PDF malware analysis — malicious · 2969c69ad7ab0be1

MALICIOUS

PDF

33.5 KB Created: 2021-07-07 11:18:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: f15ec5b10a9c373ef728768decc037e3 SHA-1: 37a868337037f18ceb1b5a130205f5ce3547f69a SHA-256: 2969c69ad7ab0be180da0621fedd83f78225dfac1ac8050b5549388aede5d2c1

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and embeds numerous links to external PDFs, indicating a link farm or SEO poisoning tactic. The primary URL, http://netcdn.tw/app/431946152/oprewards-login-game-hack, likely serves as a landing page for a malicious payload or further phishing. The ML classifier strongly flagged this PDF as malicious, supporting the observed malicious content and structure.

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.tw/app/431946152/oprewards-login-game-hack
- https://www.gotsolution.se/uploaded_files/userfiles/files/roblox-jailbreak-money-hack-july-2021_GM431946152.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/games-on-roblox-that-have-free-boombox_GM431946152.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/minecraft-realms-free_GM479516143.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/coin-master-download-hack-ios_GM406889139.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/how-to-get-robux-hack-2021_GM431946152.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/roblox-redeem-codes-free_GM431946152.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/pokemon-go-free-redeem-codes_GM1094591345.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/brick-cars-cheat-codes-roblox_GM431946152.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/how-to-get-2021202120219-robux-for-free_GM431946152.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/roblox-how-to-get-free-stuff-2021_GM431946152.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/roblox-cheats-tool_GM431946152.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/free-spins-coin-master-links_GM406889139.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/free-robux-hack-2021-working_GM431946152.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/free-roblox-game-card-code-generator_GM431946152.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/coin-master-free-spins-link-today-instagram_GM406889139.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/hack-coin-master-spin_GM406889139.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/coin-master-free-coins_GM406889139.pdf
- https://www.gotsolution.se/uploaded_files/userfiles/files/roblox-troll-outfits-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_off00002eae.bin` `76fabc0a33ea8308dbe16f6b6cecc5b9f27b2fb7b9dcb81712a5e2e85d13ec1e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EAE	21796 bytes
`font_01_sfnt_off00005ec1.bin` `045e49a4c4c31e0b2cb524b946194a47b78cf6c5b310be207d27975ae3ba71fa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EC1	18680 bytes

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