MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external links, suggesting a link farm. One of the embedded URLs, https://ttraff.ru/wb?keyword=weissenhof%20mies%20van%20der%20rohe%20pdf, is identified as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains obfuscated text and URLs, further supporting the malicious intent.
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=weissenhof%20mies%20van%20der%20rohe%20pdf In PDF document text
- http://files.familyloilty.com/uploads/1/3/0/7/130776130/dowasigunafet.pdfIn PDF document text
- http://files.mehlmansmunchkins.com/uploads/1/3/0/8/130874090/9301479.pdfIn PDF document text
- http://files.tsgsalesspot.com/uploads/1/3/0/7/130775607/xegalisiforix_nuluxinabokezas.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/1/0434/1373/3533/files/21590708949.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1104/7575/files/begowazexegupesizu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6423/9014/files/xirojupusudir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6916/9045/files/the_scarlet_ibis_questions_and_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5653/7493/files/salasoxakoxeledixogamoze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9418/7933/files/kikamimavuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6241/1935/files/jemuduru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jokesinoximirupabujikupoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2973/3282/files/cambridge_checkpoint_science_workbook_3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4016/1435/files/pejutipulolutufa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5031/1579/files/calisthenics_book_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8103/1075/files/candidiasis_bucal_nios.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0142/9662/files/gojuku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1370/9730/files/93425966001.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kufotiniponekurek.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_off00006873.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6873 | 5320 bytes |
SHA-256: 66351f32ab926504c6de9c5ba31e69cdf3a63b6e54861009614b38d4044a9219 |
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font_01_sfnt_off00007a6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A6F | 11580 bytes |
SHA-256: c82240c60258717da8ed8a890baad9bd3279f7da57bc9444c497ccbbb5eeea1e |
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