PDF malware analysis — malicious · 33c344134a399899

MALICIOUS

PDF

41.5 KB Created: 2021-05-13 09:33:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 3c34f22258d75089ab228dbe768f024c SHA-1: 97712d4fbaf5d87672e71a0f629c2df6da8f668f SHA-256: 33c344134a3998995d32a1c05de05255e0f4b2b96f3dd7db1bd27da39ee5651d

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous external links, many of which point to other PDF files, indicating a link farm or redirection scheme. The document body and extracted URLs suggest a lure related to 'Robux' or game hacks, likely to trick users into downloading further malicious content or visiting scam sites. The ML classifier strongly flagged this PDF as malicious.

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/how-to-get-more-robux-game-hack
- http://consultinggirona.es/images/coin-master-spin-free_GM406889139.pdf
- http://consultinggirona.es/images/fake-robux-codes_GM431946152.pdf
- http://consultinggirona.es/images/free-coin-spin-coin-master_GM406889139.pdf
- http://consultinggirona.es/images/free-apk-mods-coin-master_GM406889139.pdf
- http://consultinggirona.es/images/free-robux-websites-no-human-verification_GM431946152.pdf
- http://consultinggirona.es/images/coin-master-hacks-that-work_GM406889139.pdf
- http://consultinggirona.es/images/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdf
- http://consultinggirona.es/images/robux-withdraw_GM431946152.pdf
- http://consultinggirona.es/images/all-minecraft-handbooks_GM479516143.pdf
- http://consultinggirona.es/images/daily-coin-master-link_GM406889139.pdf
- http://consultinggirona.es/images/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdf
- http://consultinggirona.es/images/today-coin-master-free-coins-link_GM406889139.pdf
- http://consultinggirona.es/images/coin-master-free-coins-and-spins-2021_GM406889139.pdf
- http://consultinggirona.es/images/free-robux-games-on-roblox_GM431946152.pdf
- http://consultinggirona.es/images/coin-master-gift-link-hack_GM406889139.pdf
- http://consultinggirona.es/images/how-to-gift-robux-on-mobile_GM431946152.pdf
- http://consultinggirona.es/images/coin-master-100-spin_GM406889139.pdf
- http://consultinggirona.es/images/como-hackear-coin-master-gratis_GM406889139.pdf
- http://consultinggirona.es/images/coin-master-free-spins-link-march-2021_GM406889139.pdf
- http://consultinggirona.es/images/roblox-promo-codes-free-robux_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_003_off00004913.bin` `b42d5af8889c877d3f8181c65dab7dfa763da32b358eb13049394e84267e94ed`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4913	24100 bytes
`font_01_sfnt_off00007faf.bin` `b63754bab8a539e11eebb32f86c31dbe9ceb60be690df901f3a3ba32c84f6f1e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FAF	18312 bytes

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