MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains numerous embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'Electrocardiography pdf download'. The presence of a link farm further indicates an attempt to manipulate search engine results to distribute malicious content. 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.com/pify?keyword=electrocardiography+pdf+download In PDF document text
- http://files.tylersmith82.com/uploads/1/3/1/1/131164431/nevanijivelilowi.pdfIn PDF document text
- http://files.chezhospice.org/uploads/1/3/0/8/130874585/rovewasobex-dudenexifo-garakanujuwoj-vonovafonunu.pdfIn PDF document text
- http://files.whitemudtrading.ca/uploads/1/3/1/4/131454492/lovimikiva-pokiti-xufakikuwilani-gaziwuzidofex.pdfIn PDF document text
- http://files.priscillabe.com/uploads/1/3/0/8/130874143/3467f3ff.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/1/0431/1672/4386/files/11243437543.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4243/0362/files/86331679375.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4768/1191/files/wonexofuluvupojovakovu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3724/5086/files/matixasesiwenul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5343/9383/files/6990722956.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2023/9519/files/lokinuvegadugipinixasataw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0917/1879/files/lejulasutilugusu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3225/4376/files/giwopidizo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58097506778.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6690/1148/files/biwopepajojobepasidaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0118/2370/files/gemulokowunarinunodop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6529/3462/files/bebekobekifukitevuge.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0800/0163/files/tamep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7567/4014/files/bedaginuvesitifolamitupum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7044/0095/files/52021344758.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_off00006fb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FB4 | 5176 bytes |
SHA-256: e29e46cd7b7223e7a71ad8f8a220594c567640fbe2f89dd6079d0a417afff0da |
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font_01_sfnt_off00008159.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8159 | 10112 bytes |
SHA-256: 4f441ca7549e37dce86c9c9b2e2299167c963dfc0ec2eb9e0d6d133f2f11eb57 |
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