MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure at 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to 'Infecciones de vias urinarias bajas pdf', suggesting a lure to attract users to click on the malicious links. The presence of a large number of external PDF links also indicates a link farm strategy.
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.cc/wb?keyword=infecciones%20de%20vias%20urinarias%20bajas%20pdf In PDF document text
- http://files.joyfulsoundchoir.org/uploads/1/3/1/3/131398377/09ba6a.pdfIn PDF document text
- http://files.calebmurray.com/uploads/1/3/0/9/130968962/situdafetof_sakod.pdfIn PDF document text
- http://files.therapists4u.com/uploads/1/3/2/7/132710565/980552.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/1/0428/7424/1187/files/kulapitokalaret.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5598/8374/files/kesufinifaji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2630/9535/files/jimuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32852202686.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gowaluzefep.pdfIn PDF document text
- https://xujonajodezo.files.wordpress.com/2020/07/27699828501.pdfIn PDF document text
- https://gexajibixij.files.wordpress.com/2020/07/53412767764.pdfIn PDF document text
- https://lopekaso.files.wordpress.com/2020/06/gitilidurozuvu.pdfIn PDF document text
- https://tadawukisag.files.wordpress.com/2020/07/71683627357.pdfIn PDF document text
- https://murekiw.files.wordpress.com/2020/06/jizuvafukobazunutaravi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1007/2481/files/81841554150.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5486/6333/files/fuwirudekagebutazino.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6164/0352/files/zofofakepu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wulusiwebope.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0922/0501/files/padunudowobapidefetes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9578/4600/files/xizupotijufizepuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8565/2375/files/wowipoge.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4356/1376/files/tolen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6392/7206/files/mezosufij.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_off000082d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82D1 | 5132 bytes |
SHA-256: 0e8b0326acf738cf90dee26e15590589aaef11849aa7a9bec79d0e8b294a4443 |
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font_01_sfnt_off00009449.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9449 | 10020 bytes |
SHA-256: 5a71a918b1c492791fe6da0bb763e80a22bd28bd59b0bbe5a91a532e961dccf1 |
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