PDF malware analysis — malicious · b14368dc5115092b

MALICIOUS

PDF

44.6 KB Created: 2021-06-02 19:54:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 5b48f141f949f36e7cf014661bd45bf5 SHA-1: de7389627afe42ad58840435ce7b26d0aad3a688 SHA-256: b14368dc5115092ba5a4a06382f86c51e31ab6c47144e6731985613bed621e1d

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are structured as SEO-optimized links for game hacks. The presence of a 'download button' heuristic and the ML classifier's high confidence score indicate malicious intent. The document likely serves as a lure to download a second-stage payload from one of the provided URLs.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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/mejor-hacker-de-roblox-game-hack
- http://firesafetyservices.biz/images/how-to-hack-coins-in-archery-master-3d_GM406889139.pdf
- http://firesafetyservices.biz/images/online-coin-master-hack-here_GM406889139.pdf
- http://firesafetyservices.biz/images/aristois-minecraft-hack_GM479516143.pdf
- http://firesafetyservices.biz/images/coin-master-free-spins-link-hack_GM406889139.pdf
- http://firesafetyservices.biz/images/free-coin-master-spins-link_GM406889139.pdf
- http://firesafetyservices.biz/images/coin-master-spin-hack-link_GM406889139.pdf
- http://firesafetyservices.biz/images/best-site-for-free-coin-master-free-spin-link_GM406889139.pdf
- http://firesafetyservices.biz/images/minecraft-reach-hack_GM479516143.pdf
- http://firesafetyservices.biz/images/hackear-juego-coin-master_GM406889139.pdf
- http://firesafetyservices.biz/images/free-robux-without-downloading-anything_GM431946152.pdf
- http://firesafetyservices.biz/images/get-free-spins-for-coin-master_GM406889139.pdf
- http://firesafetyservices.biz/images/appsmobinfo-coinmasterhack-coin-master-hack_GM406889139.pdf
- http://firesafetyservices.biz/images/hacks-para-roblox_GM431946152.pdf
- http://firesafetyservices.biz/images/coin-master-free-spin-link-app_GM406889139.pdf
- http://firesafetyservices.biz/images/coin-master-free-spins-activegamer_GM406889139.pdf
- http://firesafetyservices.biz/images/free-robux-sites-that-work_GM431946152.pdf
- http://firesafetyservices.biz/images/roblox-hacks-and-cheats_GM431946152.pdf
- http://firesafetyservices.biz/images/robux-cheat_GM431946152.pdf
- http://firesafetyservices.biz/images/multiple-roblox-download-free_GM431946152.pdf
- http://firesafetyservices.biz/images/coin-master-daily-free-spins-link-2021_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_004_off00005023.bin` `359fc49556c66fb84afbef79f2098b293c4c5fae55e606cbd61a413b8405ef2d`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5023	25780 bytes
`font_01_sfnt_off00008a10.bin` `772fa98e4e9da36bb5d8f75d829259c722b6b16b4aaf1250a9de501cc65e04ae`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A10	18732 bytes

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