MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links designed to create a link farm, with a primary redirector URL pointing to a malicious site. The document body, though heavily obfuscated, also contains the same redirector URL, suggesting an attempt to trick users into clicking it for a supposed free download. The ML classifier strongly indicates maliciousness.
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://gettraff.ru/aws?keyword=show+past+tense+in+french In PDF document text
- https://cdn-cms.f-static.net/uploads/4409000/normal_5f9e27a6b5610.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385634/normal_5f910b1dbb524.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403140/normal_5f97cadb3a5ad.pdfIn PDF document text
- https://feleluxotikuko.weebly.com/uploads/1/3/4/3/134338959/texiwuj.pdfIn PDF document text
- https://zufugorutamivas.weebly.com/uploads/1/3/4/4/134401118/6514299.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/pisik/belkin_thunderbolt_3_express_dock_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8610/1145/files/minecraft_error_placing_order_2020.pdfIn PDF document text
- https://s3.amazonaws.com/biwubeleba/ragevisuxanedoxotefi.pdfIn PDF document text
- https://s3.amazonaws.com/tetazino/vocabulary_in_use_advanced_3rd_edition.pdfIn PDF document text
- https://s3.amazonaws.com/subud/96293854935.pdfIn PDF document text
- https://s3.amazonaws.com/liwafo/11632092447.pdfIn PDF document text
- https://s3.amazonaws.com/sugaguxagu/wefibekelalinikokotijukan.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005ab5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AB5 | 5056 bytes |
SHA-256: b037565e43b2d9907ba6ff059bda2639661694170512b976b26232360328175a |
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font_01_sfnt_off00006be2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BE2 | 10220 bytes |
SHA-256: 6c869b90629951c8ad8ccaeccf3400b98fd2a75820b331c64642e32c19e3c81c |
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font_02_sfnt_off00008ea4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8EA4 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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