MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many pointing to Shopify domains, suggesting an attempt to manipulate search engine results or distribute content. One critical heuristic identified a link to a known malicious redirector at 'ttraff.ru'. The ML classifier strongly flagged this PDF as malicious. The document body contains metadata related to PDF generation and a URL that appears to be part of the link farm.
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=vtu+electronics+and+communication+engineering+syllabus+pdf In PDF document text
- http://files.cnmiu14nt.org/uploads/1/3/2/3/132303009/fitupi_zalejotaguf_wepixo_memavoxutozil.pdfIn PDF document text
- http://files.josephbrowne.net/uploads/1/3/2/6/132681826/8658942.pdfIn PDF document text
- http://wesepixog.larryhowlettcpa.com/uploads/1/3/1/3/131378780/dirisuguxipuki.pdfIn PDF document text
- http://files.guyingram.com/uploads/1/3/2/6/132681596/3295852.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/1/0430/4093/1991/files/24614902761.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1190/7488/files/miwuzomuku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mupesoxozuwimufuvijolus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9769/4109/files/75953032472.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9304/0029/files/gedukov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7680/5023/files/71674503235.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1018/6654/files/somenomorew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5131/0488/files/xidusorogozudowazivuki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0670/5316/files/woweluwitasoligekazunuge.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3521/3467/files/61303096460.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4257/0401/files/new_vegas_unofficial_patch_plus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1087/4777/files/77161053854.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3316/5986/files/78751589058.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2017/3983/files/wizepugus.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_off0000d4ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4AE | 5684 bytes |
SHA-256: dc43d2519dd92fc321a5d438b0db768b7ce909e6582044eb996117ad9044a74a |
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font_01_sfnt_off0000e7f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7F4 | 10532 bytes |
SHA-256: f9cf1296149ae2350553ba113218693b4752333eea9a1acfdd7b3be77b848b81 |
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