MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded links, many pointing to disposable domains, characteristic of a link farm. One of these links directs to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature.
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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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://dafemum.ru/award?keyword=jumbled+sentences+for+class+2+pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4496826/normal_600b2e53786d0.pdfIn PDF document text
- http://rolapisi.scienceontheweb.net/ipad_mini_newest_model_2020.pdfIn PDF document text
- http://nesobaka7.xyz/how_to_calculate_flow_area_of_pipe88tla.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403960/normal_60636935ae74f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481164/normal_6032fdaed8504.pdfIn PDF document text
- https://voxonexagigiwal.weebly.com/uploads/1/3/5/3/135346225/2168345.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4384839/normal_5ff770018097e.pdfIn PDF document text
- http://best-ital.fun/dawuduserisejugutn03e5.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4487631/normal_5fe02a85aaf64.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4426071/normal_5feb5c711e0c5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416322/normal_605f286375583.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411229/normal_5fe6296b1b0dc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4488569/normal_6049ba6f53e42.pdfIn PDF document text
- https://nugurevupag.weebly.com/uploads/1/3/4/1/134108952/3176395.pdfIn PDF document text
- http://xatovapotogu.mywebcommunity.org/55751573432.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410190/normal_60316487850fd.pdfIn PDF document text
- http://baykamif.space/cuanto_equivale_un_microcoulombgcb1c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://kenesowozowojaw.myartsonline.com/17992474024.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001908d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1908D | 5560 bytes |
SHA-256: cbcd8ee8c7238b7f7a5f4931608f98c0e305554e8938718f209a5d819ad55cc5 |
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font_01_sfnt_off0001a35a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A35A | 11384 bytes |
SHA-256: 636dbf66682f5bc791f61202c4b5bea792650d444de1ee7ee2498ac7d60c7bf0 |
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font_02_sfnt_off0001ca5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CA5C | 16144 bytes |
SHA-256: f6e0f4a25f18a144688c6b7f40519a5efc98c72643b9054f89526e396d9b459d |
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