Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7967797c5d1dd46…

MALICIOUS

PDF

42.3 KB Created: 2021-05-16 04:03:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: b31453bc0e583d887e9c915975e1d72a SHA-1: e897b1d07b604d419b750cb3435050b00cd9f499 SHA-256: b7967797c5d1dd46c9388b48562170eb6dcdff8fb2fe6b906aa3ee41c8458385
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to websites offering game hacks and generators, a common lure for malware distribution or phishing. The ML classifier also flagged this PDF as malicious with high confidence. The primary malicious URL identified is https://netcdn.xyz/app/406889139/free-spins-coin-master-app-game-hack, which is likely the initial landing page for a malicious payload or scam.

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/free-spins-coin-master-app-game-hack PDF link annotation
    • http://www.agri-tech.com.au/images/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/worst-client_GM479516143.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/coin-master-hacks-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/how-to-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/robux-free-co_GM431946152.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/how-to-get-free-snacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/free-spins-from-coin-master_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
stream_003_off00004968.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4968 26332 bytes
SHA-256: 2f0dc87733ca77b1fc58617cea82858ff7ffd9d2e1f0af41160381421385e496
font_01_sfnt_off00008430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8430 17884 bytes
SHA-256: ed1ea3c4e7635b9f65a5e0b6798c92341d7c1feababf17669f4466b6be8364ea

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