MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a high number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, likely for SEO manipulation. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=archinteriors+vol+free'. The document body, though heavily obfuscated, contains this same URL and references to 'archinteriors vol free', suggesting a lure for a free download. The presence of a malicious redirector indicates an attempt to lead the user to a malicious site, potentially for further exploitation or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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=archinteriors+vol+free In PDF document text
- http://files.elaineraydesigns.com/uploads/1/3/1/6/131637177/783e8b.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/1/0428/1883/0503/files/absenteeism_research_paper.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/1400/8486/files/bilunovanevowiravapeku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3168/3484/files/amcor_annual_report_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nejoxalivivurotuzepebibus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2338/2174/files/goreredaniziro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8351/2473/files/poultry_feed_formulation_and_production.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8697/0018/files/83206522320.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2920/8992/files/wewidudakupagotawirabeme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2715/9448/files/cctv_cable_installation_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8933/8276/files/76723197429.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6844/8165/files/wisagovidironifodozuvo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4981/0080/files/dupotedifezazosagegatak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6014/3014/files/93038521071.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1711/7589/files/lutid.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_off00005f88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F88 | 4808 bytes |
SHA-256: a573d5f8b79ac62d5629020b467e2b86a720e822525e03a07597fbafb262e6ee |
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font_01_sfnt_off00006fde.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FDE | 10520 bytes |
SHA-256: a04f2b08291b020ac185272923b2d345c38432da846b829fdbb21e81a08685ae |
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