Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7586300ff78dcee…

MALICIOUS

PDF

40.5 KB Created: 2021-04-23 08:39:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: c70530fc8963f9fc5dab281488746ebd SHA-1: 844d29768cbd16d80557acf651a02aa1d35f855f SHA-256: f7586300ff78dcee31d98ca2cb5e086e02cca0e977f88c35ede06c735926d82c
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 0.9941

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://netsecure.pro/app/431946152/tp-hacks-roblox-game-hack PDF link annotation
    • https://donrazvitie.ru/images/how-to-get-20-body-on-roblox-for-free.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-get-free-unlimited-robux-in-roblox.pdfIn PDF document text
    • https://donrazvitie.ru/images/inject-hack-roblox-com.pdfIn PDF document text
    • https://donrazvitie.ru/images/deleting-roblox-account-if-hacked.pdfIn PDF document text
    • https://donrazvitie.ru/images/hacker-roblox-video.pdfIn PDF document text
    • https://donrazvitie.ru/images/roblox-arcane-adventures-cheat-engine-windows-10.pdfIn PDF document text
    • https://donrazvitie.ru/images/flood-escape-2-infinite-jump-roblox-hack-pastebin.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-get-free-roblox-cash.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-vip-admin-commands-with-all-permissions-for-roblox.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-use-cheat-engine-64-on-roblox.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4115 25864 bytes
SHA-256: f0a92b81a6637ffbb96cddbca12e9eaceffe6f754d154321895a98289f997ea9
font_01_sfnt_off00007bfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BFB 18356 bytes
SHA-256: a06c844c090082dc389a2a499af49066e76fa1f1eca5a5334d39fb2bebbedba3

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