Malicious PDF — malware analysis report

Static analysis result for SHA-256 569c914c75ade1d2…

MALICIOUS

PDF

41.2 KB Created: 2021-05-21 03:17:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 90606c430eb7301d929c8ae1b8b1ae10 SHA-1: 19320740f6d69b961e0ba4a76ed2688ccbab1104 SHA-256: 569c914c75ade1d297d900c5a11339b9ade826c2e888e78e40915cf26b255006
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains lures for game hacks and free gift cards, specifically mentioning 'Robux Free Gift Card Org Hack'. It employs a fake CAPTCHA or human verification prompt to trick users into interacting with malicious links. The primary malicious URL identified is https://netcdn.xyz/app/431946152/robux-free-gift-card-org-hack-game-hack, which is likely used to deliver a secondary payload or redirect to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6959

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/431946152/robux-free-gift-card-org-hack-game-hack PDF link annotation
    • http://loriginedupain.org/images/tiktok-free-views-trial_GM835599320.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/how-to-get-free-coins-for-coin-master_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3408 26256 bytes
SHA-256: 8679e694fa96dc1c968a0a951d728b82143b4937b69373c54730767ddd96f1ed
font_01_sfnt_off00007099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7099 3608 bytes
SHA-256: 608f0dd4f6bfb6adbccec84228618ee8e4c9e09226d7330efb5300e499d1567f
font_02_sfnt_off00007d21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D21 19096 bytes
SHA-256: bb2bfd1b5c80cb1744cd57562806e4410c1e72fb9e1ed3dff7cfd9b3dcead9ac

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