MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF contains a link farm designed to redirect users to malicious infrastructure, disguised as a maintenance manual. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates a direct link to a known malicious redirector, while PDF_SEO_LINK_FARM highlights the extensive use of external PDF links. No scripts were extracted from this sample, but the embedded URLs are the primary indicators of malicious intent.
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.cc/wb?keyword=manual%20de%20mantenimiento%20centro%20de%20lavado%20frigidaire In PDF document text
- http://files.weststormontwoodlandgroup.org.uk/uploads/1/3/1/4/131437044/towes-bubel-tuwolabijufuzi.pdfIn PDF document text
- http://files.cathyxwu.com/uploads/1/3/0/7/130740375/9670320.pdfIn PDF document text
- http://files.mymodernsolutions.ca/uploads/1/3/1/3/131380612/nukaferutetubixo.pdfIn PDF document text
- http://files.designinghealth.org/uploads/1/3/1/6/131637291/4e0d6f9f4c7a.pdfIn PDF document text
- http://files.theliteraturefactory.com.au/uploads/1/3/2/3/132302907/moganafezizewan.pdfIn PDF document text
- http://files.okobojisailingcenter.org/uploads/1/3/1/6/131636984/6777844.pdfIn PDF document text
- http://files.burchlearning2.com/uploads/1/3/0/7/130776327/murapu.pdfIn PDF document text
- http://files.hope2farmers.org/uploads/1/3/1/4/131482953/ketelojomajipo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://xutogoronobu.files.wordpress.com/2020/07/15018891884.pdfIn PDF document text
- https://rebutoso.files.wordpress.com/2020/06/42995033151.pdfIn PDF document text
- https://gubobag.files.wordpress.com/2020/06/82541728999.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1234/9334/files/ruzupunetova.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5590/6973/files/82476899069.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3365514284.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6656/4507/files/fofexelos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5254/7739/files/gapoxopenadesujavafajo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojedisubeweful.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57308776079.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4338/9597/files/pojiz.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_off0000e72a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE72A | 5112 bytes |
SHA-256: d25704c8835047672a2a794e1951669210ab71af5968febae21808d091cea5be |
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font_01_sfnt_off0000f87a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF87A | 11936 bytes |
SHA-256: 0e00f15c216c9e1b65d3e856cf04b37645c52384f4d14582979d4ed727297937 |
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