PDF malware analysis — malicious · 21d2decba72e84cd

MALICIOUS

PDF

34.3 KB Created: 2021-06-25 11:08:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13

MD5: 336aa56c83b72b62a44ae6ec9403a397 SHA-1: ac5693988e22494620087969a6309606fda4dd37 SHA-256: 21d2decba72e84cd205e1b9988be725e116dac494530216af652c78e1d95a1f6

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

This PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF files, suggesting a link farm or content-scraping operation. The document body and extracted URLs explicitly mention 'free shirt Roblox', 'free Robux', and 'free Minecraft', indicating a lure for users seeking in-game items or game access. The presence of a download button lure further supports the malicious intent of directing users to potentially harmful content.

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.co/app/431946152/free-shirt-roblox-2021-game-hack PDF link annotation
- https://creationegyptco.com/userfiles/files/roblox-rape_GM431946152.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/how-to-hack-roblox-usesing-python_GM431946152.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://creationegyptco.com/userfiles/files/coin-master-free-box_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00002e64.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E64	22248 bytes
SHA-256: `4f3b48df05bc689d37c6a219e92dfecf1df2dc7d9a66635e39494efb127339a2`
`font_01_sfnt_off00005ff0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FF0	19444 bytes
SHA-256: `cd07f75d10454048c89d3f78f4110ec22eb11e67905ad4b182ca98bc81c77450`

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