PDF malware analysis — malicious · 91b4ff1aa0db8a8b

MALICIOUS

PDF

34.3 KB Created: 2021-06-22 22:20:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 0e745e4ffd3c457ae24bb3bcf37be794 SHA-1: 739b2c09b885ba583ad239fa6bd0a622dca2990f SHA-256: 91b4ff1aa0db8a8bdfa39294733def8d5ee26ece51e8a91fc834f90a6e7c4703

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/case-clicker-hack-pc-roblox-game-hack PDF link annotation
- https://www.italisaitaly.com/uploaded_files/userfiles/files/www-robux-com_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/roblox-people-girl_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/all-roblox-eggs-2021-hack_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/free-robux-xbox-1_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/roblox-moderators_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/free-multiplayer-minecraft-server_GM479516143.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/roblox-beta-warships-hack_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/roblox-jailbreak-hack-download-pc_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/what-to-do-when-hacked-on-roblox_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_off000030a8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30A8	22148 bytes
SHA-256: `35c06d29313fbb7ea2984064801aa528eacb6059b30ed7ac35bee1f7eaa512b6`
`font_01_sfnt_off00006161.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6161	18932 bytes
SHA-256: `8dc7de989ef89aeccf217614d37bca794ebe0997ee26b5ebc5214e941f35d330`

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