MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious due to a large number of embedded links, many of which lead to a redirector service. The document body contains a URL that also points to this redirector. This suggests a link farm or SEO poisoning attack, aiming to direct users to malicious content. The presence of numerous Shopify-hosted PDFs, while benign themselves, are likely used to mask the malicious redirector links.
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=are+ice+sheets+growing+or+shrinking In PDF document text
- http://tojavud.exetertrees.uk/uploads/1/3/1/1/131164538/bfcd2deeec41d.pdfIn PDF document text
- http://somivim.autisticsunitedca.org/uploads/1/3/2/3/132303189/e7789.pdfIn PDF document text
- http://files.marchingchiefs5k.com/uploads/1/3/2/7/132710491/zixipat_puwixek.pdfIn PDF document text
- http://wexota.summitsalesrecruiting.com/uploads/1/3/1/4/131437948/nituxa_wemodutesazaju.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/68905528383.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0386/2440/files/99399257407.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2096/8358/files/artist_cv_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/9108/0869/files/wimakunufibi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4088/2340/files/zuroteperaginu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8570/8968/files/zekaduzeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7400/1825/files/86768219291.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5675/1002/files/39169025868.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9832/3609/files/92691975299.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1037/5325/files/51202276455.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7643/5621/files/94972792026.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4907/4344/files/fabojimesovebelunitodopo.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000854f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x854F | 4752 bytes |
SHA-256: a3c51b996d3c38faf1893e9dd3ea463dfa31f880aab44aca70230ff23096b28b |
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font_01_sfnt_off0000957b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x957B | 10152 bytes |
SHA-256: 6229281d90b51590606cb0237f14efd2d9d033a93a637349abeb4cdceb1cddde |
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font_02_sfnt_off0000b88c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB88C | 18340 bytes |
SHA-256: 15d93c5059a3168ecd56f92658996aa4d49709440c67dab53b85be63ab0baf51 |
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font_03_sfnt_off0000d4c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4C9 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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