PDF malware analysis — malicious · 6281d2a268b57d31

MALICIOUS

PDF

42.0 KB Created: 2021-05-13 16:02:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 686bfb54b0dbd115e546327c265ae57c SHA-1: cd14b84b88e9cce98aadab099e844dc3fc2d2401 SHA-256: 6281d2a268b57d3177d597958c3f630cea945b34659c0e21f3f70b0e75e35cf8

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, many of which are part of a link farm, suggesting a deceptive scheme. The document body and extracted URLs indicate a lure related to 'free Robux' and 'free spins', likely a scam or a method to distribute further malware. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests this is not a legitimate document but rather a tool for SEO manipulation or traffic redirection to malicious sites.

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/microsoft-free-robux-game-hack
- https://www.gejovenlo.nl/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
- https://www.gejovenlo.nl/images/free-spins-coin-master-october-13-2021_GM406889139.pdf
- https://www.gejovenlo.nl/images/coin-master-cards-for-free_GM406889139.pdf
- https://www.gejovenlo.nl/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdf
- https://www.gejovenlo.nl/images/free-minecraft-texture-packs-java_GM479516143.pdf
- https://www.gejovenlo.nl/images/get-free-robux-now_GM431946152.pdf
- https://www.gejovenlo.nl/images/free-coins-coin-master-no-human-verification_GM406889139.pdf
- https://www.gejovenlo.nl/images/roblox-free-robux-com_GM431946152.pdf
- https://www.gejovenlo.nl/images/minecraft-anarchy-server-no-hacks_GM479516143.pdf
- https://www.gejovenlo.nl/images/coin-master-free-spins-2021-haktuts_GM406889139.pdf
- https://www.gejovenlo.nl/images/free-robux-generator-no-survey_GM431946152.pdf
- https://www.gejovenlo.nl/images/coin-master-free-spins-link-today-haktuts_GM406889139.pdf
- https://www.gejovenlo.nl/images/free-coins-on-coin-master-generator_GM406889139.pdf
- https://www.gejovenlo.nl/images/free-robux-codes-2021_GM431946152.pdf
- https://www.gejovenlo.nl/images/free-roblox-account-generator_GM431946152.pdf
- https://www.gejovenlo.nl/images/how-do-you-get-roblox-for-free_GM431946152.pdf
- https://www.gejovenlo.nl/images/mosttechs-coin-master-free-spins_GM406889139.pdf
- https://www.gejovenlo.nl/images/how-to-make-roblox-clothes-for-free_GM431946152.pdf
- https://www.gejovenlo.nl/images/free-spins-for-coin-master_GM406889139.pdf
- https://www.gejovenlo.nl/images/100-free-spins-coin-master_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004663.bin` `a3f41d05094412ceced314ccab22ee79e08a5eb99074dd5bfac6cc3185357452`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4663	26116 bytes
`font_01_sfnt_off0000813d.bin` `fc8058b2753a804d67589ad9e7736472a77fa92b8b7356ad3bc1ab00ed4087a5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x813D	18436 bytes

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