Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9f317902dae13d6…

MALICIOUS

PDF

48.1 KB Created: 2021-06-11 06:24:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 48d071924b9ee4851eced6d77ccb2dc9 SHA-1: 51848856723efd3f93be1147139ce41fbbdba10e SHA-256: f9f317902dae13d644e90a2b551df5b62451ce41fc015f64c225f910ccdb21b9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a game hack lure to trick users into clicking a link. The primary link, 'https://netcdn.tw/app/431946152/hacker-para-roblox-2021-game-hack', redirects to a malicious website. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or social engineering attack aimed at driving traffic to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/hacker-para-roblox-2021-game-hack PDF link annotation
    • http://uilis.unsyiah.ac.id/ebook/repository/free-coin-app_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/minecraft-kill-aura_GM479516143.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/original-roblox_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/roblox-cookie-hack_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/village-3-coin-master_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-create-group-in-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/coin-master-hack-reddit_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/minecraft-svg-images-free_GM479516143.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/is-roblox-studio-free_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/is-minecraft-free-on-xbox_GM479516143.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005195.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5195 25836 bytes
SHA-256: 2b35a4d5f5f994c057842a77075ab8d832ba093e23397d793b19e5e0ec07ea60
font_01_sfnt_off00008df2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF2 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off000097a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97A1 18740 bytes
SHA-256: 620f9bb91eb9396a04593ddde8521fcedda2b4b35512c853ab325ea652726a16

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