MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, including one pointing to a known malicious redirector at 'https://ttraff.ru/wb?keyword=kierkegaard%20present%20age%20pdf'. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external PDF link farm, suggesting a tactic to manipulate search results or distribute malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.
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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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=kierkegaard%20present%20age%20pdf In PDF document text
- http://files.anseasternwashington.org/uploads/1/3/1/4/131453249/vezag-sarabojid-tufudedafikum-xenipelamu.pdfIn PDF document text
- http://files.evandusenportfolio.com/uploads/1/3/2/6/132682335/0c046fe2cca4d00.pdfIn PDF document text
- http://files.canvasofthemind.org/uploads/1/3/1/4/131407823/5205868.pdfIn PDF document text
- http://files.fathomworx.com/uploads/1/3/0/9/130969887/d13a310b25.pdfIn PDF document text
- http://files.andy-buchan.co.uk/uploads/1/3/0/8/130874513/jisade.pdfIn PDF document text
- http://files.dizzycoach.com/uploads/1/3/0/8/130874129/redesoba-xurun.pdfIn PDF document text
- http://files.ukyorthoresidency.com/uploads/1/3/2/3/132302892/99a02991.pdfIn PDF document text
- http://files.midamericayouthrugby.org/uploads/1/3/0/8/130874575/vodatumiv.pdfIn PDF document text
- http://files.nanrubin.net/uploads/1/3/1/1/131164095/78144c98d018c.pdfIn PDF document text
- http://files.restorativeintegration.com/uploads/1/3/1/4/131408537/3711713.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://pezelid.files.wordpress.com/2020/06/29074371103.pdfIn PDF document text
- https://guzolegevaxa.files.wordpress.com/2020/07/1245383691.pdfIn PDF document text
- https://xisipitojeg.files.wordpress.com/2020/07/remafetipuv.pdfIn PDF document text
- https://sewekomebugi.files.wordpress.com/2020/06/12667310613.pdfIn PDF document text
- https://sozerowefi.files.wordpress.com/2020/06/ponuwosalikonokojoderod.pdfIn PDF document text
- https://takijavovasi439113950.files.wordpress.com/2020/06/75986385892.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niborenegukudokeregus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71062637782.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/banefidofekadozimodomi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gujogu.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_off00007517.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7517 | 4888 bytes |
SHA-256: 5f79874b65b0a074c1967a50435115a706e591c805287748219aec4b169bff7c |
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font_01_sfnt_off000085bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85BD | 9972 bytes |
SHA-256: d3c18d05fbd0333ee0e2b745237295660b2f37a17ec70ad6e3e66515a64c8756 |
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