Malicious PDF — malware analysis report

Static analysis result for SHA-256 28e498f982a92a3e…

MALICIOUS

PDF

41.7 KB Created: 2021-04-22 15:45:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12
MD5: c53f3de7279689a6b2d4dd61c01a53f8 SHA-1: 11a79d76a812460798d781780830530a6f8e5506 SHA-256: 28e498f982a92a3ee1c883b80307079a6561a87e7f75b354fc5380e996a7e222
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a prominent call-to-action related to 'Roblox hacks' and 'free Robux', which is a common lure for phishing or malware distribution. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' specifically flags this type of content. The document directs users to URLs hosted on 'netsecure.pro' and 'gabrieliassociati.com', which are likely part of the malicious infrastructure. No scripts were extracted, but the presence of malicious links indicates an attempt to lead the user to a malicious site.

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/robloxgiveaways-top-hack-robux-game-hack PDF link annotation
    • https://gabrieliassociati.com/images/how-to-get-any-username-in-roblox-hack.pdfIn PDF document text
    • https://gabrieliassociati.com/images/hacks-for-prisone-life-roblox.pdfIn PDF document text
    • https://gabrieliassociati.com/images/roblox-jailbreak-hack-how-to-through-wals-hack.pdfIn PDF document text
    • https://gabrieliassociati.com/images/roblox-gmes-were-their-isa-in-game-money-cheat.pdfIn PDF document text
    • https://gabrieliassociati.com/images/free-roblox-gift-cards-2021-unused.pdfIn PDF document text
    • https://gabrieliassociati.com/images/magent-simulator-speed-hack-roblox-script.pdfIn PDF document text
    • https://gabrieliassociati.com/images/hack-to-find-youtubers-roblox.pdfIn PDF document text
    • https://gabrieliassociati.com/images/roblox-hack-2021-apk.pdfIn PDF document text
    • https://gabrieliassociati.com/images/free-robux-download-android.pdfIn PDF document text
    • https://gabrieliassociati.com/images/guuudd-info-free-robux-hack.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_off000040c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40C9 27680 bytes
SHA-256: 70714f0467ba427882c9bf5aca7b46da0f5557eb55afb47ef827f2f188bdec3f
font_01_sfnt_off00007df6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF6 19364 bytes
SHA-256: 30c6dd400bfa13f41ddc4a57f1935079a0a6b0d314c3e31675ea58bfc9ca26d6

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