PDF malware analysis — malicious · 8aa83976a8f50d75

MALICIOUS

PDF

32.6 KB Created: 2021-06-27 19:05:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 36a84c777e6f9774df6c364b6ff16fe2 SHA-1: cb5fb6008cc3d28856fa2ea221b5522c6ebc7c66 SHA-256: 8aa83976a8f50d7543bf4e71a9040a2b62ee8996a57ec012bbca046aa735e631

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 0.9824

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.co/app/431946152/free-roblox-credit-game-hack PDF link annotation
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/hacked-roblox-face-id_GM431946152.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/game-garudian-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/cheat-engine-roblox-mad-city_GM431946152.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/roblox-free-rubox_GM431946152.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/wurst_GM479516143.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/my-ex-boyfriend-cheated-on-me-roblox_GM431946152.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/best-free-roblox-outfitas_GM431946152.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/coin-master-free-spin-link-today-download_GM406889139.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/free-robux-com_GM431946152.pdfIn PDF document text
- https://www.trendsfashionusa.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021-twitter_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_off00002a99.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2A99	21784 bytes
SHA-256: `e8f9bebb0d6ad2f1ebf4f5a5943b9c05f12e6eae12aa863d01d34ec23965d14e`
`font_01_sfnt_off00005a9c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A9C	19048 bytes
SHA-256: `67fe356d6f832d553eb25737e5ec1128b0bbeacaf636c33d6372d4e8b1bf7011`

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