MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to a redirector URL associated with malicious activity. The document body, though partially corrupted, contains text related to a tax calculator, suggesting a phishing lure. The ML classifier strongly indicated maliciousness, and the presence of a redirector link confirms a malicious intent to lead the user to a harmful site.
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/pify?keyword=r%25C3%25A9forme+fiscale+luxembourg+2017+calculatrice In PDF document text
- http://refepi.theideatree.org/uploads/1/3/2/7/132741099/8258281.pdfIn PDF document text
- http://dijapute.marktravels.net/uploads/1/3/0/7/130738970/giropimurepowol_jugeniguv_madenajidigeko_zunos.pdfIn PDF document text
- http://bopax.vipwoodenpens.com/uploads/1/3/0/7/130775918/1676404.pdfIn PDF document text
- http://files.savefarthingworthgreen.org/uploads/1/3/0/8/130873840/9027896.pdfIn PDF document text
- http://files.barbadosintoronto.com/uploads/1/3/1/1/131163834/rupaxokumid-kepumivar-jomikuden-beputivebi.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/1/0435/3864/5151/files/cradle_of_rome.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4535/5682/files/fepedadoxibamopimev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5419/4085/files/xekunimakonajosufawulotor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3191/9765/files/cambridge_igcse_mathematics_core_and_extended_third_edition_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6756/2391/files/american_airlines_logo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2031/9893/files/31865952522.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8102/3132/files/bogapezadunirenogugorole.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9535/7595/files/twilight_breaking_dawn_part_2_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4796/0232/files/33652101156.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8385/8080/files/tekkit_legends_texture_pack.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5031/1579/files/42802222887.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3823/5031/files/6559168627.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3531/1784/files/oxford_discover_2_grammar_book.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_off00004b12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B12 | 5964 bytes |
SHA-256: 1a29797fa2dbffed611d7e39b3cebfac0da6a500bb290f86cbc808e4b949db37 |
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font_01_sfnt_off00005f21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F21 | 10192 bytes |
SHA-256: d16c47729248af7739e9b996e53f6fe4693e2011182562550364f106f8d23602 |
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