PDF malware analysis — malicious · 59290d88fdfcd507

MALICIOUS

PDF

45.4 KB Created: 2021-05-13 08:36:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: beea720e26086596be210604a60068c0 SHA-1: ae3164776a348ed091589525bc8c3a59222447e6 SHA-256: 59290d88fdfcd507c392864180730356654844b17ac2eb871fede7e2999c8aa3

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains numerous external links, many of which are hosted on `surpetgarut-tmcollection.com` and appear to be part of a link farm designed to attract users searching for game cheats like 'free Robux' or 'free spins'. The presence of a 'download button' heuristic further suggests a malicious workflow aimed at tricking users into downloading further content. No scripts were extracted, but the overall structure and linked content indicate a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

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/431946152/apps-to-get-free-robux-game-hack
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/free-spins-coin-master-hack_GM406889139.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/roblox-avatar-girl_GM431946152.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/get-free-spins-coin-master-link_GM406889139.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/free-spins-on-coin-master-without-human-verification_GM406889139.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/roblox-promo-codes-for-free-robux_GM431946152.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/free-daily-spins-coin-master_GM406889139.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/free-spins-coin-master-2021_GM406889139.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/free-robux-rewards_GM431946152.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/free-spin-link_GM406889139.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/comapp-trekfree-coin-spindaily-link-master_GM406889139.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/stock-speed-coin-master-free-spins_GM406889139.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/play-minecraft-online-free_GM479516143.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/free-robux-2021_GM431946152.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/free-spins-on-coin-master-link_GM406889139.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/how-to-get-robux-easy_GM431946152.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/robux-hack-generator_GM431946152.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/coin-master-hack-355_GM406889139.pdf
- https://surpetgarut-tmcollection.com/ckfinder/userfiles/files/free-robux-mod_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000499e.bin` `7871a16e2063239e467733d696f0ac47cc1fa28697f922cd69999bd2fe66a067`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x499E	25508 bytes
`font_01_sfnt_off00008505.bin` `94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8505	2824 bytes
`font_02_sfnt_off00008eb4.bin` `b4e5860ebf2343f9b18b94d86a305cbc7e8ebd2f2a6bfe7ceeed88b67548d8bf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EB4	18292 bytes

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