PDF malware analysis — malicious · 08508c4f7b148c38

MALICIOUS

PDF

42.7 KB Created: 2021-05-14 18:49:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: eb4efbf018fe823efede2d0af038aba0 SHA-1: ea13b161e208dafa8c52cb5e8c7911615491a253 SHA-256: 08508c4f7b148c38a79274a7808ff051144ea17d17ffe003adfd715f8bd03fa6

142 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a link farm, suggesting it is designed to redirect users to external sites for potentially malicious downloads. The presence of a 'Password-protected archive handoff' heuristic indicates a common tactic to bypass security filters. The document body, though heavily obfuscated, contains references to 'free Robux' and game hacks, aligning with common social engineering lures.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 5

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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/431946152/rbxfree-com-free-robux-game-hack
- https://www.hotel-forsthaus.com/images/coin-master-free-spin-today_GM406889139.pdf
- https://www.hotel-forsthaus.com/images/free-robux-codes-2021-not-used_GM431946152.pdf
- https://www.hotel-forsthaus.com/images/free-robux-without-downloading-apps_GM431946152.pdf
- https://www.hotel-forsthaus.com/images/how-to-hack-coin-master-computer_GM406889139.pdf
- https://www.hotel-forsthaus.com/images/how-to-get-robux-easy_GM431946152.pdf
- https://www.hotel-forsthaus.com/images/how-do-i-get-free-robux_GM431946152.pdf
- https://www.hotel-forsthaus.com/images/how-do-i-get-free-coins-on-coin-master_GM406889139.pdf
- https://www.hotel-forsthaus.com/images/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdf
- https://www.hotel-forsthaus.com/images/free-robux-rewards_GM431946152.pdf
- https://www.hotel-forsthaus.com/images/free-minecraft-hacks_GM479516143.pdf
- https://www.hotel-forsthaus.com/images/free-robux-gen_GM431946152.pdf
- https://www.hotel-forsthaus.com/images/coin-master-mod-apk-latest-version-free-download_GM406889139.pdf
- https://www.hotel-forsthaus.com/images/coin-master-free-cards-hack_GM406889139.pdf
- https://www.hotel-forsthaus.com/images/coin-master-no-download-app-but-play-for-free_GM406889139.pdf
- https://www.hotel-forsthaus.com/images/coin-master-free-coins-and-spins-group_GM406889139.pdf
- https://www.hotel-forsthaus.com/images/is-minecraft-free-on-pc_GM479516143.pdf
- https://www.hotel-forsthaus.com/images/free-google-play-promo-codes-coin-master_GM406889139.pdf
- https://www.hotel-forsthaus.com/images/coin-master-free-gift-cards_GM406889139.pdf
- https://www.hotel-forsthaus.com/images/coin-master-hack-club_GM406889139.pdf
- https://www.hotel-forsthaus.com/images/free-robux-generator-2021-no-human-verification_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_off00004b20.bin` `b233913d69a985bc2258c8898a4f2badd1db1f591ab5e72beca9c3bbc6a70229`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4B20	25744 bytes
`font_01_sfnt_off000084b8.bin` `3458f47f0b0e4c5d178391a23bbf01d917f000ba7933fbc297d15d2e5240f022`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84B8	18276 bytes

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