PDF malware analysis — malicious · dd905b4e7a8c4c83

MALICIOUS

PDF

41.9 KB Created: 2021-05-14 11:33:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 0fdaf97d295b5f4a56757761c09bc3fb SHA-1: c7ba1e2e0a16d39f01dc467d4e4d54b16be1eb1c SHA-256: dd905b4e7a8c4c83151ebf3f2ccc2c2cba5c0e16606779723e796866b056ba94

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified by the PDF_URI and EMBEDDED_URL heuristics, that lead to websites promising free Robux and other game-related benefits. The PDF_SEO_LINK_FARM heuristic indicates a mass of external links, suggesting a link farm or scam operation. The ML_NYX_PDF_MALICIOUS classifier strongly supports the malicious nature of this PDF, likely used as a lure for phishing or a scam.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/roblox-studio-free-robux-game-hack
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/no-scam-free-robux_GM431946152.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-girl-hair-roblox_GM431946152.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/buy-robux-free_GM431946152.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-70-spin-link-today_GM406889139.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/roblox-earn-robux_GM431946152.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-free-spin-app-2021_GM406889139.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/earn-free-robux-for-roblox_GM431946152.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/websites-that-give-you-free-robux_GM431946152.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/minecraft-the-complete-handbook-collection_GM479516143.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-ipad_GM431946152.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/hack-to-send-gold-cards-on-coin-master_GM406889139.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-haktuts_GM406889139.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-free-pet-food_GM406889139.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-free-spins-link-download-free_GM406889139.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-spins-for-coin-master-2021_GM406889139.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/roblox-free-hair-boy_GM431946152.pdf
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/roblox-printables-free_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000049bb.bin` `7344478cdb03469bd82ac3e22704a8784416f466c9d5fbfecc407b17669a2e48`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x49BB	23976 bytes
`font_01_sfnt_off00008099.bin` `5fdc582f30145a96e28329e80bd45567e2bf6a1df475cf6931e13f95db6331fe`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8099	18484 bytes

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