Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b3cec80cb074705…

MALICIOUS

PDF

35.0 KB Created: 2021-06-29 14:27:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6125f3385e3c1f69c701cba992038fb6 SHA-1: a81b0d53be83904bedf700c9d1f0a3abcd00727b SHA-256: 1b3cec80cb074705e3afa27dd3c65a8d5c8b55e1c4f237290f93e6f1881a4a3a
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links, many of which point to domains related to game hacks and cheats, suggesting a lure for users seeking such content. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and the ML classifier strongly flagged the PDF as malicious. The presence of a 'download button' heuristic further supports the idea that the document is designed to trick users into downloading something.

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-roblox-minifigures-game-hack
    • https://repository.poltekkesgorontalo.ac.id/repository/does-cheat-engine-work-on-roblox-2021_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/roblox-com-r_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-hack-someones-roblox-account-without-cheat-engine_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-hack-m-coins-mcpe-master_GM406889139.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/free-roblox-accounts-v3rmillion-2021-august_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/free-robux-no-verification-no-details_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/daily-free-spins-on-coin-master_GM406889139.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-hack-nuclear-tycoon-money-on-roblox_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/roblox-pretty-much-every-border-game-ever-hack_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/hack-lua-roblox_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/freerobuxhack-us_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/coin-master-free-spin-codes_GM406889139.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/roblox-redwood-prison-hacks_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/roblox-how-to-get-robux-no-hack_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-make-hacks-for-roblox_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/claim-free-robux-button_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/get-roblox-builders-club-free_GM431946152.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/coin-master-daily-free-spin-and-coin-link-haktuts_GM406889139.pdf
    • https://repository.poltekkesgorontalo.ac.id/repository/free-roblox-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030fd.bin
b6bdac564321d917375ceed5973cf79b231b9fe28b358a5dfd3f99a9b761920e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30FD 22544 bytes
font_01_sfnt_off000063cc.bin
d972974b631f5c116c0a7dc0a4d916daa268136469089c0078a1e78b3527d9e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63CC 19104 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.