Malicious PDF — malware analysis report

Static analysis result for SHA-256 d94ae37d20129b9d…

MALICIOUS

PDF

36.5 KB Created: 2021-05-23 08:10:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: cea6c91d20f57ba87209b5cecd52f0c9 SHA-1: c35a94e9e52d77879d383864f4b7aae2d3e2dd1c SHA-256: d94ae37d20129b9d167f66e47ff63779d72cfec193fa36b4beb275224f23db4b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to obtaining free game items, specifically for Minecraft, directing users to a suspicious URL. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and the embedded URL strongly indicate a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to lead the user to a malicious site, likely for credential harvesting or malware 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/479516143/how-to-get-minecraft-for-free-on-xbox-one-game-hack PDF link annotation
    • http://tuyensinh.utc2.edu.vn/uploads/img/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://tuyensinh.utc2.edu.vn/uploads/img/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://tuyensinh.utc2.edu.vn/uploads/img/files/coin-master-level-3_GM406889139.pdfIn PDF document text
    • http://tuyensinh.utc2.edu.vn/uploads/img/files/50-free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • http://tuyensinh.utc2.edu.vn/uploads/img/files/coin-master-free-spins-app-android_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
font_00_sfnt_off0000348a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x348A 24956 bytes
SHA-256: 30f009a624bb62b302f627a8d6910c73f9a71c58e2b6a86e9441eae0e37a0a45
font_01_sfnt_off00006cd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD4 18472 bytes
SHA-256: 63446f7755945d37ec8b97d22fda434cb08cbf4c61a02f7f94d2af605f03b611

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