Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a043320aca06bb…

MALICIOUS

PDF

42.0 KB Created: 2021-05-22 17:37:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 299ae79e1fa3dd18f6b3d41e798d01ad SHA-1: 8bca8e7cb69f4152460c67d583e1ba399f32be10 SHA-256: e5a043320aca06bbdb65ddce9c512e3beda1a2009015f392bed869c10373471e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase designed to trick users into visiting a URL that promises game hacks and free currency. The primary URL, https://netcdn.xyz/app/406889139/coin-master-daily-free-spins-and-coins-game-hack, is flagged as a high-risk redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to deliver a malicious payload or redirect to a phishing/scam site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7466

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/406889139/coin-master-daily-free-spins-and-coins-game-hack PDF link annotation
    • http://ilccanada.org/images/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://ilccanada.org/images/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • http://ilccanada.org/images/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://ilccanada.org/images/free-tiktok-fans-no-verification_GM835599320.pdfIn PDF document text
    • http://ilccanada.org/images/roblox-hack-2021_GM431946152.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_off000035db.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35DB 24404 bytes
SHA-256: 470d3c573814af6c1d0bdcc91fc43da63a583dca6c9dbd300070a9cc75f3703d
font_01_sfnt_off00006da9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA9 8676 bytes
SHA-256: e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468
font_02_sfnt_off00008233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8233 18480 bytes
SHA-256: 323fea871d3154f9ddf991b22fd859b77165b4ee4e2d03de0fe4666202988bbb

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