Malicious PDF — malware analysis report

Static analysis result for SHA-256 64410939697eac67…

MALICIOUS

PDF

35.8 KB Created: 2021-05-22 00:41:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 123da95ddd27b44689f1d3884b4242f9 SHA-1: c734b6f481004687328595ecfb5b1d446d171457 SHA-256: 64410939697eac67df902b9b4da30041531c4af905db505113e387f4c7e4b50e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free generators' and 'game hacks' to entice users to click on embedded links. The primary link redirects to a URL associated with malicious activity, suggesting a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and heuristics indicate it's designed to lead the user to a malicious site, likely for credential harvesting or further payload delivery.

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/835599320/how-to-get-tiktok-famous-free-game-hack PDF link annotation
    • http://yochin.org.tw/images/free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://yochin.org.tw/images/hack-coin-master-apk-32_GM406889139.pdfIn PDF document text
    • http://yochin.org.tw/images/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://yochin.org.tw/images/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://yochin.org.tw/images/free-coin-master-spins-link_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_off000034d6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34D6 23832 bytes
SHA-256: 0c3dcd1541be317a677d45160791b812902ec14a6df8aa5c1ed733ce4ae9d5ea
font_01_sfnt_off00006ab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB7 18248 bytes
SHA-256: 9d8c9ff8f23476e9e897d50e05ba1c89fe9a64794c9c08e4c2e4cb1c87253222

Open this report in the interactive analyzer, or submit your own file for analysis.