MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL `https://kuzutuzo.ru/strik?utm_term=national+security+database+certification+quora` is likely part of this lure, aiming to direct users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://kuzutuzo.ru/strik?utm_term=national+security+database+certification+quora PDF link annotation
- https://saletenabij.weebly.com/uploads/1/3/4/3/134339554/xixogemofafofefadu.pdfIn PDF document text
- https://jadajamajive.weebly.com/uploads/1/3/4/7/134770809/1710012.pdfIn PDF document text
- http://tlgfree.xyz/86065086333bq91m.pdfIn PDF document text
- https://vubenazago.weebly.com/uploads/1/3/4/3/134357699/nomabul.pdfIn PDF document text
- http://klokisik.space/act_bubble_sheet_2020kglha.pdfIn PDF document text
- http://filemarker.store/1992918735401daz.pdfIn PDF document text
- https://rebafanivine.weebly.com/uploads/1/3/6/0/136054257/6615a07ca6c.pdfIn PDF document text
- https://zajefogana.weebly.com/uploads/1/3/1/4/131407312/jotuluputuxuse-fojupumi.pdfIn PDF document text
- https://gejilesiwurulu.weebly.com/uploads/1/3/4/3/134374779/kigojasefuto-lariwidiwer.pdfIn PDF document text
- https://pifabesi.weebly.com/uploads/1/3/5/9/135958575/xatejut_kibiwomod.pdfIn PDF document text
- https://naxaletuzo.weebly.com/uploads/1/3/4/5/134508506/favujepesabu_xinuzov_lemujerovepe_nuxazebonobofi.pdfIn PDF document text
- https://rodibafabe.weebly.com/uploads/1/3/0/7/130738722/nezupevegapavedutuki.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://56148a0a-83a3-4003-94ff-78d3044b7c00.filesusr.com/ugd/6f5f23_af3b8802132846a3aef2ed734e641508.pdf?index=trueIn PDF document text
- https://fb4bdcd3-28a3-4206-a6c3-fb267f511c23.filesusr.com/ugd/0ad562_d564f847bf4d4cc89b721d1af292ac98.pdf?index=trueIn PDF document text
- https://9b56c271-8e60-4ff0-96d1-8930f8c082f8.filesusr.com/ugd/5a1ab0_3530ab9c56244496bc65370bae77b283.pdf?index=trueIn PDF document text
- https://c1f973cf-d719-4acb-8f9e-cd83ae4fb94d.filesusr.com/ugd/057766_fcad527cd4b647b284e57e3c59666fa2.pdf?index=trueIn PDF document text
- https://c78267de-509c-4cb0-9394-6b21b7876e04.filesusr.com/ugd/290ce3_27ec170d1a1f4071870a48791b95444c.pdf?index=trueIn PDF document text
- https://f867c6cd-7aae-4938-a634-6821dcb48262.filesusr.com/ugd/eb45fa_60ba94f9eff44f7b94dc37d312c6fcf2.pdf?index=trueIn PDF document text
- https://f421159b-d329-41e8-bc42-072bc93e4c50.filesusr.com/ugd/65d6f7_1840bcc3d04642099dd92320e0624a25.pdf?index=trueIn PDF document text
- https://6e7ef639-f89a-4701-86f9-710a836f1183.filesusr.com/ugd/12745a_0022d79177d84ceb8ec80236fa5c26e2.pdf?index=trueIn PDF document text
- https://de315c38-daa2-4293-b666-e554ba9b7d65.filesusr.com/ugd/564d2e_a1670ede6e514b2f941a95b488e5c6ac.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00013b04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B04 | 5352 bytes |
SHA-256: 994776e7c896a04cc7deabad47833c469d014d6df55652f10f9546b3aaff111b |
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font_01_sfnt_off00014d4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14D4B | 11216 bytes |
SHA-256: 19820db8ae973f4e7ff66602b4d2a3e4bfd81f60dee4b0ed652d7b2859268a39 |
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