Malicious PDF — malware analysis report

Static analysis result for SHA-256 7130fa46927a976a…

MALICIOUS

PDF

38.4 KB Created: 2021-05-23 06:09:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: e28aaaabc5d1614f67c7e61c4a9a1bd6 SHA-1: e4981275b0b5b2f7d420dcb043ca4ec12aa9b617 SHA-256: 7130fa46927a976a0ab67281d43ee92e008dd5adf87724088a6181caf5a889b9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links and a heuristic firing for a 'free generator / game hack' redirector lure, specifically mentioning Minecraft. The document body also contains text related to obtaining Minecraft for free and a call to action. The primary malicious URL identified is https://netcdn.xyz/app/479516143/how-to-get-minecraft-for-free-on-pc-game-hack, which is likely used to deliver a second-stage payload or redirect to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7268

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://netcdn.xyz/app/479516143/how-to-get-minecraft-for-free-on-pc-game-hack PDF link annotation
    • http://eurosystemssrl.it/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • http://eurosystemssrl.it/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://eurosystemssrl.it/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://eurosystemssrl.it/images/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003318.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3318 24656 bytes
SHA-256: f130b739719729e615a3ebdcd7f22670e1365ae7c68a4520909d0c5697311179
font_01_sfnt_off00006b8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B8D 2892 bytes
SHA-256: c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
font_02_sfnt_off00007577.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7577 18028 bytes
SHA-256: b9422edf84f92072c73e95211b34a92c0a0e69f845a714fee2d613fe1b4264b0

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