MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, a significant number of which point to a link farm hosted on Shopify. One of these links, https://ttraff.ru/pify?keyword=bescherelle+pdf+free+download, is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Bescherelle pdf free download', suggesting a lure to trick users into clicking the malicious link. The presence of a malicious redirector and the link farm structure indicates an attempt to distribute further malicious content.
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/pify?keyword=bescherelle+pdf+free+download In PDF document text
- http://files.ojala.shop/uploads/1/3/1/6/131636987/1415559.pdfIn PDF document text
- http://files.soflamsc.com/uploads/1/3/2/6/132681452/solulite_wifuvekolaje.pdfIn PDF document text
- http://kajumiw.charlayvangoshen.com/uploads/1/3/1/3/131383791/pejabasafebol.pdfIn PDF document text
- http://files.helptakeaction.com/uploads/1/3/2/6/132681938/3009213.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/1/0435/8995/9843/files/mujunoxubedogij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30408896218.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3812/9823/files/53769801074.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15501301831.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5814/2120/files/38100161066.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5014/7745/files/40960516171.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0079/0170/files/kireruwafikevomifaxetodup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9885/7891/files/9720864512.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9005/9176/files/xilubufazalufuvini.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jotinu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8266/9461/files/page_break_google_docs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4098/7543/files/36438461555.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1035/8439/files/manidimerokovof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5170/3706/files/age_of_empires_2_validating_subscriptions.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_off00006139.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6139 | 5384 bytes |
SHA-256: b9841847bf0cb656da32d9f93baf972a5fe551cd63a98e4fc1e49cbc31342c15 |
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font_01_sfnt_off00007397.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7397 | 10256 bytes |
SHA-256: e977221d3008a00cb8c7e76bf14e19d5e8748700a7c0a37a483324d044916753 |
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