MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector infrastructure at `https://ttraff.ru/pify?keyword=pathophysiology+of+acute+respiratory+distress+syndrome+pdf`. The document body itself is heavily obfuscated and appears to contain metadata related to its creation by wkhtmltopdf, but the primary malicious intent is derived from the numerous external links.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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=pathophysiology+of+acute+respiratory+distress+syndrome+pdf
- http://files.danczensv.com/uploads/1/3/1/3/131381006/mulosokizoboruwuf.pdf
- http://files.ccsflippinvintage.com/uploads/1/3/0/8/130814043/vefelegelukijujazozi.pdf
- http://files.stauderwood.com/uploads/1/3/0/8/130813732/7714201.pdf
- http://files.nachnook.com/uploads/1/3/0/8/130873826/1177640.pdf
- https://cdn.shopify.com/s/files/1/0433/0595/9588/files/xifirarojavamoxonigevu.pdf
- https://cdn.shopify.com/s/files/1/0432/5516/9186/files/sebegefijugopigefafozapef.pdf
- https://cdn.shopify.com/s/files/1/0429/5471/9395/files/wurug.pdf
- https://cdn.shopify.com/s/files/1/0428/7430/6719/files/63053365624.pdf
- https://cdn.shopify.com/s/files/1/0434/3929/2577/files/37640617920.pdf
- https://cdn.shopify.com/s/files/1/0434/3827/6760/files/zenexo.pdf
- https://cdn.shopify.com/s/files/1/0431/5725/8401/files/vavewisimuposolanulirabur.pdf
- https://cdn.shopify.com/s/files/1/0430/9575/2864/files/75441055108.pdf
- https://cdn.shopify.com/s/files/1/0431/6856/3355/files/mcculloch_eager_beaver.pdf
- https://cdn.shopify.com/s/files/1/0443/8881/0918/files/danganronpa_v3_rule_34.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/befuxaj.pdf
- https://cdn.shopify.com/s/files/1/0428/2544/9628/files/nezoso.pdf
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000737b.bind2316afd43b9da16bba79e4885c792360408ce85c74ea78b32f99e632ea68674 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x737B | 5672 bytes |
font_01_sfnt_off000086ab.binc9efdfa4d99127776b247dd43bd9df7b9463083c5ac88750f876cc614e216f7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86AB | 11256 bytes |
font_02_sfnt_off0000ab99.bin6820151f9a4816bccc9e85e605aef44ce22c8924dfcccd161584754f275bf028 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB99 | 16132 bytes |
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