MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.club'. The document body, though partially corrupted, contains the same URL and a reference to 'Saint barbara movie', suggesting a lure. The presence of numerous other PDF links, many pointing to 'static.usrfiles.com', indicates a link farm strategy, likely to obscure the malicious destination or for SEO poisoning. The ML classifier also strongly flagged this PDF as malicious.
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.club/wix?keyword=saint+barbara+movie 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/c63dba_2fade71111924b9289fb35a577774083.pdfIn PDF document text
- https://static.usrfiles.com/ugd/5899d5_18ec5fbf13704f5985becdfcd3223b2a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/808cd0_82738baca6b54b64b559ac8073541338.pdfIn PDF document text
- https://static.usrfiles.com/ugd/8aba0c_e07140843a8d44b786d4074dbefadf25.pdfIn PDF document text
- https://static.usrfiles.com/ugd/286fb8_9a72df7764994c8ea0c611471c2f7dae.pdfIn PDF document text
- https://static.usrfiles.com/ugd/143c98_3ba75c5d10fc4f69b210650e2d3644d9.pdfIn PDF document text
- https://static.usrfiles.com/ugd/a51aec_90f22e203cf1492883fd9c6f52f1f58f.pdfIn PDF document text
- https://static.usrfiles.com/ugd/3b47cb_20eb494e11d845d883d76595e26dd558.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0652/4566/files/tony_hawk_s_underground_2_soundtrack.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3735/1323/files/bhagavad_gita_full_story_in_kannada.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0879/2475/files/58287910452.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9097/5647/files/xuxifamajilowimexisil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7956/5465/files/mupijulakom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5244/9444/files/8546072997.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0461/8148/2650/files/56573606037.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9242/5370/files/5097209936.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_off00004768.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4768 | 4924 bytes |
SHA-256: 0768579eede930c690273f73aea96fd863c34ab0776ae761d650aaf7e1db6d39 |
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font_01_sfnt_off00005816.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5816 | 9776 bytes |
SHA-256: 96ea97a64e12d66772cf5031a72fb258843e7967e0dfdb04e648f7cc063ab160 |
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font_02_sfnt_off000079c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79C4 | 16632 bytes |
SHA-256: 7ed423fd6f64a2accaab24a388a557cab9318e50e2ef4475c53ca1e35efe0f17 |
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