MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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://coretry.ru/uplcv?utm_term=how+to+recover+deleted+history+on+chrome+mobile PDF link annotation
- http://hoclaixebinhthuan.com/upload/contentFile/file/61835024522.pdfIn PDF document text
- https://proxus.nl/file/47112529088.pdfIn PDF document text
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/000e70c4a4767361d1205931285f3a2a/givupekotulibofufi.pdfIn PDF document text
- http://erpos.sk/data/files/fimibeda.pdfIn PDF document text
- https://acrgroup.nl/userfiles/file/tawumusekor.pdfIn PDF document text
- https://lufty.cz/UserFiles/files/1655851243.pdfIn PDF document text
- https://rumputhijau.com/contents/files/tolakezuboxu.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/161539d5e9f389---53473226767.pdfIn PDF document text
- http://goodlack.cz/userfiles/file/jobulotugabixasutegu.pdfIn PDF document text
- http://alliance-ic.ru/uploads/file/xuniratusobimugofugevum.pdfIn PDF document text
- http://joomlacode.org/fckeditor/editor/filemanager/img.php?file=file/jifapaju.pdfIn PDF document text
- https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/3f5c429134d542f638c9f58929efc50a/fudevamuwi.pdfIn PDF document text
- https://unitedfightalliance.jordanadams.com/ckfinder/userfiles/files/xopowulatituzoduwovaxa.pdfIn PDF document text
- http://chinastom.ru/userfiles/file/nufiposomexunadufudajafi.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150b424d1b20---11395182456.pdfIn PDF document text
- https://pottoka.info/files/galeria/files/delukutuwipidiko.pdfIn PDF document text
- http://suachuaspa.com/upload/images-content/files/jewosabot.pdfIn PDF document text
- https://lordoptika.hu/files/files/pokabifukotimibi.pdfIn PDF document text
- http://konemara.hu/userfiles/file/galavolaroxovobi.pdfIn PDF document text
- http://canadianrockies.ca/files/file/79135699185.pdfIn PDF document text
- https://toananhmedical.com/uploads/files/35980347536.pdfIn PDF document text
- http://mebel-moscow.com/content/xuploadimages/file/89060188085.pdfIn PDF document text
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/7d705fc3f2e6725f8d648d5f1e0be79c/sobotawaf.pdfIn PDF document text
- https://esvigo.com/upload/files/21385845136.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_off0000b1ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1BA | 17256 bytes |
SHA-256: 4069675c973a04e1aa8ac237f1f99352f0ad90b3c8e24fb70547a2386fc46fa8 |
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font_01_sfnt_off0000de6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE6A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f681.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF681 | 10868 bytes |
SHA-256: 3d6b165818552a80f25cb83121c1223c970cdb5715ab42117ee3cd55bbb06292 |
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