Malicious PDF — malware analysis report

Static analysis result for SHA-256 d62a8a02a1e84efe…

MALICIOUS

PDF

44.2 KB Created: 2021-06-13 22:59:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 29c738bcef371419156ac23b9226f79f SHA-1: ead0a6164f9f3d56458c28048ac1aeb53784d8aa SHA-256: d62a8a02a1e84efea669ac8137f3123a4c4e9de77432065162c248fabbf7adff
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/free-robux-hack-quick-and-easy-game-hack PDF link annotation
    • http://digilib.ulm.ac.id/pusat/repository/mcpe-com_GM479516143.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/all-coin-master-spin-link-and-free-download_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/descargar-roblox-hack-version-2385-apk_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/roblox-free-admin-commands-list_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/download-coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/freerobux-hack-us_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-spins-and-coins-com_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/how-to-block-someone-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/roblox-elemental-battlegrounds-hack-diamonds_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/roblox-how-to-hack-peoples-badges_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/roblox-hackers-list_GM431946152.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_off000048be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48BE 28184 bytes
SHA-256: 3d17c23c7999f5b06d83c095a77d878b456114d24a5e8526c412b081f2429c68
font_01_sfnt_off00008843.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8843 19044 bytes
SHA-256: b14c3a18673e982cd788d39f06732d03c331f75297793786eaa61e389546f462

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