Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6826dd960e9b192…

MALICIOUS

PDF

47.8 KB Created: 2021-06-03 22:04:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0d13dbdbc1309b37aa5670820fd5173f SHA-1: aa03c7148007fda2e7167a707084bfc3315ecdb5 SHA-256: a6826dd960e9b19204a543b7bd6aecc6926d451547453e6859551fc8327d112d
82 Risk Score

Malware Insights

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

The PDF document contains multiple links and a visual call-to-action, explicitly luring users with promises of game hacks and free currency. The primary URL, https://netcdn.online/app/406889139/coin-master-apk-hack-32-game-hack, is directly associated with a 'game hack' lure. While no scripts were extracted, the PDF structure and embedded URLs strongly suggest a social engineering attack aimed at driving users to potentially malicious download sites or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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/406889139/coin-master-apk-hack-32-game-hack PDF link annotation
    • http://www.js100.com/uploads/ckeditor/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/pubg-uc-redeem-code-midasbuy_GM1330123889.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/best-free-catalog-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-mods-download-free_GM479516143.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_off000054b5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54B5 29928 bytes
SHA-256: 39cf7f803718330c7c8cd5413b8d85a19a5bafc8c7ebf9e624aaefd071ef4315
font_01_sfnt_off00009887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9887 18188 bytes
SHA-256: 77a1682a01033d3a7853ff83d75d16e151f0ccd18a0310b18392ae7d47f181cb

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