Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a34358f03ef7462…

MALICIOUS

PDF

35.4 KB Created: 2021-06-26 02:47:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 961434d721828ea258920fc93d4bb415 SHA-1: d0989c963d666042e11e72015a1259fa9ba3bee9 SHA-256: 4a34358f03ef7462b3fa078b44d9f153c3d36d42ce4ea7d7ff342ff2e4e821fd
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/431946152/roblox-counter-blox-hack-script-2021-game-hack PDF link annotation
    • http://uilis.unsyiah.ac.id/ebook/repository/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-cash-codes-for-roblox-miner-haven_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-hacks-for-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/2021-roblox-hack-no-adfly_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/roblox-download-free-hp_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/roblox-free-stuff-2021_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/best-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-roblox-shirt-templates_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-download-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/robux-code-redeem-free_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/robux-simulator-lua-c-hack_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-roblox-accounts-that-work-2021_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/roblox-how-to-get-passes-for-free_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-robux-redeem-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/roblox-vehicle-simulator-money-hack-download_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-make-time-freeze-in-roblox-free-admin-hangout_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-spin-link-for-coin-master-game_GM406889139.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
font_00_sfnt_off00003103.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3103 22664 bytes
SHA-256: 921300920c0c60397c2f7779c92074e42be6f76aa8bd947ad6e590738ef466e7
font_01_sfnt_off000063b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B6 19596 bytes
SHA-256: aad801de41cb9b10277a4d3d7d06d9d70b9b9364e029598361701647be61b88f

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