PDF malware analysis — malicious · b14b2db238ab7a49

MALICIOUS

PDF

34.5 KB Created: 2021-06-17 17:15:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: c1795f291ea5a4f8ba32a9f9188c7fd9 SHA-1: 7ed69b3c1ad31e0d507fe2a70d7b294659ecf8d0 SHA-256: b14b2db238ab7a4967fb4033a898e9025d7511674f1416757d0c63e8dbf3e199

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a link farm, heavily suggesting a phishing or malware distribution attempt. The document body and extracted URLs focus on lures for free game items and hacks, indicating a social engineering tactic to entice users to click malicious links. The ML classifier also flagged this PDF as malicious with high confidence.

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/roblox-animation-pack-free-game-hack
- http://www.taxiaparis.fr/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdf
- http://www.taxiaparis.fr/images/free-roblox-avatar_GM431946152.pdf
- http://www.taxiaparis.fr/images/get-free-gold-cards-in-coin-master_GM406889139.pdf
- http://www.taxiaparis.fr/images/how-to-get-free-robux-without-verifying_GM431946152.pdf
- http://www.taxiaparis.fr/images/how-to-get-more-robux-for-free_GM431946152.pdf
- http://www.taxiaparis.fr/images/free-spins-for-coin-master_GM406889139.pdf
- http://www.taxiaparis.fr/images/coin-master-free-spins-and-cards_GM406889139.pdf
- http://www.taxiaparis.fr/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdf
- http://www.taxiaparis.fr/images/how-to-get-free-robux-without-verification_GM431946152.pdf
- http://www.taxiaparis.fr/images/roblox-hacks-2021_GM431946152.pdf
- http://www.taxiaparis.fr/images/coin-master-hack-with-lucky-patcher_GM406889139.pdf
- http://www.taxiaparis.fr/images/free-models-roblox-virus_GM431946152.pdf
- http://www.taxiaparis.fr/images/minecraft-free-unblocked_GM479516143.pdf
- http://www.taxiaparis.fr/images/is-free-robux-real_GM431946152.pdf
- http://www.taxiaparis.fr/images/free-robux-no-verification-or-survey_GM431946152.pdf
- http://www.taxiaparis.fr/images/free-spin-link-of-coin-master_GM406889139.pdf
- http://www.taxiaparis.fr/images/how-to-hack-clothes-in-roblox_GM431946152.pdf
- http://www.taxiaparis.fr/images/how-to-exploit-roblox_GM431946152.pdf
- http://www.taxiaparis.fr/images/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdf
- http://www.taxiaparis.fr/images/codes-how-to-get-free-robux_GM431946152.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_off00002e89.bin` `6ad5f8d536526d1fab44a391c75f06bcaaae3c4c7abe7736bffb44c3c7a4499d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E89	22672 bytes
`font_01_sfnt_off00006139.bin` `260f1cf5dbed1f547d9c2588bfe13fdce3946bf9648588a4cfdf405740c09d65`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6139	19272 bytes

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