Malicious PDF — malware analysis report

Static analysis result for SHA-256 99e595bdcc382791…

MALICIOUS

PDF

35.0 KB Created: 2021-06-20 18:55:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 48b4fa57727a04f20d2c4d1c61fd660c SHA-1: 51c82a7fef64bfa7e4de5fac00e690c53e18ac64 SHA-256: 99e595bdcc382791ba2d72611618f9f4bacdb90a1a64a4c43041959afe3af11f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links to websites offering game hacks and free in-game currency, such as Roblox and Minecraft. These links are likely intended to lure users to malicious sites that could host malware or phishing pages. The ML classifier strongly indicated maliciousness, and the presence of multiple game-related lures reinforces this assessment.

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/how-to-hack-roblox-go-through-walls-game-hack PDF link annotation
    • http://nebraskahospitalityhalloffame.com/images/free-robux-live_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/cheat-table-roblox_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/hacks-para-roblox-hospital-roleplay-30_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/red-roblox-shorts-free_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-explorer-hack-2021_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-free-bubble-gum-privat-server_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-hack-no-generator_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-shoulder-accessories-roblox_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_off0000321f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x321F 21988 bytes
SHA-256: f2a0b2324bfa46f8ede534233117c527d37fb19613e0d4a9997e65e1dbfd283b
font_01_sfnt_off000062b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B6 19324 bytes
SHA-256: 8b592edb545ead191f5e95cbc5ac4db0aea3f6686ac837b7a63330dd9915e644

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