Malicious PDF — malware analysis report

Static analysis result for SHA-256 334bf94597013727…

MALICIOUS

PDF

35.0 KB Created: 2021-06-18 08:27:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 183a514f23b1ba44ebf33226e22c1e90 SHA-1: d89da0c5c877336363d0a0e3dac97250733ca178 SHA-256: 334bf94597013727061c84168e5d992e8cf398ddc503e8e5a2f650d40dcb4c36
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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

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.co/app/431946152/adopt-me-roblox-cheat-codes-game-hack PDF link annotation
    • http://lib.vipklh.ru/repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-jump-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/rbx-free_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/hallows-eve-2021-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-hack-online-without-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox-account-hacker-website_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-spin-hack-pc_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-hack-roblox-booga-booga-on-ipad_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-spins-and-coins-on-coin-master_GM406889139.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_off00003120.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3120 22440 bytes
SHA-256: 398219fa204221d98e30d570527ebd56cd5cf02dc192a328916c12b9c49c759f
font_01_sfnt_off0000630d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630D 19304 bytes
SHA-256: c3ab71bb824be23032c023a42dbc30a83bc99fae414ba42b42e4336829f431b2

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