MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a phishing or trojan threat. It contains a link farm pointing to multiple compromised WordPress sites, likely intended to host and distribute further malicious content. The presence of external URIs and a link farm structure suggests an attempt to redirect users to malicious downloads.
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://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/b0a5cc28af2c7bf4fe72a0e762ce0548/fejubolof.pdf In PDF document text
- http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a43d7a4221e---popoli.pdfIn PDF document text
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160805e65612c6---81076021870.pdfIn PDF document text
- https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/992e33b5d407c3df92f7286599626d18/loxapuvufageteworiw.pdfIn PDF document text
- https://prosperitas.be/data/assets/file/bekaketuvotajewenemevoti.pdfIn PDF document text
- https://caribemed.com/userfiles/file/nozis.pdfIn PDF document text
- https://kozhikodedeaf.org/admin/my_files/file/13413690881.pdfIn PDF document text
- http://renovator.cz/files/file/61178098692.pdfIn PDF document text
- https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/1ca7e8206c5fbcd1610094fcceda98d0/16986751879.pdfIn PDF document text
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609007072d10e---supozilapepoz.pdfIn PDF document text
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160749bc56012d---63981854881.pdfIn PDF document text
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608f6c72684c9---fewukuwinajavizapiz.pdfIn PDF document text
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/4aece028b5a85b685aee6907f6e8f8f9/zamunelitizepudowofoxa.pdfIn PDF document text
- https://baobihungphu.com/media/ftp/file/xifutegofiseximajavujone.pdfIn PDF document text
- http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609719604c0e8---48711781940.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/51069866521.pdfIn PDF document text
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/g74rh5atrgtk8bpbpma5ndut4q/futegenixujig.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=aerobask+eclipse+550+freePDF link annotation
- 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_off0000eef7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEF7 | 5468 bytes |
SHA-256: 58c27105a1ed89bbf3be033503f14f2f124456a387ff1fe12fd8c564451d7006 |
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font_01_sfnt_off000101a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101A6 | 12152 bytes |
SHA-256: 1dd707b55bf42218c8d8581265b27e269778fa9f355a63d54bed110717bbd563 |
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