MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. Heuristics indicate the document functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS uploads. The presence of numerous unknown URLs suggests a distribution or phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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 http://eta-aus.org/userfiles/file/20210808193320.pdf In PDF document text
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/nripe8ipu5qo0hfsmgl1t9rco2/87636874374.pdfIn PDF document text
- https://intersat.lv/files/file/nitedapotenexoz.pdfIn PDF document text
- https://linhquan-group.com/upload/ck/files/vosagupamanir.pdfIn PDF document text
- http://etoprosto.ru/ckfinder/userfiles/files/13175761783.pdfIn PDF document text
- http://jdhs77.com/clients/58520/File/pesub.pdfIn PDF document text
- https://ndmoyun.com/calisma2/files/uploads/dutijuwepoxomubo.pdfIn PDF document text
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a121dace103---wutomabinaz.pdfIn PDF document text
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/ae1449d66e78f3690e32c2d83b84789f/bireliserow.pdfIn PDF document text
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/a60d8234a7bd66c416f07b67c2cc4d9d/digolevasubavewefu.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160e7bedade220---77090040100.pdfIn PDF document text
- http://kramor.bg/userfiles/file/96054521676.pdfIn PDF document text
- http://www.toptehnik.si/images/72852706513.pdfIn PDF document text
- http://nwatchonline.org/userfiles/file/fazukuwigalewuwikibun.pdfIn PDF document text
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/71b2c448612d71f85c385acf0bdcafde/wolowux.pdfIn PDF document text
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f6563030ab---29681602596.pdfIn PDF document text
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3fca7af52---71023703988.pdfIn PDF document text
- https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/njj8rcimu5e7r80qkmk72r3hg5/doliw.pdfIn PDF document text
- http://pm-property.pl/userfiles/file/62322151304.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/8f807fed5180711acf03d50076f90fb6/fonipujik.pdfIn PDF document text
- http://dui-antidote.com/images/userfiles/file/83636379627.pdfIn PDF document text
- http://dyneco.kr/userData/board/file/bozodewulakusepimese.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=schindler%27s+list+theme+violin+pdfPDF 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://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_off0000df3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF3B | 18584 bytes |
SHA-256: 25ce9bfe393219e76a8e306f7fe07886190af029e97856b1fa6b31a049f8e360 |
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font_01_sfnt_off00011098.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11098 | 10896 bytes |
SHA-256: 84f2e9045cfd260bdd2e9f345d34095b0ce70db4bf795eeaaf435a30419bd6af |
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font_02_sfnt_off000129a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129A9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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