PDF malware analysis — malicious · db268b71a5a4adc8

MALICIOUS

PDF

43.7 KB Created: 2021-06-03 16:14:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 575398b508496b43aebe333b1cd413ae SHA-1: d0d4075fe8f358d4a853f7073234201908685c6e SHA-256: db268b71a5a4adc85114e37a189e73235136c7a2620d8a65ec8754bf1734ded6

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF files related to free game items and cheats. The presence of a PDF_SEO_LINK_FARM heuristic firing and the ML_NYX_PDF_MALICIOUS score indicate a high likelihood of malicious intent, likely to drive traffic to potentially unwanted or malicious content. No scripts were extracted, but the document's structure and embedded links suggest a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/minecraft-free-ios-game-hack
- https://www.andrology.co.uk/uploads/files/files/how-to-get-free-robux-for-kids_GM431946152.pdf
- https://www.andrology.co.uk/uploads/files/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
- https://www.andrology.co.uk/uploads/files/files/pokemon-go-free-ultra-balls_GM1094591345.pdf
- https://www.andrology.co.uk/uploads/files/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdf
- https://www.andrology.co.uk/uploads/files/files/free-minecraft-bedrock_GM479516143.pdf
- https://www.andrology.co.uk/uploads/files/files/what-is-coin-master-app_GM406889139.pdf
- https://www.andrology.co.uk/uploads/files/files/coin-master-apk-mod-hack-download_GM406889139.pdf
- https://www.andrology.co.uk/uploads/files/files/free-spins-coin-master-without-completing-offers_GM406889139.pdf
- https://www.andrology.co.uk/uploads/files/files/coin-master-free-download-app_GM406889139.pdf
- https://www.andrology.co.uk/uploads/files/files/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdf
- https://www.andrology.co.uk/uploads/files/files/roblox-hack_GM431946152.pdf
- https://www.andrology.co.uk/uploads/files/files/free-roblox-hack-us_GM431946152.pdf
- https://www.andrology.co.uk/uploads/files/files/coin-master-hack-apk-latest-version-2021_GM406889139.pdf
- https://www.andrology.co.uk/uploads/files/files/getrobux-info_GM431946152.pdf
- https://www.andrology.co.uk/uploads/files/files/pokemon-go-free-or-gotcha_GM1094591345.pdf
- https://www.andrology.co.uk/uploads/files/files/free-spins-coin-master-blogspot_GM406889139.pdf
- https://www.andrology.co.uk/uploads/files/files/free-robux-offers_GM431946152.pdf
- https://www.andrology.co.uk/uploads/files/files/master-coin-hack-apk_GM406889139.pdf
- https://www.andrology.co.uk/uploads/files/files/minecraft-windows-10-free_GM479516143.pdf
- https://www.andrology.co.uk/uploads/files/files/free-spin-and-coin-blogspot-com_GM406889139.pdf
- https://playhack.in/minecraft
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000052e8.bin` `d8b2334a11bbb44e5fc427f4a9e511b6181f0d527ca7dfd78732454caec1ea68`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x52E8	24248 bytes
`font_01_sfnt_off000089d5.bin` `54d91aee1a0896e30cfb652b9b9fc91e7951cfaa65da7a48657c461bc2dd637d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89D5	17712 bytes

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