Malicious PDF — malware analysis report

Static analysis result for SHA-256 54d8548cac1533ef…

MALICIOUS

PDF

34.1 KB Created: 2021-07-01 08:49:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5d91103681f7896c407268fc12710ad7 SHA-1: 8c65be4116fc8ffff4ea8e0e0e2ad529a6c2e099 SHA-256: 54d8548cac1533ef204f20c2be39cbf905cdbeb5945c24b203cac8e44e821150
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/hacks-roblox-dragon-ball-rage-game-hack PDF link annotation
    • http://suaedy-library.net/repository/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-script-speed-hack-v3rmillion_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-free-kins_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-legit-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-hack-roblox-for-robux-via-console_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-free-shirts-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/inquisitormaster-free-robux-website_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-build-to-survive-zombies-cheats_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-net_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/adopt-me-roblox-money-hack-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-hack-without-human-verification_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_off00002f5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F5C 22220 bytes
SHA-256: 844dfb1bf008f65eacfb7dfbdabf303eb5bdf7bd953ed39e17f4bf472656f915
font_01_sfnt_off000060b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B0 18824 bytes
SHA-256: 38208c67ac15678d5fecff60008e32bd5fb2cf738b4e86188c58f3a5a68966ea

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