PDF malware analysis — malicious · 2811958d7cb509e0

MALICIOUS

PDF

49.8 KB Created: 2020-08-31 08:43:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 97b0342f3593486836fb12c1db406226 SHA-1: ba6313d3055510eb5d155555b14eb5f96142c30b SHA-256: 2811958d7cb509e00a6bc6b9373214de41cf46e21803df56855f2b10c54d9022

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged as malicious by an ML classifier and contains a high density of external links, many pointing to a redirector. The primary malicious URL identified is ttraff.cc, which is used in conjunction with a keyword related to 'tv guide crossword puzzles free printable'. This suggests a tactic to lure users through search engine poisoning or phishing, leading them to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
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://ttraff.cc/wix?keyword=tv+guide+crossword+puzzles+free+printable
- https://static.usrfiles.com/ugd/32acb1_531365ff821e4ebe8070ebdd8cf021c2.pdf
- https://static.usrfiles.com/ugd/a107db_aab39f871e10452e8e1177111d07192a.pdf
- https://static.usrfiles.com/ugd/c8a981_192d92ba837045cca237d34c9fc383e3.pdf
- https://static.usrfiles.com/ugd/1e32c2_f4bbd901888346dc81ad7ccd3509e4b3.pdf
- https://cdn.shopify.com/s/files/1/0435/5070/3779/files/mipavufikusalol.pdf
- https://cdn.shopify.com/s/files/1/0429/3646/7612/files/english_for_auto_mechanics.pdf
- https://cdn.shopify.com/s/files/1/0429/6946/4991/files/37676709497.pdf
- https://cdn.shopify.com/s/files/1/0433/3276/3801/files/91655844329.pdf
- https://static.usrfiles.com/ugd/b8c837_d31096489efc48f1ae5892255feb8075.pdf
- https://static.usrfiles.com/ugd/6a22cb_b67801a47dbb48b1bfb59dbdf6f51080.pdf
- https://static.usrfiles.com/ugd/cbdbb6_f4b0648d4f0543378a184e28f19ff318.pdf
- https://static.usrfiles.com/ugd/b8c837_994500cf58ae452b875fb09143c9f67b.pdf
- https://static.usrfiles.com/ugd/f09a9d_29ecca594b5647c39c975f422adaff42.pdf
- https://static.usrfiles.com/ugd/73c254_d458e0153c7346faa3b58e9677864daa.pdf
- https://static.usrfiles.com/ugd/a4d998_1db5a8a4a4ef4c52bfd62e351e09f619.pdf
- https://static.usrfiles.com/ugd/97493d_605d0e803992470d864ee5f2a015cb08.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000074b2.bin` `895cab3d4475ffbbea933f8587297dcd2ce7c9c5099dc9eaade3d5773144ff37`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74B2	5496 bytes
`font_01_sfnt_off00008785.bin` `abf4081e3807cac4a69b8317ee55c3b3ac66e1e5a2b3fd5288645c1ce373c4c3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8785	10648 bytes
`font_02_sfnt_off0000abe7.bin` `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xABE7	4324 bytes

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