MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple external URIs, with a primary focus on `https://vilenefex.ru/award?keyword=perceived+deficits+questionnaire+5+pdf`. The heuristic `PDF_SEO_DISPOSABLE_LINK_FARM` indicates a pattern of using disposable hosting for link farms, suggesting a malicious intent to redirect users. ClamAV detection as `Pdf.Phishing.Trojan` further supports the malicious classification. The document body is heavily obfuscated and unreadable, but the presence of embedded URLs and the overall structure point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
Heuristics 5
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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 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=perceived+deficits+questionnaire+5+pdf PDF link annotation
- https://cdn.sqhk.co/dowamagova/hdjQfiC/realpolitiks_mobile_apk_obb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387054/normal_6048cfa5a2573.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4473656/normal_601b8fe334fff.pdfIn PDF document text
- https://cdn.sqhk.co/vulovosovem/8SibjhU/minecraft_pocket_edition_gamerule.pdfIn PDF document text
- https://pewovejike.weebly.com/uploads/1/3/5/3/135319851/gipuparupebe.pdfIn PDF document text
- https://veworokog.weebly.com/uploads/1/3/1/6/131606039/faxilafakaxuvagux.pdfIn PDF document text
- https://cdn.sqhk.co/zagekexeroze/gdigjfP/cool_facts_about_human_body.pdfIn PDF document text
- http://raguvigawak.mypressonline.com/how_to_be_more_gentlemanlike.pdfIn PDF document text
- https://cdn.sqhk.co/sizafutito/iVACjiQ/poopsie_unicorn_slime_surprise_ireland.pdfIn PDF document text
- http://kavelokafozi.medianewsonline.com/why_is_it_called_tropic_of_cancer_and_capricorn.pdfIn PDF document text
- http://gelokan.sportsontheweb.net/bosudejuvo.pdfIn PDF document text
- https://cdn.sqhk.co/fetumamuv/Y72hego/zojaxuw.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4370074/normal_5fc864da45ca7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480884/normal_6019b0e361510.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4382965/normal_6004b7999ba5e.pdfIn PDF document text
- https://pekizexigobuton.weebly.com/uploads/1/3/0/8/130815014/gefolinetugebesan.pdfIn PDF document text
- https://cdn.sqhk.co/kekelivig/ajgttie/18131940237.pdfIn PDF document text
- https://bituxomixa.weebly.com/uploads/1/3/4/1/134131270/4910551.pdfIn PDF document text
- https://cdn.sqhk.co/vekuperik/4igr0id/clockwise_definition_opposite.pdfIn PDF document text
- https://wegakerovosa.weebly.com/uploads/1/3/0/8/130873826/rogipadem-nojilometi-vifugigu.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/8db3fffe-5ed5-448c-978a-b9fc575e8f6e/14947884102.pdfIn PDF document text
- http://gototura.myartsonline.com/lol_patch_11.3_release_date_garena.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/51d3a95c-6de9-4e2e-a130-65d2726565f0/my_sweet_audrina_film_streaming.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/391f0990-4046-4511-bde1-254c01223679/alan_watts_chillstep_10.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f6ee5c1b-08e4-440c-9ade-6ea71e3be4b6/kirabipufopibogamobamavis.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/97d11242-1907-4d5b-b232-886d995b105e/simplifying_trig_expressions_calculator.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_off00010614.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10614 | 5428 bytes |
SHA-256: 94a8f74a8589512c92ab3e40911364fe527ec72fb6e3c05681c03dde82cf8f28 |
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font_01_sfnt_off000118a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118A9 | 11308 bytes |
SHA-256: 28abed68e14040474e8eb5a887ecd28ac7981e4c6dfe03b6ead7e3f3aec4f6a9 |
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