MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains multiple heuristics indicating it is a malicious redirector and part of an SEO link farm, designed to lead users to harmful websites. The embedded URLs, such as 'https://traffine.ru/strik?utm_term=one+man+gang+uwf', are flagged as malicious redirectors. The ML classifier and ClamAV detection strongly support the malicious nature of this file, likely used for phishing or distributing further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://traffine.ru/strik?utm_term=one+man+gang+uwf In PDF document text
- https://poriveba.weebly.com/uploads/1/3/4/3/134316211/6d5dfb45ca31.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4443809/normal_5f9ee3b6b73cd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368222/normal_5f879a41ca9de.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382773/normal_5f926a14705f3.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/c4026e1d-50bd-4c40-b429-c3222e2f6f04/damapakevuvemipux.pdfIn PDF document text
- https://s3.amazonaws.com/kudefem/tomesaj.pdfIn PDF document text
- https://s3.amazonaws.com/vatosolikijike/57606813794.pdfIn PDF document text
- https://s3.amazonaws.com/mawesenasijoser/viwinopilizotejukutate.pdfIn PDF document text
- https://s3.amazonaws.com/luramamelolem/juvolososego.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ae28067b-b5b3-4418-9b65-995188d97f84/dudus.pdfIn PDF document text
- https://s3.amazonaws.com/sugaguxagu/anemia_perniciosa_diagnstico.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_off0000f0ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0BA | 4900 bytes |
SHA-256: cc308dfbb1fee58e0600cf4217ec46724223fdde3088d64648776eb37c743894 |
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font_01_sfnt_off0001016f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1016F | 11536 bytes |
SHA-256: 607503aa2d342678be57e015057693b1ba92fdd8a650a72729d1c083c662c4c6 |
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