Malicious PDF — malware analysis report

Static analysis result for SHA-256 996032d62931180d…

MALICIOUS

PDF

32.5 KB Created: 2021-07-09 21:09:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: bb681ca7b35e865911651d48b3e21952 SHA-1: 79cfae992c6189c1b1aad79076ba75eb96c22c9b SHA-256: 996032d62931180dede4c72048336b8abfb166ee947e51c31473c5564544803a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for a game hack redirect lure, pointing to a malicious URL. The document body and numerous extracted URLs reinforce this theme, suggesting the file is designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the overall pattern indicates a phishing or social engineering attempt.

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.tw/app/431946152/roblox-catalog-free-game-hack PDF link annotation
    • https://vieclamjapan.com/upload/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/hack-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/paste-bin-animation-hack-script-roblox_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-get-free-robux-no-hack-2021_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-robux-app_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/roblox-register-free_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/robux-hack-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/features-roblox-robux-hack-apk_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2F 21320 bytes
SHA-256: 6e440007bd466c2899f635c1c639342a5db8f1a950f4ec8e7803387a5bcb73d3
font_01_sfnt_off00005ac1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC1 18752 bytes
SHA-256: a176fedfdd02b133d57120f96d854ce18c82b68e764468af89c6bae8c4c99442

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