MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file flagged as malicious by ML classifiers and ClamAV. It contains a large number of external links, many pointing to disposable domains, indicating a link farm or SEO manipulation scheme. One of the embedded URIs, 'https://vilenefex.ru/award?keyword=small+business+proposal+sample+pdf', suggests a lure to disguise the malicious intent. The PDF structure and embedded content are consistent with techniques used to distribute malicious content or manipulate search engine rankings.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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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/award?keyword=small+business+proposal+sample+pdf PDF link annotation
- http://fulukegoror.getenjoyment.net/97970759433.pdfIn PDF document text
- https://wigufigavotafo.weebly.com/uploads/1/3/1/4/131452860/gomareg.pdfIn PDF document text
- https://jaxefosizi.weebly.com/uploads/1/3/6/0/136083017/zejutak-wafixejawigamaz-nisatuvi.pdfIn PDF document text
- http://zogometemo.sportsontheweb.net/bonjour_tristesse_analyse.pdfIn PDF document text
- http://kodutizaga.mywebcommunity.org/antibioticos_para_absceso_perianal.pdfIn PDF document text
- https://jotegeposopema.weebly.com/uploads/1/3/4/7/134743683/8638080.pdfIn PDF document text
- https://lufisadoxusixa.weebly.com/uploads/1/3/4/5/134583632/togeralivadavu-komeken-fokujada-vajumolurizuke.pdfIn PDF document text
- https://sekilulijafos.weebly.com/uploads/1/3/1/4/131438177/gipexa.pdfIn PDF document text
- https://vovinusowoxojik.weebly.com/uploads/1/3/4/3/134349833/b862bf00a5f590.pdfIn PDF document text
- http://zigapajuxijado.mywebcommunity.org/fukafewirugibaniwi.pdfIn PDF document text
- https://banezinalirunod.weebly.com/uploads/1/3/1/4/131437453/lifokuzazadas-zegod-gotusokefe-fetizipuwexede.pdfIn PDF document text
- https://kofitabalu.weebly.com/uploads/1/3/0/7/130775223/napesutonolurewerig.pdfIn PDF document text
- http://kaboliwup.mypressonline.com/paduzinixulabibujarofo.pdfIn PDF document text
- http://riwalimuj.scienceontheweb.net/6439958239.pdfIn PDF document text
- https://vigodabazo.weebly.com/uploads/1/3/4/8/134872933/9df4e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/feseni/naruto_shippuden_ultimate_ninja_impact_iso_apk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6fe97ec5-c2e0-47e7-b940-8efc58cbac09/amana_washer_ntw4516fw3_parts.pdfIn PDF document text
- https://s3.amazonaws.com/potofaw/kuzutaf.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9bffa1dd-2594-4c45-89c0-756dea637d9a/syndicated_deal_analyzer_xls.pdfIn PDF document text
- https://s3.amazonaws.com/nilafafakem/gpsmap_62s_for_sale.pdfIn PDF document text
- http://rogofideb.onlinewebshop.net/wagobijovutifesa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d86c762b-0704-4a36-9df8-7531a23e6860/wuzexet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/921859f0-0ff6-4f9e-8446-f02ade8aca15/what_is_dynamic_port_security.pdfIn PDF document text
- http://mukanebesiva.atwebpages.com/cardiopatia_hipertensiva_tratamiento.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1517cd06-cd3c-4920-9e3e-1fbdaf5013a5/go_where_you_feel_most_alive_quotes.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_off00012c54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C54 | 5428 bytes |
SHA-256: 6cb1a0fc5ce78a66a9a7b4d2db5a68c7524be1a533d72a7a24bd4557fbc4d1d9 |
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font_01_sfnt_off00013ea3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13EA3 | 10904 bytes |
SHA-256: 892fd6f7fb67dbb32103b7b20133cc16e7807a83a48cd71b29cc4324e53dd95d |
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