MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains numerous URLs pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and compromised CMS upload links strongly supports a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://medvor.ru/uplcv?utm_term=free+vidmate+app+download+install+new+version PDF link annotation
- https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a528f1ec04---rinefixamivikib.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae01670f00d---mifisixividunika.pdfIn PDF document text
- http://thunderstar.cn/userfiles/file/20210505103424784930916.pdfIn PDF document text
- http://kapelski.pl/userfiles/file/78741053419.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/16082bd9035693---24760565930.pdfIn PDF document text
- http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/16072d3537c328---65500507967.pdfIn PDF document text
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160909a5fd4446---ponakezavabukogowepelu.pdfIn PDF document text
- http://ciaooo.ru/uploades/userfiles/file/49538662641.pdfIn PDF document text
- http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c027fc39c3---70682533704.pdfIn PDF document text
- https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a2ac7823814---dolanoxokojovemewukajara.pdfIn PDF document text
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a26c48a0567---jisonebabolutatotan.pdfIn PDF document text
- http://alhouti.com/userfiles/file/wikozesug.pdfIn PDF document text
- https://szabobuszrendeles.hu/files/files/puzogiwokizabaxejuz.pdfIn PDF document text
- https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/d5da4f807677a050fa225187a6a7b38c/pewupivukavuz.pdfIn PDF document text
- https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091fb6fc06b2---tumilidejoburotijogapelu.pdfIn PDF document text
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609843047eb62---purijusawagigub.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e48c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE48C | 5000 bytes |
SHA-256: 49f1a050a32cab171902fe4955ea1fcd2cccdfd8d8ce38b556e28a7e38cb7562 |
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font_01_sfnt_off0000f57c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF57C | 11644 bytes |
SHA-256: c17972e199a2ecd12d86fdb2b1ad88393d00bc636049e34ae00567a151cdeee2 |
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font_02_sfnt_off00011c81.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C81 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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