MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text related to converting XML to PDF and mentions the authoring application 'wkhtmltopdf', suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, many hosted on cdn.shopify.com, which are likely part of a link farm to improve search engine ranking for malicious content. The primary malicious IOC is the redirector URL.
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.com/wb?keyword=como%20converter%20xml%20em%20pdf%20online In PDF document text
- http://files.jameskallembach.com/uploads/1/3/1/8/131856331/409862.pdfIn PDF document text
- http://files.rebuildersspecialty.com/uploads/1/3/0/7/130776795/7ef163.pdfIn PDF document text
- http://files.megtinsleymft.com/uploads/1/3/0/7/130775760/2156743.pdfIn PDF document text
- http://files.teamantoinette.org/uploads/1/3/2/8/132815002/dakaxe.pdfIn PDF document text
- http://files.gabriellemoulding.com/uploads/1/3/0/9/130969761/pizumubuzefotusob.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/1/0432/9262/3001/files/safuwovirosabegofurufe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7971/9317/files/80807243971.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6053/5196/files/62919639943.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4477/2759/files/66232272604.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7909/6728/files/79743078945.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3759/7591/files/737830470.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9744/6818/files/givufilan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4228/3432/files/39330000312.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2161/5775/files/34663281417.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0637/7633/files/75797265460.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8827/1767/files/o_reilly_books.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2905/4118/files/sesuxofatabeziripewel.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004e6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E6E | 4852 bytes |
SHA-256: 6cc67eb3a412dfd7370014043eb331a23bfe4d7d6862e57c304f34a62034d092 |
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font_01_sfnt_off00005edc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EDC | 12392 bytes |
SHA-256: 5a5089f6504eff0e7eed1e6a256b45764a86ab90a568940cff40aee7ad627eba |
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font_02_sfnt_off000084d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84D0 | 4324 bytes |
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71 |
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