MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'congenital heart disease causes pdf' and also lists multiple Shopify-hosted PDF files, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=congenital+heart+disease+causes+pdf
- http://files.slitefitnessapparel.com/uploads/1/3/1/4/131453560/4617047.pdf
- http://files.permezone.org/uploads/1/3/1/0/131069869/ruwojisut.pdf
- http://files.figtcm.com/uploads/1/3/1/4/131437091/4346623.pdf
- http://files.chattanoogacrawlspaceencapsulations.com/uploads/1/3/1/8/131856191/f9c1936229fa.pdf
- http://files.lkhair.co.uk/uploads/1/3/1/0/131070166/1971664.pdf
- https://cdn.shopify.com/s/files/1/0429/9925/1093/files/pitakefapekabovilugodikag.pdf
- https://cdn.shopify.com/s/files/1/0436/9845/4682/files/mokavujevuviwezotagose.pdf
- https://cdn.shopify.com/s/files/1/0430/0842/6147/files/tafev.pdf
- https://cdn.shopify.com/s/files/1/0427/4244/8295/files/81588519188.pdf
- https://cdn.shopify.com/s/files/1/0430/3906/4225/files/38966750472.pdf
- https://cdn.shopify.com/s/files/1/0433/0097/8853/files/gevufunu.pdf
- https://cdn.shopify.com/s/files/1/0432/1532/3291/files/business_communication_notes_free_download.pdf
- https://cdn.shopify.com/s/files/1/0440/7577/8198/files/btc_first_semester_science.pdf
- https://cdn.shopify.com/s/files/1/0434/3801/4616/files/80793584071.pdf
- https://cdn.shopify.com/s/files/1/0431/8176/8864/files/12896866323.pdf
- https://medlineplus.gov/congenitalheartdefects.html
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006e4f.bin30b57947d3ef64a1d02feaa6f5db391ce6ac0c3af8bc6521b17af4a0e351de7a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E4F | 5320 bytes |
font_01_sfnt_off0000805c.bindecd383ae8df53134c95bfa7a523b566b8d8ecf2b1fad170509f6ddf687b1d61 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x805C | 10060 bytes |
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