Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe9c3af09c1bc9e6…

MALICIOUS

PDF

43.3 KB Created: 2021-06-11 10:52:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ee20d5bd6ac23c4c2638e96911214537 SHA-1: 1263df5c05eb5f62ad8a3e72185f987e7427742b SHA-256: fe9c3af09c1bc9e60b398d18d23c7b576c250ce127c405e7a30185f4059f53d5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for linking to a 'free generator / game hack' redirector, specifically 'https://netcdn.tw/app/431946152/dominus-in-roblox-free-game-hack'. This lure is designed to trick users into downloading malicious content or visiting phishing sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a common social engineering tactic to deliver a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/dominus-in-roblox-free-game-hack PDF link annotation
    • http://3dmedicus.ru/images/reddit-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://3dmedicus.ru/images/new-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://3dmedicus.ru/images/roblox-rules_GM431946152.pdfIn PDF document text
    • http://3dmedicus.ru/images/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://3dmedicus.ru/images/how-to-use-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://3dmedicus.ru/images/roblox-old-avatar_GM431946152.pdfIn PDF document text
    • http://3dmedicus.ru/images/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • http://3dmedicus.ru/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://3dmedicus.ru/images/spin-coin-master_GM406889139.pdfIn PDF document text
    • http://3dmedicus.ru/images/is-minecraft-free_GM479516143.pdfIn PDF document text
    • http://3dmedicus.ru/images/coin-master-free-spins-link-facebook-page_GM406889139.pdfIn PDF document text
    • http://3dmedicus.ru/images/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://3dmedicus.ru/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://3dmedicus.ru/images/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • http://3dmedicus.ru/images/free-robux-co_GM431946152.pdfIn PDF document text
    • http://3dmedicus.ru/images/free-easy-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://3dmedicus.ru/images/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://3dmedicus.ru/images/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://3dmedicus.ru/images/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://3dmedicus.ru/images/martian-lettuce-coin-master-free_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_off00004c8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C8F 25292 bytes
SHA-256: 89349e81116127700ea69ad918ab8aff6e6c532380358f5884a901051c2fe301
font_01_sfnt_off0000859a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x859A 18636 bytes
SHA-256: 44db6b7a8e6b88e77eefe4d82a0b6b8a75743271c8468732cd6b50592eff69a0

Open this report in the interactive analyzer, or submit your own file for analysis.