MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the critical heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.ru/pify?keyword=carrier+air+conditioner+brochure+pdf. The document body, though heavily obfuscated, contains references to 'Carrier air conditioner brochure pdf' and the authoring application 'wkhtmltopdf', suggesting a lure to disguise the malicious links. The presence of numerous links to Shopify-hosted PDFs, many of which are benign, indicates an attempt to blend malicious content with seemingly legitimate resources.
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/pify?keyword=carrier+air+conditioner+brochure+pdf In PDF document text
- http://files.sbafootball.org/uploads/1/3/2/8/132814768/kuzekajide.pdfIn PDF document text
- http://files.eveningshadeshibas.com/uploads/1/3/1/4/131483214/e926a6add.pdfIn PDF document text
- http://files.goacesfootball.com/uploads/1/3/2/8/132815015/vabutozadebemun-razaxikete.pdfIn PDF document text
- http://files.highflyerseducation.com/uploads/1/3/1/4/131453902/femaw.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/1/0440/6447/3253/files/46609887800.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7691/0242/files/13914348185.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9982/4032/files/mephis_bleek_round_here.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6562/0118/files/69285963835.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3349/1606/files/food_adulteration_paragraph.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5795/4464/files/jajedokejove.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2585/8714/files/95515724546.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8982/1845/files/2091797644.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6797/4556/files/gubupuvipavafe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5756/9189/files/classical_mechanics_john_r_taylor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6683/2534/files/78798025791.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65587220918.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6299/2795/files/68044011723.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1121/1425/files/korefax.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_off00007216.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7216 | 5076 bytes |
SHA-256: 8f012ebf9abb6871a2878d9c0bd4ff39bedecf62a40367fc632055df51353ade |
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font_01_sfnt_off0000834d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x834D | 10048 bytes |
SHA-256: 9735eb5b05e89185a4c9206b1f2bc94b293d683e9431fef3c4b3e52b25097063 |
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