PDF malware analysis — malicious · 9b0b959768f02476

MALICIOUS

PDF

42.6 KB Created: 2021-05-17 18:35:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 7242fd908caf5b946b89cd405bdfb63d SHA-1: ad4802ed866f9dd45817494df902236f96a12ad0 SHA-256: 9b0b959768f0247637a9f4d287873ca381f6e7490cb7ef66553943537018823e

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links and a link farm, heavily suggesting a phishing or scam attempt. The document body and extracted URLs point towards lures for game hacks and cheats, aiming to trick users into downloading malicious files. The ML classifier strongly indicates malicious intent.

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/coin-master-hack-game-download-game-hack
- http://bressanassessoria.com.br/images/coin-master-hack-co_GM406889139.pdf
- http://bressanassessoria.com.br/images/can-you-get-free-robux-on-roblox_GM431946152.pdf
- http://bressanassessoria.com.br/images/roblox-royale-high-diamond-hack_GM431946152.pdf
- http://bressanassessoria.com.br/images/my-roblox-account-was-hacked_GM431946152.pdf
- http://bressanassessoria.com.br/images/how-to-hack-in-roblox-prison-life_GM431946152.pdf
- http://bressanassessoria.com.br/images/free-robux-no-download_GM431946152.pdf
- http://bressanassessoria.com.br/images/coin-master-hack-apk-app_GM406889139.pdf
- http://bressanassessoria.com.br/images/robux-fun-hack_GM431946152.pdf
- http://bressanassessoria.com.br/images/roblox-generator_GM431946152.pdf
- http://bressanassessoria.com.br/images/coin-master-free-spins-hack-without-human-verification_GM406889139.pdf
- http://bressanassessoria.com.br/images/free-robux-apk_GM431946152.pdf
- http://bressanassessoria.com.br/images/but-link-says-free-robux_GM431946152.pdf
- http://bressanassessoria.com.br/images/coin-master-free-cards-link-2021-today_GM406889139.pdf
- http://bressanassessoria.com.br/images/how-you-get-free-robux_GM431946152.pdf
- http://bressanassessoria.com.br/images/free-coins-for-flip-master-online_GM406889139.pdf
- http://bressanassessoria.com.br/images/coin-master-hack-no-download_GM406889139.pdf
- http://bressanassessoria.com.br/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
- http://bressanassessoria.com.br/images/how-to-log-out-of-coin-master_GM406889139.pdf
- http://bressanassessoria.com.br/images/coin-master--hack_GM406889139.pdf
- http://bressanassessoria.com.br/images/coin-master-apk_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_003_off000048ac.bin` `d8a3c61f0cfb71286fda472f4c57938c5ac8521404f31fee71663a34dae00beb`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x48AC	25684 bytes
`font_01_sfnt_off0000834f.bin` `89621ed490658390f1fc014040a62f50e37bffa9e55a8f0811625641fd44cbe0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x834F	18556 bytes

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