PDF malware analysis — malicious · e17129a141630afc

MALICIOUS

PDF

34.9 KB Created: 2021-06-18 10:41:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: faa8bfe32ed85fbec289ea41ad69d6c7 SHA-1: ee8c6b83bbaa3ff47fcd5ab59d679e96a29c158b SHA-256: e17129a141630afc7c61203a9a4c84ca60da9a109065b6410a569afd784811dd

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, many of which are related to game hacks and cheats, suggesting a lure for users to download potentially malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of external URI heuristics further supports this assessment. While no scripts were explicitly extracted, the document's structure and embedded links indicate a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-xbox-360-gamertags-on-roblox-game-hack
- http://brinicombe.co.uk/images/robux-videos-with-no-hack-or-insect_GM431946152.pdf
- http://brinicombe.co.uk/images/how-to-hack-a-minecraft-server_GM479516143.pdf
- http://brinicombe.co.uk/images/coin-master-free-spins-link_GM406889139.pdf
- http://brinicombe.co.uk/images/online-roblox-hack-2021_GM431946152.pdf
- http://brinicombe.co.uk/images/coin-master-game-hack-link_GM406889139.pdf
- http://brinicombe.co.uk/images/spin-free-coin-master_GM406889139.pdf
- http://brinicombe.co.uk/images/roblox-password-hacker_GM431946152.pdf
- http://brinicombe.co.uk/images/how-to-get-free-robux-games_GM431946152.pdf
- http://brinicombe.co.uk/images/haktuts-2021-coin-master-free-spin-link_GM406889139.pdf
- http://brinicombe.co.uk/images/how-to-hack-roblox-accounts-easy-2021_GM431946152.pdf
- http://brinicombe.co.uk/images/earn-rbx_GM431946152.pdf
- http://brinicombe.co.uk/images/free-robux-mobile_GM431946152.pdf
- http://brinicombe.co.uk/images/coin-master-free-cards-link-2021_GM406889139.pdf
- http://brinicombe.co.uk/images/pubg-uc-and-bp-generator_GM1330123889.pdf
- http://brinicombe.co.uk/images/how-to-hack-on-roblox-games_GM431946152.pdf
- http://brinicombe.co.uk/images/coin-master-free-spins-and-coins-app_GM406889139.pdf
- http://brinicombe.co.uk/images/free-roblox-accounts-2021-with-robux_GM431946152.pdf
- http://brinicombe.co.uk/images/coin-master-free-spins-link-no-verification_GM406889139.pdf
- http://brinicombe.co.uk/images/free-spins-coin-master_GM406889139.pdf
- http://brinicombe.co.uk/images/free-robux-pastebin_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00002f9d.bin` `8fb25e995b4ac20cb4bff8781a9345d55d618b91343e1690cacbf0fc1981f66e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F9D	22648 bytes
`font_01_sfnt_off00006256.bin` `37d191e352f276e5f795ecb51e636dfefa153d9f913e66ec0b882c3c02644223`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6256	19344 bytes

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