PDF malware analysis — malicious · f3be11338fb254a3

MALICIOUS

PDF

56.2 KB Created: 2021-06-07 14:22:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 28c63c6696791957cd76eed2bc9d6a77 SHA-1: ee56493694e3f81be76d45d7452ba24fc2fad69c SHA-256: f3be11338fb254a334010075eab107486207f2afb6ad588814c3a232672384a4

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links, identified as a link farm, that direct users to pages offering game hacks and cheats. The ML classifier strongly indicated maliciousness, and the presence of a "download button" heuristic further supports a malicious intent to trick users into clicking these links. No scripts were extracted, but the structure and embedded URLs are indicative of a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9649

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.tw/app/431946152/roblox-descargar-hack-game-hack
- http://ines.co.rs/images/tiktok-free-followers-instantly_GM835599320.pdf
- http://ines.co.rs/images/roblox-robux-hack-no-offers_GM431946152.pdf
- http://ines.co.rs/images/get-free-spins-on-coin-master-2021_GM406889139.pdf
- http://ines.co.rs/images/coin-master-hack-unlimited-spins_GM406889139.pdf
- http://ines.co.rs/images/tik-tok-free-fire-kreatif-lucu_GM835599320.pdf
- http://ines.co.rs/images/free-spins-link-in-coin-master-2021_GM406889139.pdf
- http://ines.co.rs/images/minecraft-bedrock-free-download-pc_GM479516143.pdf
- http://ines.co.rs/images/roblox-no-download-hack_GM431946152.pdf
- http://ines.co.rs/images/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdf
- http://ines.co.rs/images/coin-master-game-hack-link_GM406889139.pdf
- http://ines.co.rs/images/free-robux-hack-no-human-verification_GM431946152.pdf
- http://ines.co.rs/images/free-tiktok-accounts-and-passwords_GM835599320.pdf
- http://ines.co.rs/images/coin-master-daily-free-spins-link-app_GM406889139.pdf
- http://ines.co.rs/images/coin-master-daily-free-spins-and-coins_GM406889139.pdf
- http://ines.co.rs/images/tiktok-views-free_GM835599320.pdf
- http://ines.co.rs/images/how-to-get-robux_GM431946152.pdf
- http://ines.co.rs/images/coin-master-daily-free-spins_GM406889139.pdf
- http://ines.co.rs/images/free-card-giver-roblox-jailbreak_GM431946152.pdf
- http://ines.co.rs/images/coin-master-free-coins-link-march-2021_GM406889139.pdf
- http://ines.co.rs/images/hacks-roblox_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005499.bin` `6653e4e596ba2f2ba8f3c5d70377a177aa1488118c9d64eb1cbe045fd2874899`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5499	40420 bytes
`font_01_sfnt_off0000aea2.bin` `bd082aa73fbb1a8b3bd2e5c998d3d8e31d1dfc71ea36f846af746f69a0d2ab7f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAEA2	2824 bytes
`font_02_sfnt_off0000b856.bin` `4e2303d25e6dd9cd8d78b06acb9783075d59c60414db9b8c6271b4df0c1b6479`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB856	18640 bytes

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