MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector for SEO link farming. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics, indicating a lure to download further content. The ML classifier strongly supports the malicious verdict.
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.me/123?keyword=opinion+writing+worksheets+for+4th+grade In PDF document text
- https://cdn-cms.f-static.net/uploads/4371787/normal_5f8a1caea356b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365602/normal_5f8756e276642.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367944/normal_5f8896bd3d019.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374838/normal_5f8bf879e0c35.pdfIn PDF document text
- https://kokubexajaluk.weebly.com/uploads/1/3/2/6/132681668/zosorupobekudumafipe.pdfIn PDF document text
- https://tarirubawapub.weebly.com/uploads/1/3/1/6/131606173/2552478.pdfIn PDF document text
- https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/vaxatapebexuvi.pdfIn PDF document text
- https://kabudededawizo.weebly.com/uploads/1/3/1/3/131383409/7749793.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/1/0266/7751/0333/files/41416536318.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4222/5831/files/25970396737.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0498/2626/7291/files/best_task_manager_for_android_2020.pdfIn PDF document text
- https://s3.amazonaws.com/wuzalugiseto/formula_auditing_in_excel_2007.pdfIn PDF document text
- https://s3.amazonaws.com/rizezobabub/bgp_configuration_lab.pdfIn PDF document text
- https://s3.amazonaws.com/dazinibonofobi/bimiworanux.pdfIn PDF document text
- https://s3.amazonaws.com/tipikaxe/category_wise_caste_list_in_karnataka.pdfIn PDF document text
- https://s3.amazonaws.com/wonoti/terokapiwudud.pdfIn PDF document text
- https://s3.amazonaws.com/fomaralunex/pobiva.pdfIn PDF document text
- https://s3.amazonaws.com/vuxalirudidel/80088551189.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7246/3772/files/bein_sports_live_tv_hd_apk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1485/6610/files/bedijeliko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0482/8721/9867/files/nice_guidelines_ischaemic_foot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9020/6101/files/iron_jawed_angels_worksheet.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_off0000526c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x526C | 5540 bytes |
SHA-256: f50c3e4032058c089dbf5a4224b6458a0db584a1d62df89deecc8dfec8c02795 |
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font_01_sfnt_off00006559.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6559 | 10296 bytes |
SHA-256: cb932b2ee7168833bd4c5b1551a8166d9fde6af12b4ee9b2a39ecadfb94cc9a2 |
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