Malicious PDF — malware analysis report

Static analysis result for SHA-256 c38249c781ba3f0a…

MALICIOUS

PDF

45.6 KB Created: 2021-06-03 22:06:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 01fbaea44d641114b23ef6599094436a SHA-1: 240799b0dddff179261020eebf7fdf1da874cddd SHA-256: c38249c781ba3f0a86c0384dea44c14bd9f842286342221db7b28d519be51216
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a lure related to game hacks, directing users to a malicious URL. The embedded link, https://netcdn.online/app/431946152/free-roblox-hack-us-game-hack, is identified as a high-risk indicator. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to a potentially malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/431946152/free-roblox-hack-us-game-hack PDF link annotation
    • http://www.js100.com/uploads/ckeditor/files/card-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/pubg-uc-hack-app_GM1330123889.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/strucid-aimbot_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-hack-for-ios_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
stream_004_off00005402.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5402 26124 bytes
SHA-256: 17d1d300a886e8e7aaace4236d8a91cb13f35eaf7327bbeef3b88fb6ad2b3d38
font_01_sfnt_off00008f21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F21 18532 bytes
SHA-256: 0d34e375d8902d3efa285fd24fab142d003833d4205c7dc9a730d4d831678389

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