Malicious PDF — malware analysis report

Static analysis result for SHA-256 3853e8fe46b8916f…

MALICIOUS

PDF

34.1 KB Created: 2021-07-06 04:12:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 151f1fd16f923aab8b3a59cd93899161 SHA-1: e97ae093c5ad9711f4b2904fb82f96b4299f47bc SHA-256: 3853e8fe46b8916f26c75242a39042091de5b95dafd28a2a5f6c888b90e62227
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a high-severity heuristic indicating it links to a game hack lure, specifically directing users to 'http://netcdn.tw/app/479516143/minecraft-realms-free-trial-game-hack'. This URL is likely intended to host a malicious payload or redirect to a phishing site. The document's content and embedded URLs strongly suggest a social engineering tactic to trick users into clicking the link, likely as part of a phishing or malware distribution campaign.

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/479516143/minecraft-realms-free-trial-game-hack PDF link annotation
    • http://lib.uho.ac.id/library/repository/free-roblox-exploits_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-robux-hack-uk_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/e-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-coins_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/pokemon-go-free-150_GM1094591345.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-spin-hack-app_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-hack-coin-master-spin-ios_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_off000032c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C0 21896 bytes
SHA-256: 2a7caf9288788e0f7c5321cf2cb1a23f29aaed0512066c18ba6663abae29172c
font_01_sfnt_off000062ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EA 18192 bytes
SHA-256: c84c0c9224042ec5c518f6bb4a140ed5e4ee0a480a1adfcfecce085ac4978d3d

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