PDF malware analysis — malicious · 60043ab3ed709ec0

MALICIOUS

PDF

45.1 KB Created: 2021-05-13 18:00:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 1b63bebc6c25e1881ba940c98df6164c SHA-1: 939c0654106f0696d98e105b6422c0943a48b71a SHA-256: 60043ab3ed709ec031c0642308b9f6db17aac092b88a55cfd6a393515a42f0fe

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains numerous external links, many of which are part of a link farm designed to appear as SEO content for popular games and free currency generators. The document body and embedded links promote 'free Robux' and 'Coin Master spins' with no verification, a common lure for phishing or scam sites. The ML classifier strongly flagged this PDF as malicious, and the presence of a large number of external links suggests an attempt to redirect 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 https://netcdn.xyz/app/431946152/free-robux-generator-no-human-verification-or-survey-2021-game-hack
- https://zarco.co.in/uploaded_files/userfiles/files/coin-master-game-free-spin-download_GM406889139.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/coin-master-hack-free-spins_GM406889139.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/free-robux-codes-generator-no-verification_GM431946152.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/free-robux-place_GM431946152.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/can-you-download-minecraft-for-free_GM479516143.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/get-free-spins-coin-master-october-2021_GM406889139.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/coin-master-34-4-hack_GM406889139.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/today-free-spin-link-for-coin-master_GM406889139.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/free-coin-master-hack-no-verification_GM406889139.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/free-roblox-toy-codes_GM431946152.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/coin-master-claim-spins_GM406889139.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/how-to-get-free-robux-com_GM431946152.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/free-robux-codes_GM431946152.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/get-free-spins-in-coin-master_GM406889139.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/how-to-earn-robux-for-free-2021_GM431946152.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/how-to-hack-in-arsenal_GM431946152.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-hack_GM406889139.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/free-roblox-card_GM431946152.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/coin-master-pet-food-hack_GM406889139.pdf
- https://zarco.co.in/uploaded_files/userfiles/files/minecraft-education-free_GM479516143.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_off00004cbd.bin` `c6312763832e975c08e3077d3ddcfc0ebe48278c847c9afdc1135eb5c167ab5c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4CBD	26792 bytes
`font_01_sfnt_off00008a18.bin` `3a60cdb248c638d1e974f8488a9d0c49865e0dbecbd8cc682acbe36144e2e86e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A18	19556 bytes

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