MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document exhibits characteristics of a phishing or link farm attack, indicated by the presence of numerous external links, many hosted on disposable domains. ClamAV detected this file as Pdf.Phishing.Trojan, and ML classification returned a high probability of maliciousness. The document body contains garbled text, but the presence of URLs like 'https://vilenefex.ru/strik?utm_term=vitamix+a3500+ascent+series+blender+costco' suggests a lure to a potentially malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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External URI info PDF_URIPDF contains an external URL action
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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://vilenefex.ru/strik?utm_term=vitamix+a3500+ascent+series+blender+costco PDF link annotation
- https://vegalatunom.weebly.com/uploads/1/3/0/7/130776393/209ed.pdfIn PDF document text
- http://psylath.com/sivezumosigumqqbe7.pdfIn PDF document text
- http://art-practice.org/52249649750adjy0.pdfIn PDF document text
- http://goldenframecollision.com/can_quantum_physics_predict_the_future61mpb.pdfIn PDF document text
- http://creditscorerepair.info/osi_model_7_layers_diagram5shju.pdfIn PDF document text
- http://dayzcommunity.info/likudijoeoyq.pdfIn PDF document text
- https://fomezesas.weebly.com/uploads/1/3/4/3/134343882/razokokugel_bobobise.pdfIn PDF document text
- http://ca-management.website/vijurazajosikofewa9unj.pdfIn PDF document text
- http://alphabitx.com/how_can_i_reset_a_honeywell_thermostatclggu.pdfIn PDF document text
- https://tigasedoxopafu.weebly.com/uploads/1/3/4/7/134707490/pegof_fiposagaval_xopenonularoja.pdfIn PDF document text
- https://pudibapajupi.weebly.com/uploads/1/3/3/9/133986481/9fa0d4ce2952.pdfIn PDF document text
- https://bufaxivija.weebly.com/uploads/1/3/1/3/131383981/4530608.pdfIn PDF document text
- http://italiahot.space/speaking_of_courageb5med.pdfIn PDF document text
- http://vashe-zdorovie.xyz/avery_labels_template_51621xv4d.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://07a38509-5a9d-4455-89b8-b0b93af23ef2.filesusr.com/ugd/f9d4cd_dd2cb4b53a6c439f96b688ca02bc8e9a.pdf?index=trueIn PDF document text
- https://1c92f6d8-19eb-429c-9239-1cf6be91372f.filesusr.com/ugd/cc1a03_e65d2230c5bf421e8abc87b1b6f937e3.pdf?index=trueIn PDF document text
- https://f414df59-d0c5-412c-8277-160bd92acc6e.filesusr.com/ugd/055bb3_dd38c380fe5b4a30ae0f6152d0174254.pdf?index=trueIn PDF document text
- https://c63ca81c-6df4-4ec3-bc2e-8508f29a6879.filesusr.com/ugd/d48fe3_188ed900a1934f0687769ce05d4a1d14.pdf?index=trueIn 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001550d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1550D | 5476 bytes |
SHA-256: c8e2309c3bd16d9ba10bca9dc5cf74610d4226a8e91e4504afd1e0fef89dc210 |
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font_01_sfnt_off0001677d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1677D | 11464 bytes |
SHA-256: e5295f81657c41436b17b5811935ae50f8d8ee9b4403e7eef5154d7875dc1844 |
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font_02_sfnt_off00018e8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18E8E | 16092 bytes |
SHA-256: 5a0f3201a24ed2a57505e8024997e2db85426dd3628234a35942050eb422bb46 |
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font_03_sfnt_off0001a33f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A33F | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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