PDF malware analysis — malicious · 28ac54f45e220667

MALICIOUS

PDF

34.6 KB Created: 2021-06-20 02:40:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 11c6e637a01feef001869bf00137e5ff SHA-1: 706a9f30457ca7f9dad6129c8d2fa7bc2c723d2f SHA-256: 28ac54f45e220667101e6e2ea0b4436a97795074bdb70e4fe70f90c8f806934b

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external resources, disguised as guides for game hacks, which is a common lure for malicious downloads. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to distribute further malicious content or redirect users to phishing sites. No scripts were extracted, but the document's structure and embedded links point towards 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/how-to-do-attack-speed-hack-roblox-2021-feb-game-hack
- https://metropolemoveis.com.br/ckfinder/userfiles/files/roblox-promo-codes-for-free-robux_GM431946152.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/how-to-telecharging-a-website-of-hacking-on-roblox_GM431946152.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/coin-master-apk-hack-mod-download_GM406889139.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/coin-master-free-spins-app-android_GM406889139.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/freespinandcoin-blogspot_GM406889139.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/coin-master-70-spin-link-today_GM406889139.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-robux-gift-card-codes-2021_GM431946152.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/coin-master-free-spins-link-hack_GM406889139.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-spin-today-coin-master_GM406889139.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/roblox-hacks-2021_GM431946152.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/why-people-ask-for-free-robux-in-roblox_GM431946152.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/roblox-arsenal-hack_GM431946152.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-spins-coin-master-2021_GM406889139.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/free-robux-sites-2021_GM431946152.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/dbz-hack-roblox_GM431946152.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/adfly-roblox-hack_GM431946152.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/krnl-roblox_GM431946152.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/coin-master-free-spins--coins-2021_GM406889139.pdf
- https://metropolemoveis.com.br/ckfinder/userfiles/files/hacked-roblox-game_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_off00002e7f.bin` `fc83af8ed04f9d0106713267eee3fdf96826382c5a6547e032c08c3f1a4db6ea`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E7F	22056 bytes
`font_01_sfnt_off00005f42.bin` `974028c6815adf564b8f7a0ef4e828c6800d2b324824619a91cbc79469d602e4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F42	20008 bytes

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