MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a redirector URL. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.cc/wix?keyword=controle+de+math+4eme as malicious. The PDF_SEO_LINK_FARM heuristic indicates a link farm designed to manipulate search engine results, likely to obscure the malicious redirector. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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=controle+de+math+4eme In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static.usrfiles.com/ugd/60933b_49c7fa51ef7241649c17fa1ec6d7c7e9.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_a2f640f340c6440aaa326855df987f29.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_514fcb85c753499db8ea586f9985d5a2.pdfIn PDF document text
- https://static.usrfiles.com/ugd/2c8d66_e38b1d27f3204137bf6dd0399db794c8.pdfIn PDF document text
- https://static.usrfiles.com/ugd/930050_37981f332d5749efaac7a8574eaa7c39.pdfIn PDF document text
- https://static.usrfiles.com/ugd/e3ff21_a81f8143e2fe47cd971fc5e77ad64368.pdfIn PDF document text
- https://static.usrfiles.com/ugd/21e6f2_bc097fc2345147b9bac80d49b3f9c442.pdfIn PDF document text
- https://static.usrfiles.com/ugd/1decf9_046390aa91e14860897ee06b55b262f1.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_9d01c966a0c143d886debc6ec7c5fe9d.pdfIn PDF document text
- https://static.usrfiles.com/ugd/db1da1_6d6f110ed455438fa66918f6d2c65d53.pdfIn PDF document text
- https://static.usrfiles.com/ugd/7e0eb0_424dedbb564744d9924988ecc356282e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_5689eced90bd429ca9020d6800e11d52.pdfIn PDF document text
- https://static.usrfiles.com/ugd/7dd30d_f3ffcfebfab746e5b565e3607b6323c8.pdfIn PDF document text
- https://static.usrfiles.com/ugd/73c254_d0ee4a4db0d44f8195b3d8465d624022.pdfIn PDF document text
- https://static.usrfiles.com/ugd/efb3f0_6cf90583e98a461e9ea84bb9c4319ecd.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_28e3e3daad48408fa536b1a636621400.pdfIn PDF document text
- https://static.usrfiles.com/ugd/f4de5e_ef9764a471534787a48b54f986761789.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000600e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x600E | 4880 bytes |
SHA-256: 08e0210d756995082358da1594971af6c9bc13dba4a065ed3bf743c82052fa16 |
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font_01_sfnt_off00007073.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7073 | 10508 bytes |
SHA-256: 54c36549d72708ad9952431c451d976c702d30994f43fcddd0a2f3be3e79e845 |
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font_02_sfnt_off0000945b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x945B | 16100 bytes |
SHA-256: 4a3d97cb0f01b67db0f2c0c67b38c82a67e4beafd846d3a18a1ca53b20acedf2 |
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