Malicious PDF — malware analysis report

Static analysis result for SHA-256 93e20496a16a3b79…

MALICIOUS

PDF

38.4 KB Created: 2021-05-20 20:06:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 4e03f905c7c00379de77075aa0cf6232 SHA-1: 38016f19a74155f3512d8d4c4a31e52e1bbc2ceb SHA-256: 93e20496a16a3b791c6b29c2dffb96cd61e9e322d6153f8534f00cf9beb431e8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links and a heuristic firing indicating it's a lure for game hacks or generators. The primary malicious URL identified is https://netcdn.xyz/app/479516143/minecraft-hacks-xbox-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a potentially malicious site, likely for malware distribution or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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/minecraft-hacks-xbox-game-hack PDF link annotation
    • http://www.woundcare4heroes.org.uk/uploads/files/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/free-roblox-gear_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/coin-master-hack-without-verification-2021_GM406889139.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_off00003638.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3638 29696 bytes
SHA-256: 9518b4f430cd598431d241b71a7c33d0935bc541dd0b0ff2f6ac473aa81f3545
font_01_sfnt_off0000749e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x749E 18476 bytes
SHA-256: 08d143bbdffcf64d63a65049f265cbb68e766144a512c2d0a1cb0386676e8729

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