MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to an SEO redirector, which is a common tactic for distributing malicious content. The primary redirector URL is `https://ttraff.ru/wb?keyword=expanding%20and%20simplifying%20algebraic%20expressions%20worksheet%20pdf`. While no scripts were extracted, the presence of multiple links and the ML classifier's high confidence suggest a malicious intent to redirect users to harmful sites.
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.ru/wb?keyword=expanding%20and%20simplifying%20algebraic%20expressions%20worksheet%20pdf In PDF document text
- http://files.scarboroughlodge.co.uk/uploads/1/3/2/6/132681033/1707088.pdfIn PDF document text
- http://files.authorcharityayres.com/uploads/1/3/1/6/131606169/ca7cbb.pdfIn PDF document text
- http://files.sportsimagephoto.com/uploads/1/3/1/8/131871633/74724068aa6eee.pdfIn PDF document text
- http://files.pawsomewalksnj.com/uploads/1/3/1/4/131453602/juwizidopixup.pdfIn PDF document text
- http://files.jacquelinesalvador.com/uploads/1/3/1/4/131453402/2fc7ac52ad1.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8353/9366/files/lewojepidozimobegut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6245/1611/files/mudivinotedis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2011/6380/files/75365854023.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8488/9758/files/58186581622.pdfIn PDF document text
- https://morumekifos.files.wordpress.com/2020/07/542794147.pdfIn PDF document text
- https://wivobajet.files.wordpress.com/2020/07/gafabatujawup.pdfIn PDF document text
- https://sigegajif.files.wordpress.com/2020/06/zisagebikivof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0127/3750/files/xeveniw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84511803825.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5544/7202/files/davegamakuvobavuki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1967/2472/files/rugulatuxabokufired.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mutim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8514/3969/files/99788349373.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23083433767.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000649c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x649C | 5780 bytes |
SHA-256: bc9436f1b53794dc9bbaf2338416bedc7bf8c1a310373a86c486bc72f85d257f |
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font_01_sfnt_off00007833.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7833 | 10128 bytes |
SHA-256: a9d518aa28549a3ecb46044b72949b7b10be673eb5beee107570affe9093a049 |
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