Malicious PDF — malware analysis report

Static analysis result for SHA-256 315ee291ab3a5c75…

MALICIOUS

PDF

35.6 KB Created: 2021-05-25 11:04:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5e26df7cfa5febafb62e69375745d938 SHA-1: 23a5b408be82f74d5041d7b68ccdf515f7c6aa55 SHA-256: 315ee291ab3a5c75ed79fd36121a136fb6a1866e6aa352a9ac12b14e7e2a1f71
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a prominent call-to-action lure related to game hacks and generators. The primary malicious URL identified is https://netcdn.xyz/app/479516143/create-minecraft-server-free-game-hack, which is likely intended to deliver a secondary payload or lead to a phishing site. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/create-minecraft-server-free-game-hack PDF link annotation
    • http://www.cosver.nl/images/hack-game-coin-master_GM406889139.pdfIn PDF document text
    • http://www.cosver.nl/images/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
    • http://www.cosver.nl/images/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://www.cosver.nl/images/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://www.cosver.nl/images/free-robux-no-human-verification-or-survey-2021_GM431946152.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_002_off000032fa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32FA 24908 bytes
SHA-256: 044575327f46ec8aa332e99515cedc0e5c7f4cc02765e00ef767ec38370868a5
font_01_sfnt_off00006bb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB2 17684 bytes
SHA-256: 739dfd09c5bedc98bb46a6c5718dfc06afa6391c84dc1b066bb71172f329b46c

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