PDF malware analysis — malicious · e81ea0a80d627185

MALICIOUS

PDF

35.5 KB Created: 2021-06-18 16:48:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 35ea661d3eadd88d15c8ccb45dc5c170 SHA-1: 4f2c164cabee1e9ded09fc8ac8c0a1d19e37f702 SHA-256: e81ea0a80d627185b9bbb1bc3d0a5e1613fecc09b31cf69f591f98f1a51b6691

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.co/app/431946152/husky-roblox-obby-free-robux-game-hack PDF link annotation
- https://www.ktcart.co.in/uploaded_files/userfiles/files/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/top-free-commands-in-roblox-without-admin_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-robux-link_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/roblox-games-free_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-superhero-body-in-roblox_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-fan_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-shirt-roblox-youtube_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/how-to-get-free-robux-easy-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-download-gua-roblox_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-minecraft-website_GM479516143.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/spinuri-gratis-coin-master_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_off000031ae.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31AE	23264 bytes
SHA-256: `2fa69c9717776b0ae4925df5df13501d76b9abfbb66a644c2adb92669f127d31`
`font_01_sfnt_off000065f7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65F7	18956 bytes
SHA-256: `47dfc715cd37f4ca08be5227b7bba750f42e18cdc046e5f5361f19d10b6fd12e`

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