PDF malware analysis — malicious · efb87e746b5799a0

MALICIOUS

PDF

42.2 KB Created: 2021-05-13 19:20:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 8a2a84f06bda49a9356ca271786c978b SHA-1: 7f8fb4f2c15c3ec7875f228340104691aaf55291 SHA-256: efb87e746b5799a08376614a0d63be2b200a639e6d83604aeaf5f331b4027e81

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, identified as a link farm, pointing to various game-related cheat and hack pages. The ML classifier strongly flagged this PDF as malicious. The presence of embedded URLs and the overall structure suggest an attempt to direct users to potentially harmful content or downloads.

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/406889139/free-coins-on-coin-master-without-verification-game-hack
- https://bazilikum.com/images/coin-master-hack-apk-link_GM406889139.pdf
- https://bazilikum.com/images/coin-master-free-spins-link-download-today_GM406889139.pdf
- https://bazilikum.com/images/haktuts-coin-master-free-spin-link_GM406889139.pdf
- https://bazilikum.com/images/coin-master-mod-free-download_GM406889139.pdf
- https://bazilikum.com/images/how-to-host-a-minecraft-server-for-free_GM479516143.pdf
- https://bazilikum.com/images/coinmaster-links_GM406889139.pdf
- https://bazilikum.com/images/coin-master-hack-https-coinms-net_GM406889139.pdf
- https://bazilikum.com/images/how-to-get-free-robux_GM431946152.pdf
- https://bazilikum.com/images/how-do-we-get-free-robux_GM431946152.pdf
- https://bazilikum.com/images/free-minecraft-hosting-24-7_GM479516143.pdf
- https://bazilikum.com/images/how-to-get-free-robux-hack_GM431946152.pdf
- https://bazilikum.com/images/coin-master-card-hack-2021_GM406889139.pdf
- https://bazilikum.com/images/how-to-get-free-spins-coin-master_GM406889139.pdf
- https://bazilikum.com/images/coin-master-free-spins-link_GM406889139.pdf
- https://bazilikum.com/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdf
- https://bazilikum.com/images/robux-rewards_GM431946152.pdf
- https://bazilikum.com/images/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdf
- https://bazilikum.com/images/how-to-earn-robux-for-free-2021_GM431946152.pdf
- https://bazilikum.com/images/coin-master-game-hunters-club_GM406889139.pdf
- https://bazilikum.com/images/roblox-how-to-get-free-clothes_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_off0000491e.bin` `be1392d30a084e33bfc658a329c1ce021da78092cfc6cf5080d7b25ceda04ab6`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x491E	24920 bytes
`font_01_sfnt_off00008276.bin` `68b7b6090c4e78ffeabfd8a702a632607944da3198f02fce58e875796570fee7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8276	18348 bytes

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