MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites acting as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The embedded JavaScript is a common method for initiating malicious actions within PDF documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/16093aff1c95d7---25840927133.pdf In PDF document text
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/3201fe25945d3976f0a00a84d33a7035/porisalil.pdfIn PDF document text
- http://sbs-group.co/userfiles/files/tuleletolibor.pdfIn PDF document text
- https://akita-inu.lv/www/files/files/77372515170.pdfIn PDF document text
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/g01flikqv328p68qcq3qrj9oi6/gilejifabibo.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a780efb1dd3---18129743906.pdfIn PDF document text
- https://aplusadvance.com/naver_editor/data/file/85053487195.pdfIn PDF document text
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/av3s729sms1i5l4gc3dd5b6l78/wadezijinetebigusasajurin.pdfIn PDF document text
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/7050a27caac46107966bba15e2fddf07/sulaxitaru.pdfIn PDF document text
- http://webdulich.com/js/ckfinder/userfiles/files/55624210741.pdfIn PDF document text
- http://www.colormotion.cz/UserFiles/file/61240331429.pdfIn PDF document text
- https://samsungklimalar.com/upload/ckfinder/files/pemuxedowometubi.pdfIn PDF document text
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/241864e018d592dba0884219df23e609/kudirus.pdfIn PDF document text
- http://www.deep2001.com/images/library/File/bomumivuzu.pdfIn PDF document text
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf37aaca28---74032557410.pdfIn PDF document text
- http://xn--2-140-swe8h.xn--p1ai/files/57630648920.pdfIn PDF document text
- http://beijingxinzhi.com/userfiles/file/20210507055354_1920228560.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/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=from+inquiry+to+academic+writing+4thPDF 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_off0001199c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1199C | 5504 bytes |
SHA-256: 129e9c86fc32f2906fbc9079869d275d1b57180c909a84fb47ab5b19cff67bb1 |
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font_01_sfnt_off00012c41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C41 | 10700 bytes |
SHA-256: 7dc54f5486335555430489aec5fe0d42b1a474d398a24af75b215dc8fd15fca0 |
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