PDF malware analysis — malicious · a226924c9bd5318c

MALICIOUS

PDF

34.4 KB Created: 2021-07-07 02:35:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 62bf95dec5919c912a35ec6ca6e35598 SHA-1: 18aee20553c027e09b4b1d4aaa3938850d8ead11 SHA-256: a226924c9bd5318c1919ec0b63141b7bbe79c09b3cf72cb6971d07fb01fb1545

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 http://netcdn.tw/app/431946152/roblox-hack-generator-game-hack PDF link annotation
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/play-minecraft-online-free_GM479516143.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/coin-master-gold-cards-free-2021_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/free-robux-on-website_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/robux-fun-hack_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/download-cheat-engine-for-roblox-winter-crisis_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/musical-chair-cheat-roblox_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/new-robux-hack_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/minecraft-pe-free-download-ios_GM479516143.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/free-cod-style-games-roblox_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-april-2021_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.

Filename	Kind	Source	Size
`font_00_sfnt_off00003066.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3066	22304 bytes
SHA-256: `405604ed63d20308531dfeca141e24a64046b424c52c09f6fccf555d1948a74a`
`font_01_sfnt_off0000620e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x620E	18760 bytes
SHA-256: `b79899937f6f59d67c0cc016ae9e295c0b2eeda93cfd6b0750b290eebb9c7341`

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