MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded links, identified as a link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=lenovo+flex+5+vs+flex+4', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to contain references to this URL, suggesting a lure to external content. The presence of a link farm indicates an attempt to distribute malicious content or conduct phishing operations.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=lenovo+flex+5+vs+flex+4 In PDF document text
- http://files.sarasotacountysurplusproperties.com/uploads/1/3/0/7/130739263/pisesawaxupi_furaziguve.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/1/0437/8106/2813/files/31535507022.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6321/2192/files/fazopeba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8831/3510/files/bill_of_lading_formato.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2588/9442/files/vebeveke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0179/1132/files/new_jersey_driver_manual_test.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0457/0772/2908/files/informal_assessment_tools_for_teachers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0595/9574/files/22462910515.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7124/2391/files/bmp_to_converter_download_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8595/4198/files/xupaxaxisobuvolosi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3336/1574/files/panuguwuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4945/9605/files/54509306552.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9234/4999/files/22121841624.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_off0000733c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x733C | 4736 bytes |
SHA-256: f81696044d2d259fd7a689252ce9b88cfca1fef2a0cf7e730dd18150b25364d2 |
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font_01_sfnt_off0000838d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x838D | 10760 bytes |
SHA-256: f7577b4e4b0abd87429b8bff13d13ce44fc7f9ab93b3debcd8e5caab73b7494c |
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