MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a high number of embedded links, with at least one pointing to a known malicious redirector at 'https://ttraff.ru/wb?keyword=taquicardia%20sinusal%20causas%20pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of multiple Shopify links, while some are benign, contributes to a link farm strategy to obscure the malicious destination. No scripts were extracted from this sample.
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/wb?keyword=taquicardia%20sinusal%20causas%20pdf In PDF document text
- http://files.thebasslaboratory.com/uploads/1/3/0/8/130873783/jajejuwonujivat-vapabavofo-buwoselumik-falafuzige.pdfIn PDF document text
- http://files.ajlegalaustralia.com/uploads/1/3/0/7/130740504/dapiritususuf.pdfIn PDF document text
- http://files.papercranesoaps.com/uploads/1/3/0/7/130776828/radiwixufuxaw-sizijezevun-zotomizivax.pdfIn PDF document text
- http://nurerul.jeffresnick.com/uploads/1/3/0/7/130776445/vetixo.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/1/0437/0730/2037/files/convert_to_vertex_form_calculator.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8251/4581/files/bullish_patterns.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1854/3523/files/21316860253.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6356/5718/files/gipisotodivefo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2149/2643/files/62371860771.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9032/2342/files/13723977060.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9170/5500/files/principles_of_helicopter_aerodynamics_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9633/4753/files/92203911725.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5955/2155/files/real_time_applications_of_cloud_computing.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5444/8286/files/vijatelatotiralotu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9588/3925/files/mamojevu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4774/6716/files/audyt_finansowy_chomikuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5604/7004/files/torobuwepoboxowetilopewo.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_off000089cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89CD | 5224 bytes |
SHA-256: 52bb0c3fe63b84d1686e3fb739527e20ca288af1cd8fb51d8b6c3b9739ab2f23 |
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font_01_sfnt_off00009b99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B99 | 10688 bytes |
SHA-256: 4a54c3412b4f4307ab6addbeb9bd6b8cca328be623b0bb5a2330b454b4961189 |
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