MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to domains associated with link farms and redirectors, indicating a phishing or malware distribution attempt. The primary malicious URL identified is https://ttraff.ru/pify?keyword=atresia+esofagica+tratamiento+pdf, which is flagged as a malicious redirector. The document body, though partially obfuscated, contains text related to medical treatment, likely serving as a lure.
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=atresia+esofagica+tratamiento+pdf In PDF document text
- http://tovasol.pubquizprep.com/uploads/1/3/2/6/132682327/2394672.pdfIn PDF document text
- http://zibiti.athensprep.org/uploads/1/3/1/4/131406390/15b39db0682ab.pdfIn PDF document text
- http://files.socialstudiesunited.com/uploads/1/3/1/3/131397973/vadaxovaxosuwevusegi.pdfIn PDF document text
- http://xelubo.thelightingsummit.com/uploads/1/3/1/4/131454024/3369954.pdfIn PDF document text
- http://files.ammosfilms.eu/uploads/1/3/0/7/130738792/xijavadokogafuguwu.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/1/0428/8305/5782/files/66262364407.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9732/5732/files/sinafuxo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9969/2958/files/96188182377.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0195/3952/files/92312767140.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7736/0029/files/vabowu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8493/8390/files/reliance_balance_sheet_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9651/4461/files/tunakodavowakaremixumom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3355/1260/files/disociacion_auriculoventricular.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8553/6161/files/tm-_ac1900_firmware.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5959/9765/files/gubomagoxobisunoxizusiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8691/3437/files/vidututojejejexajodizaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2670/1718/files/52395020246.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0396/9689/files/wonixidinupofu.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_off000069ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69AD | 5432 bytes |
SHA-256: 9e4d3d7f524c2cece8ba50e634ba13a56c0fa959216c07d16ab2b28185f8e0a7 |
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font_01_sfnt_off00007c18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C18 | 10192 bytes |
SHA-256: 440a05baf473e27e8e17b840bbac2e0b0b05760e751eae17cc0c1971514d17b2 |
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