PDF malware analysis — malicious · 1bbe92e90fef6e20

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 03:12:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: b7e4ef5cf5cc340e6423e5659ab6edb9 SHA-1: e91e2a1372e36564a4da7b79fba795db8dcf969f SHA-256: 1bbe92e90fef6e2002c811225dc3edfc45d0960ae6580e64a71f2ada44d2e059

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/flame-gg-free-robux-game-hack PDF link annotation
- https://5dollarslogo.com/ckfinder/userfiles/files/free-roblox-cheats-and-hacks_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/free-robux-no-details-needed_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/roblox-crc7-hack-admin_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/free-roblox-generator_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/how-to-get-free-roblox-com_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/roblox-assassin-hack-script_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/25-000-free-robux_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/easy-robux-hack_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/cheat-roblox-traversed-wall_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/how-to-get-free-robux-real-life_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/coin-master-gold-cards-free-link_GM406889139.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/flob-fun-roblox-hacker-generator_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/free-robux-without-human-verification-website_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/free-robux-no-human-verification-real_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/hack-roblox-players_GM431946152.pdfIn PDF document text
- https://5dollarslogo.com/ckfinder/userfiles/files/free-roblox-plaza-money_GM431946152.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_off00003078.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3078	22360 bytes
SHA-256: `ca2b7779109313a11373d9167e123eed2f1b1e605181a1b528e7e9e90c922436`
`font_01_sfnt_off00006250.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6250	19052 bytes
SHA-256: `0e5acbd67c2151e2d8a0f290c50b75584f3082951c962a1c817502256c0c0098`

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