Malicious PDF — malware analysis report

Static analysis result for SHA-256 095689a66786f263…

MALICIOUS

PDF

42.6 KB Created: 2021-05-12 20:33:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 578ccb9e1af69a730cb300a0e929a0cc SHA-1: 814616c17b924b2feb350ef4e83f39724c57beb6 SHA-256: 095689a66786f2636e20b192579d1634c2a4f67b1432bcab1783b4e35c526e2a
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-free-spins-gratis-game-hack PDF link annotation
    • http://pustaka-smpn3tpi.com/repository/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/www-coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/free-draw-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-hack-spin-160-pro_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/unlimited-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/minecraft-java-edition-free-code_GM479516143.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ca5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CA5 24756 bytes
SHA-256: 19b39d6f928e6470f58de046858c43d5f5877727018e40fc56e9c59341761b1a
font_01_sfnt_off0000854e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x854E 17884 bytes
SHA-256: 61e0f30a550a552155c2db6a7959ee396d6a34ca680bb4676c065f633eb1cbfa

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