PDF malware analysis — malicious · 9d5766e70e22a11a

MALICIOUS

PDF

46.7 KB Created: 2021-06-14 00:48:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: eb7cbd686ea759ef59054a2713e30c6e SHA-1: b3eea8386b9c7140d4fb53b8d6a502294d3a3092 SHA-256: 9d5766e70e22a11ab198a40c15b26dd762a21e93d4bcda2f2ed16c3b8ea3c3d7

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a call-to-action phrase, strongly suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence. The document body and embedded links point towards lures for free in-game items, a common tactic for distributing malware or leading users to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9977

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-roblox-promo-codes-2021-august-game-hack
- http://www.compusiteinc.com/images/free-robux-hacks-no-verification_GM431946152.pdf
- http://www.compusiteinc.com/images/comment-gagner-400-robux-sans-hack_GM431946152.pdf
- http://www.compusiteinc.com/images/how-to-get-robux-for-free-2021_GM431946152.pdf
- http://www.compusiteinc.com/images/free-fans-on-tiktok_GM835599320.pdf
- http://www.compusiteinc.com/images/coin-master-free-2021-spin-link_GM406889139.pdf
- http://www.compusiteinc.com/images/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdf
- http://www.compusiteinc.com/images/free-tiktok-views_GM835599320.pdf
- http://www.compusiteinc.com/images/coin-master-connection-lost-hack_GM406889139.pdf
- http://www.compusiteinc.com/images/roblox-free-bundles_GM431946152.pdf
- http://www.compusiteinc.com/images/coin-free-spin_GM406889139.pdf
- http://www.compusiteinc.com/images/free-cam-script-roblox-v3rmillion_GM431946152.pdf
- http://www.compusiteinc.com/images/coin-master-hack-ios-jailbreak_GM406889139.pdf
- http://www.compusiteinc.com/images/ban-roblox-pour-avoir-hack-des-robux_GM431946152.pdf
- http://www.compusiteinc.com/images/free-robux-no-downloading-apps_GM431946152.pdf
- http://www.compusiteinc.com/images/free-tiktok-followers-instantly_GM835599320.pdf
- http://www.compusiteinc.com/images/coin-master-hack-software-download_GM406889139.pdf
- http://www.compusiteinc.com/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
- http://www.compusiteinc.com/images/how-to-hack-into-an-account-roblox_GM431946152.pdf
- http://www.compusiteinc.com/images/roblox-fr-extreme-hack_GM431946152.pdf
- http://www.compusiteinc.com/images/free-robux-hack-2021_GM431946152.pdf
- https://krnl.rocks
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004b4a.bin` `f98b57bae2949bd80f1a735eccbcfe4d3fc3cfe36470c20677a511757c5c02f1`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B4A	30768 bytes
`font_01_sfnt_off000090c3.bin` `552278767b6db81f7ffdc07eb4d968df1aa53e8d3e7b91d072715efbd2e83af7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90C3	19472 bytes

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