MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
This PDF file contains multiple embedded links, a common tactic for SEO link farms designed to drive traffic to malicious sites. One prominent URL, 'https://ttraff.ru/wb?keyword=weather%20worksheets%20esl%20adults', is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain keywords related to educational materials, likely serving as a lure.
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/wb?keyword=weather%20worksheets%20esl%20adults In PDF document text
- http://files.brooklynartgalleries.com/uploads/1/3/2/3/132302987/xogaked_rujisape.pdfIn PDF document text
- http://files.timothysmithactor.com/uploads/1/3/1/4/131452976/2906862.pdfIn PDF document text
- http://files.brannmanndan.com/uploads/1/3/0/7/130739949/miramagadasa.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/1/0433/0687/7080/files/82973104521.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9985/7823/files/jojepupotop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2318/7614/files/95028458482.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8136/6693/files/tokutogabiganetutix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9860/3669/files/67014968508.pdfIn PDF document text
- https://jolemafe.files.wordpress.com/2020/06/76608930527.pdfIn PDF document text
- https://sojedub.files.wordpress.com/2020/06/woluf.pdfIn PDF document text
- https://lapivaw.files.wordpress.com/2020/07/turopulasorixinok.pdfIn PDF document text
- https://tefaluvutas.files.wordpress.com/2020/06/nemiruz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6379/5094/files/155864449.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dijev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31670740491.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6805/4949/files/zebatovamivatopikitepi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5638/9528/files/53539934654.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7505/2454/files/92835544334.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3033/1040/files/netesakelopitorikiwed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2626/7806/files/35345139703.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/larabobed.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_off000076bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76BB | 4808 bytes |
SHA-256: e95b7a0dd17cde3879dcfd0eee262349f419e136c740954a43acae3c4ae05878 |
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font_01_sfnt_off00008742.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8742 | 10176 bytes |
SHA-256: 8de7f5512a8da53cdccf0d898fcf95819733db7626559a84118628ada9211e4b |
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