Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a24956e2107c576…

MALICIOUS

PDF

45.5 KB Created: 2021-06-03 22:04:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 5fb9474e8295e2d0b25be945b1350250 SHA-1: fffe1d9b1bc099626180df4e096792de99543763 SHA-256: 6a24956e2107c576cb4596e2404afb489e46163a8e3b847de89a2855c5c04510
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 0.9864

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/roblox-animation-free-game-hack PDF link annotation
    • 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/free-likes-for-tiktok_GM835599320.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/como-hackear-coin-master-gratis_GM406889139.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/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-free-spin-game_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-glitch-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/hack-robux_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-free-spins-link-2021_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_off00004f96.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F96 27736 bytes
SHA-256: dd95a300bbe4ecc96d48088627c0d26002d77b699d499361e4fc48c92bd8f6fe
font_01_sfnt_off00008e6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E6D 18660 bytes
SHA-256: b5dbec7f61217db461a5bef1cadabd325bcbfefcdc2c560da77f401ca898493d

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