Malicious PDF — malware analysis report

Static analysis result for SHA-256 24de4fdc21613d10…

MALICIOUS

PDF

42.0 KB Created: 2021-04-22 22:37:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: de92edc2482a5b67b27acc458b98e1b4 SHA-1: 16c6308073d2e2f1371ae54337878af84bff9009 SHA-256: 24de4fdc21613d108190ceabc1f5d87227ce8db791b496a9278775fbe2273251
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links and a visual call-to-action, explicitly identified as a lure for game hacks and generators. The primary link directs to a suspicious domain, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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/roblox-furk-blocburg-cheat-game-hack PDF link annotation
    • https://studentcareerinfo.com/images/mobile-roblox-hack-download.pdfIn PDF document text
    • https://studentcareerinfo.com/images/free-robux-generator-for-laptop.pdfIn PDF document text
    • https://studentcareerinfo.com/images/free-roblox-accounts-counter-blox.pdfIn PDF document text
    • https://studentcareerinfo.com/images/free-roblox-gift-cards-april-2021.pdfIn PDF document text
    • https://studentcareerinfo.com/images/how-to-be-a-cheater-in-roblox.pdfIn PDF document text
    • https://studentcareerinfo.com/images/only-working-way-to-get-free-robux.pdfIn PDF document text
    • https://studentcareerinfo.com/images/robux-gratis-hack-para-ordenador.pdfIn PDF document text
    • https://studentcareerinfo.com/images/free-robux-giver-2021.pdfIn PDF document text
    • https://studentcareerinfo.com/images/free-roblox-carf.pdfIn PDF document text
    • https://studentcareerinfo.com/images/free-auto-clicker-for-mac-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
stream_003_off000041c0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x41C0 27964 bytes
SHA-256: 8c887748e0aac468078494e2181311dc57eb1ec81b10502a6af17e1203934699
font_01_sfnt_off0000807e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x807E 19044 bytes
SHA-256: ef2a3cac72c0221d1e66d6abc01ec6e406c3997a82c5e6d283af752e31c0e6f9

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