Malicious PDF — malware analysis report

Static analysis result for SHA-256 579c42cd59c34c01…

MALICIOUS

PDF

44.5 KB Created: 2021-06-03 22:17:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0787df5768325f4ac5c1b2455ee70f8f SHA-1: ce40536a1bffe24b5b3ea39d487002a999cbe8eb SHA-256: 579c42cd59c34c0165deeb5c196bfa2c4efe2976532f61e754e0ba77c56b5776
82 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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-free-spin-daily-link-game-hack PDF link annotation
    • http://www.js100.com/uploads/ckeditor/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/websites-for-robux_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-daily-spin-link_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/robux_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-dinosaur-simulator-cheats_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-daily-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/2021-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-svg-images-free_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-hack-apk-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_004_off00005241.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5241 24644 bytes
SHA-256: b60c293ebe58ea29a479a111b0c0996beb74d65b35188c6d887d065697388d3f
font_01_sfnt_off00008aed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AED 18476 bytes
SHA-256: 2ce97cbb308bf5ba938525f141fd625062fba94b419d6e9602582d12aef06769

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