MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=felipe+tena+ramirez+derecho+constitucional'. This indicates the document's primary purpose is to lure the user to a malicious site. The document body, though heavily obfuscated, contains the same URL, reinforcing this finding. The file also exhibits characteristics of a link farm, with numerous external links, suggesting a broader SEO-based malicious distribution strategy.
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=felipe+tena+ramirez+derecho+constitucional In PDF document text
- http://files.judithmbishop.net/uploads/1/3/1/3/131398000/fimogazedo.pdfIn PDF document text
- http://files.mooneyhsclassof66reunion.org/uploads/1/3/1/3/131382808/tozonaluwojali.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://cdn.shopify.com/s/files/1/0432/7292/9435/files/dukibu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8240/7335/files/pipal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3239/5423/files/bleacher_report_fantasy_football_week_13.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6970/9217/files/srimad_bhagavatam_tamil_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5247/4267/files/64294050689.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/5306/2043/files/23093349354.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3651/5221/files/zifonefux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2477/6354/files/lemikewez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6683/2534/files/nuxabesoviwup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3731/0626/files/pruebas_filtradas_ser_bachiller_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1245/5591/files/kiwanox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2829/7381/files/cnc_machine_cutting_tools.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_off0001948f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1948F | 5200 bytes |
SHA-256: 97d0e4d1247be211f7bbdcbd02d1a3c241e8209e93c4007d6f260940809ae482 |
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font_01_sfnt_off0001a608.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A608 | 12452 bytes |
SHA-256: b986f1eca9b20b773ab551abb2a824e53023ac501da2373c5920511cf2ff3a66 |
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font_02_sfnt_off0001ce2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CE2E | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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