MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many of which point to SEO link farms and malicious redirectors, such as 'https://ttraff.ru/pify?keyword=optex+redscan+pdf'. This indicates an attempt to disguise malicious content and lure victims to potentially harmful sites. The ML classifier also strongly flagged this PDF as malicious, supporting the assessment of a phishing or malware distribution campaign.
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=optex+redscan+pdf In PDF document text
- http://files.fnplweb.org/uploads/1/3/0/7/130740262/gazozariz.pdfIn PDF document text
- http://vizigo.missionmobilizationjonasmuyima.org/uploads/1/3/1/4/131407089/a122c542c2f04.pdfIn PDF document text
- http://files.thesummiteauclaire.com/uploads/1/3/0/7/130739593/zazox-zigugigop-vatopuja-rudorefifun.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/1/0432/5107/3174/files/articles_of_association_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6377/9221/files/tubumojugivulufojofu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8451/3444/files/18348094143.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2571/0756/files/jijujix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0989/1742/files/62184530018.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4754/9088/files/building_electrical_maintenance_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7685/9557/files/47704160817.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7044/5973/files/rilasulukilamuwunutibipa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4349/5841/files/32502413744.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0974/4789/files/59228652900.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6535/1073/files/international_accounting_standard_38.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5688/2086/files/romironumopazebo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6758/0322/files/xonamewesi.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_off00006802.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6802 | 5212 bytes |
SHA-256: 75c18d5f0e1b143dfa601c1d07d9555bfeec85ae95905bc9a8bca591d5727c68 |
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font_01_sfnt_off000079d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79D1 | 10208 bytes |
SHA-256: 3662a0d87071a43bc6237ddfaa09efef6145d3cd36b8bebe378a212550aa2b59 |
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