Malicious PDF — malware analysis report

Static analysis result for SHA-256 b48059f738d010fc…

MALICIOUS

PDF

38.4 KB Created: 2021-05-10 13:32:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c1048079445780efc35dc5a467a12d5b SHA-1: 0baa535245b3232470597f7372915b316d307ad6 SHA-256: b48059f738d010fce000e4a82330510472093f53946796a2e80cf1b2383df3b9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document uses a lure related to obtaining free items for games like Minecraft, directing users to a URL that appears to be a redirector for malicious content. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest a social engineering attack aimed at tricking users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9474

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/how-to-get-free-skins-in-minecraft-game-hack PDF link annotation
    • http://jdlwealth.com/images/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-get-robux_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/100-free-spins-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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003beb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BEB 25272 bytes
SHA-256: 541ff396699ffaaae46de159906265e9515dceaa8c2ffc6f2d73d886e26925cf
font_01_sfnt_off00007523.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7523 18044 bytes
SHA-256: 6cc59c28d5557832b1af72f7b0f143d8adff3a85e9aacd177c0586c4e7a11f45

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