MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically targeting a keyword related to medical information. The primary malicious URL identified is https://ttraff.com/pify?keyword=autoimmune+hemolytic+anemia+pathophysiology+pdf, which acts as a redirector. The document body, though heavily obfuscated, contains this URL and other links to Shopify domains, likely to appear legitimate. The heuristic firings indicate this PDF is part of a link farm and contains a malicious redirector.
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=autoimmune+hemolytic+anemia+pathophysiology+pdf In PDF document text
- http://files.murphysheanon.ie/uploads/1/3/0/9/130969241/bf76e4aa2.pdfIn PDF document text
- http://files.systercute.com/uploads/1/3/0/8/130874064/3977918.pdfIn PDF document text
- http://files.nofakies.com/uploads/1/3/0/7/130739544/simaxute.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0433/6418/8312/files/13492379577.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9409/8598/files/27031667967.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2852/7776/files/buvizunuvasifilitesetudiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/3196/2535/files/kewinedisivimatezaleno.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5529/9237/files/how_to_understand_yourself.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6795/7658/files/bogobasawukedivexexis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9197/5580/files/zexomimibaregagemepalaxoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2348/3548/files/85346974220.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6303/3502/files/paraphrase_with_synonyms.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3041/2453/files/pufumumenaxenedoxonegeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9263/1962/files/galaxy_a50_specs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9823/4270/files/tusawat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2348/3548/files/634636378.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000068bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68BC | 5448 bytes |
SHA-256: 3c89f5af21422bd9f481dd179acb173aa46eebf2326fb153f0a06f3223f961af |
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font_01_sfnt_off00007b25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B25 | 12228 bytes |
SHA-256: 1ba7e4d3ea81b4c7ef547d800b78c2efedd9e7f520e9b838ba325d08eae84d61 |
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font_02_sfnt_off0000a25a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA25A | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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