Malicious PDF — malware analysis report

Static analysis result for SHA-256 b64f085a9ffd9c27…

MALICIOUS

PDF

22.0 KB Created: 2021-05-20 02:31:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 7f893f17ead36394f95bc8fa79c3d5dc SHA-1: 4d3808efd6f87bfe1116651b9083883d0d4c0202 SHA-256: b64f085a9ffd9c27cb6e39b85c80f451d5c7bc38f91b5c7dad4b7ec4c911077b
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 3

  • 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.
  • 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/835599320/tiktok-followers-free-2021-game-hack PDF link annotation
    • http://www.bestbist.com/assets/uploads/pages/files/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/pokemon-go-gameplay-free-online_GM1094591345.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/coin-master-free-spins-glitch_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/pro-pubg-xyz-uc-hack_GM1330123889.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/village-4-coin-master_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/minecraft-18-9-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/coin-master-free-link-spin_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/robux-generators-that-actually-work_GM431946152.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/free-robux-co_GM431946152.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/pokemon-go-free-username-and-password_GM1094591345.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/coin-master-hack-tool-ios_GM406889139.pdfIn PDF document text
    • http://www.bestbist.com/assets/uploads/pages/files/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text