MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'css3 properties and values'. The presence of multiple SEO-optimized PDF links further indicates an attempt to distribute malicious content or phish users. The ML classifier also strongly indicated maliciousness.
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=list%20of%20all%20css3%20properties%20and%20values%20pdf In PDF document text
- http://files.mobile-mower-fix.co.uk/uploads/1/3/2/6/132695543/zigovel-difim.pdfIn PDF document text
- http://files.stcroixtech.org/uploads/1/3/1/4/131438180/sujodav-mavekopavoxof-xudewefume-zetiw.pdfIn PDF document text
- http://files.nicholasluciusart.com/uploads/1/3/2/6/132681885/gexabasidufo.pdfIn PDF document text
- http://files.fabiolaborgesdecastro.com/uploads/1/3/0/8/130874495/2920860.pdfIn PDF document text
- http://files.haleythestoryteller.com/uploads/1/3/0/9/130969184/5042667.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/1/0433/9168/0666/files/newavedof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3487/7847/files/tenovowawulajewilene.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7335/3381/files/maribix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4798/4026/files/76722332257.pdfIn PDF document text
- https://povodijagez.files.wordpress.com/2020/07/revul.pdfIn PDF document text
- https://tokatoxosi.files.wordpress.com/2020/06/wagagaxoj.pdfIn PDF document text
- https://lukipidize.files.wordpress.com/2020/07/vutadajepovenevoperivib.pdfIn PDF document text
- https://vasoponox.files.wordpress.com/2020/06/43007988150.pdfIn PDF document text
- https://xujeveva.files.wordpress.com/2020/07/fofigoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5502/2234/files/dizepumekeduzajisitovefu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8493/8390/files/fomumovo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2567/7982/files/rugasilagaxegozox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0224/7838/files/kerawogetivajotodafusow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15796621189.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5225/3863/files/88848056968.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1992/7713/files/11591534168.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6200/9755/files/71387884245.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_off00008d80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D80 | 5196 bytes |
SHA-256: a60c92c668b834dfebb0d26ed5df1e1ffe2f0ed992ca209cf12f469dd7823881 |
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font_01_sfnt_off00009f34.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F34 | 10796 bytes |
SHA-256: 210bbf0c0f92412739afa36ef065201dbaaf2e6b7fd6450838b14c78ceed94c9 |
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