Malicious PDF — malware analysis report

Static analysis result for SHA-256 615528055e0a69fc…

MALICIOUS

PDF

34.8 KB Created: 2021-07-05 07:42:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8e98dd418ee744d6c8a39d127ff2f41a SHA-1: 867d4e743b785deb23405cbfd444bd847d95450e SHA-256: 615528055e0a69fc9232db4ce829bd7db861c535916a05d3b81801653c051d06
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing indicating it links to a game hack redirector, specifically targeting users with promises of free game currency or hacks. The embedded URL, http://netcdn.tw/app/431946152/dominus-roblox-free-game-hack, is the primary indicator of this malicious lure. While no scripts were directly extracted, the nature of the lure and the ML classification suggest a malicious intent to redirect users to a potentially harmful site.

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/dominus-roblox-free-game-hack PDF link annotation
    • http://digilib.unla.ac.id/repository/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/mcpe-master-coins-hack-download_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-game-free-download-for-pc_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-raid-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-daily-spins-today_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-da-hood-hack-download_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/june-29-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-freebies_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/hack-para-ser-vip-en-flee-the-facility-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-free-skins-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_off00003082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3082 22388 bytes
SHA-256: 8ecdc61399b6a77b4bdfffc75a92489956494dcdeced32f3f4fb60cd79b2e956
font_01_sfnt_off00006235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6235 19340 bytes
SHA-256: 2baa4a424f72436de07ce77037064002e5e6fbd5f5b1d91ab01ade787eb1f944

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