Malicious PDF — malware analysis report

Static analysis result for SHA-256 d71593eacbffe231…

MALICIOUS

PDF

41.0 KB Created: 2021-05-13 17:02:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2dc16fecd2c882678aaa8dce433a9f21 SHA-1: 260c183d687485fc693ef6f853075c6cc84de5c8 SHA-256: d71593eacbffe231351aa0bc6b20422d2af5479d9a52939540d358b002bc8af6
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/coin-master-spin-free-game-hack PDF link annotation
    • https://www.zagorjeadventureteam.hr/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/play-full-version-of-minecraft-for-free-no-download_GM479516143.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/how-to-get-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/toolbox-for-minecraft-pe-ios_GM479516143.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/get-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/rbxfree-com-free-robux_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
stream_003_off000047c4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47C4 24196 bytes
SHA-256: 819eaf61dfaa2b2ef444d75482a9a606fcdaffc49ee66f6214fdcc293f63dd47
font_01_sfnt_off00007ee2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE2 17884 bytes
SHA-256: f64f8d8cd546afe107dcd88d9ce91258665e3d619825ef5ba403a2abc0c27184

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