PDF malware analysis — malicious · 9e64925c7f0fc686

MALICIOUS

PDF

34.1 KB Created: 2021-06-28 03:13:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 046d2013a5cdfac24e668c1f47978cea SHA-1: 7ae2c47ed48893560eb6b1884d014ad634f018a0 SHA-256: 9e64925c7f0fc686573971abab4730448b2075c1667c3d0bc22a6c16308549e0

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a link farm, strongly suggesting a phishing or scam attempt. The document body and extracted URLs promote 'free Robux' and 'Coin Master spins', indicating a lure for users seeking in-game advantages. The presence of external URIs and a high ML classifier score confirm the malicious nature of the PDF.

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/site-free-robux-game-hack
- https://lib.stie-yai.ac.id/repository/how-much-you-get-banned-for-hacking-roblox_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/free-robux-no-verification-at-all_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/how-to-earn-robux-for-free-2021_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/coin-master-hack-spins-free_GM406889139.pdf
- https://lib.stie-yai.ac.id/repository/100-free-spins-for-coin-master-2021_GM406889139.pdf
- https://lib.stie-yai.ac.id/repository/roblox-free-robux-no-human-verification_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/pokemon-go-free-pokecoins-no-human-verification_GM1094591345.pdf
- https://lib.stie-yai.ac.id/repository/free-spins-on-coin-master-link_GM406889139.pdf
- https://lib.stie-yai.ac.id/repository/roblox-lua-script-snow-resort-hack_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdf
- https://lib.stie-yai.ac.id/repository/free-robux-generator_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/your-free-trial-roblox-meme_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdf
- https://lib.stie-yai.ac.id/repository/roblox-hack-generator_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/coin-master-hacks-for-iphone_GM406889139.pdf
- https://lib.stie-yai.ac.id/repository/how-to-get-free-robux-hack-2021_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/free-robux-2021-no-human-verification_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/how-to-get-free-robux-hack-website_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/what-if-roblox-was-not-free_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_off00002eac.bin` `755ffefd63318c986b964f22ffd5ae35065898d4ba4be69091cae7aeea3c10c0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EAC	22336 bytes
`font_01_sfnt_off0000604d.bin` `c985a241d7dd001b22129e6a559402eb1972b53343bb09601fc939a60e4b6e17`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x604D	18940 bytes

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