PDF malware analysis — malicious · 3df230ba67c5e4a7

MALICIOUS

PDF

47.7 KB Created: 2021-05-31 19:56:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 90ba0016de628b868c4336e3f23aea0f SHA-1: d15597fc0df702864e688c338506545e97e2d82f SHA-256: 3df230ba67c5e4a7a95ad7f686cc523f5c5065921180e12f8c5315f54c5f8f11

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains numerous external links, many of which are part of a link farm designed to appear as legitimate content, such as 'how to get robux for free'. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of these links, suggesting a malicious intent to direct users to potentially harmful websites. The ML classifier also flagged the PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9769

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/how-to-get-2021-robux-for-free-game-hack
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-do-you-get-free-robux_GM431946152.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-robux-scams_GM431946152.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-robux-gift-card-codes-2021_GM431946152.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-to-play-minecraft-for-free-on-pc_GM479516143.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/buy-robux-for-free-2021_GM431946152.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/coin-master-free-stuff_GM406889139.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-gear-on-the-roblox-catalog_GM431946152.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/robux-hack-tools_GM431946152.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/coin-master-free-spins-for-today_GM406889139.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/roblox-robux-hack-2021_GM431946152.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-robux-hack-no-human-verification_GM431946152.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/coin-master-free-coins-link_GM406889139.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-to-get-free-coins-on-coin-master_GM406889139.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/minecraft-bedrock-edition-free_GM479516143.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-to-create-a-minecraft-server-for-free_GM479516143.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdf
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/minecraft-education-free_GM479516143.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000518a.bin` `8124339832c368579effcbf8d9f59111086e925844e6cc27332e6d2f0509b6f0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x518A	26824 bytes
`font_01_sfnt_off00008c89.bin` `94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C89	2824 bytes
`font_02_sfnt_off00009638.bin` `6e9c0eecafd635f65838c8dbfb1e23e8457e4c9239d4b33e445d621fd980b18f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9638	18684 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.