MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that point to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of creating link farms on such sites, likely to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://inwebjor.ru/uplcv?utm_term=airprint+app+for+android PDF link annotation
- http://parkingparts.com/Upfiles/file/59622934654.pdfIn PDF document text
- https://ximatinhdongnai.com/app/webroot/files/images/pages/files/77680746217.pdfIn PDF document text
- http://akinmedikal.com/uploads/file/titavatererutetimam.pdfIn PDF document text
- https://psfund.org/public/uploads/files/cms_files/7735371448.pdfIn PDF document text
- http://www.letnifestiwal.pl/ckfinder/userfiles/files/fetevagunamigisimenax.pdfIn PDF document text
- http://tochalco.com/uploads/files/niwufabimotuxi.pdfIn PDF document text
- http://texinpack.com/uploadfile/file///2021083116244991.pdfIn PDF document text
- https://turismo-galicia.es/ckfinder/userfiles/files/62203604496.pdfIn PDF document text
- http://all-paca.com/ckeditor/ckfinder/core/connector/php/uploads/files/dapug.pdfIn PDF document text
- http://lachina.cn/upload/file/5063862477.pdfIn PDF document text
- https://sergeca.com.ve/ckfinder/userfiles/files/pusotisesajej.pdfIn PDF document text
- https://kingwaterpure.com/ckfinder/userfiles/files/lawawejodesawufoxajulavi.pdfIn PDF document text
- https://gestionarival.com/userfiles/file/muvegupuseni.pdfIn PDF document text
- https://maftplayer.net/calisma2/files/uploads/91321480117.pdfIn PDF document text
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/1613b4ffd56734---lurofugepokovusik.pdfIn PDF document text
- http://yaqeen-eg.com/userfiles/file/roduvakixobovesubuvudodik.pdfIn PDF document text
- https://ascend.sut.ac.th/ce/2017/src/plugins/ckfinder/userfiles/files/45157967137.pdfIn PDF document text
- https://youxsoft.com/uploads/files/rorafapamowerobujedum.pdfIn PDF document text
- http://szjwwj.com/userfiles/file///63712925541.pdfIn PDF document text
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/161359e80f35b3---nuretimo.pdfIn PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fd44e52852---78439869233.pdfIn PDF document text
- http://urgentcarepb.com/userfiles/file/lanasuwunewijemine.pdfIn PDF document text
- https://protum.se/file/febila.pdfIn PDF document text
- https://33mobility.net/uploads/files/21874374488.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://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_off0000b258.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB258 | 10128 bytes |
SHA-256: eb055e7534bdf312dc20c8a0e814324d203fc8d07c7b5caea05b5ebcf2bdfe5d |
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font_01_sfnt_off0000c904.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC904 | 15168 bytes |
SHA-256: 4ff42c86c1886a9262e4ae54101943fc14917d882aae949994fb6dfbb31bf54f |
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font_02_sfnt_off0000eeec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEEC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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