PDF malware analysis — malicious · d47aed5368d02cfe

MALICIOUS

PDF

34.5 KB Created: 2021-07-04 06:15:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: c346ef1e0a93e7d540d6271910810bf1 SHA-1: 3a62d60699d087831b0d87560751cf330e921cfb SHA-256: d47aed5368d02cfe6ffc4b628a361055c50e0b09e9dee9d090c7a197e9bf2ce8

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a 'link farm' heuristic firing, indicating a high volume of external links. The document body explicitly mentions 'Free Coins' and 'Free Robux', suggesting a lure for users interested in game cheats or hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of external links points towards a potential download or redirection to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/406889139/free-coins-for-flip-master-online-game-hack
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021-easy_GM431946152.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-instagram_GM406889139.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-coin-coin-master_GM406889139.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-master-hack-no-verification-no-signup_GM406889139.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/hacks-for-roblox-trackid-sp006_GM431946152.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-robux-download_GM431946152.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/roblox-hacked-com-2021_GM431946152.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-robux-easy_GM431946152.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/script-executor-roblox-free_GM431946152.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-2021_GM406889139.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/roblox-promo-codes-free-robux_GM431946152.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/facebook-coin-master-hack_GM406889139.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-master-free-spins-hack_GM406889139.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/minecraft-pe-mod-menu_GM479516143.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/hacking-games-on-roblox-with-neopde-engine_GM431946152.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdf
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-hack-bedwars-2-on-roblox_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off000031ec.bin` `7a81740de6f7d7b126e0af57df24740320969713cd5b212ac6e5dbf9b78be542`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x31EC	22648 bytes
`font_01_sfnt_off00006463.bin` `8cfa59634457458d339bb1e8bd2afefc03424978bac6d50b318448ff975bd272`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6463	18248 bytes

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