALICIOUS

PDF

35.1 KB Created: 2021-06-20 06:35:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 179aec1a64c95f6e7f3f9c66b9403efd SHA-1: 250c4ca53fe6ead72d09e5501ad3ab5c90d3f7d6 SHA-256: 7348956b0db5707cdec6aa4c02bf6e791c74d69388cf5d6f02193af0d0b3938a
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 0.9980

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 http://netcdn.co/app/406889139/gold-card-coin-master-free-game-hack PDF link annotation
    • http://jarviskeller.co.uk/media/storage/editor/files/roblox-players-for-free_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/roblox-free-to-play-game_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/hacks-for-roblox-2021-june_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/fortnite-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/roblox-attach-to-debugger-cheat-engine_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-robux-generator-links_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-robux-com_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-username-for-roblox_GM431946152.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_off0000331e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x331E 22984 bytes
SHA-256: 3ccadf30529cc1b7a68095bf48d7c9c543f1ef1287e8e4266a9117525e78c2ce
font_01_sfnt_off000066ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66CE 18244 bytes
SHA-256: 05cc7fd6a8f10c4dfba6ff40d9d3f4aef54fa3ecf28edf08d99c23ba0c86cb17

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