Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ea5b9259d842d92…

MALICIOUS

PDF

44.4 KB Created: 2021-05-14 19:37:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 5cdb956c44a55d39f57d7bf84c204ffb SHA-1: afdc5aefde4c97e4758a9844b9eb1e8c4cc29458 SHA-256: 9ea5b9259d842d92e37ded9c1be1a1d51ac519b5e03c48c838de2c18429c6a0b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 0.9980

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/431946152/best-way-to-get-free-robux-game-hack PDF link annotation
    • http://properteez.com/images/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • http://properteez.com/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://properteez.com/images/www-robux-us_GM431946152.pdfIn PDF document text
    • http://properteez.com/images/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • http://properteez.com/images/coin-master-hacks-iphone_GM406889139.pdfIn PDF document text
    • http://properteez.com/images/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://properteez.com/images/free-spins-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • http://properteez.com/images/free-fire-coin-master_GM406889139.pdfIn PDF document text
    • http://properteez.com/images/how-to-hack-m-coins-mcpe-master_GM406889139.pdfIn PDF document text
    • http://properteez.com/images/coin-master-free-spin-bonus_GM406889139.pdfIn PDF document text
    • http://properteez.com/images/www-rubux_GM431946152.pdfIn PDF document text
    • http://properteez.com/images/coin-master-free-spin-facebook-link_GM406889139.pdfIn PDF document text
    • http://properteez.com/images/google-moon-active_GM406889139.pdfIn PDF document text
    • http://properteez.com/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://properteez.com/images/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • http://properteez.com/images/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://properteez.com/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://properteez.com/images/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://properteez.com/images/install-free-game-coin-master_GM406889139.pdfIn PDF document text
    • http://properteez.com/images/roblox-hack-download_GM431946152.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_003_off000045a3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45A3 30804 bytes
SHA-256: 474bd03412ef02d81d96d563ea967f97fedd9235d90dd702764ea67f7bc2901e
font_01_sfnt_off00008a06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A06 18724 bytes
SHA-256: 0e67c697191027b8b448214b8413bf6f3ed0ff1165507b95d6a34aabcad7a82f

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