MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document functions as a link farm, with numerous embedded URLs pointing to compromised WordPress upload directories. These links likely serve as a distribution point for further malicious content or phishing pages. No scripts were extracted, but the structure suggests a phishing or malware delivery lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://synerhu.ru/uplcv?utm_term=winter+words+that+start+with+u PDF link annotation
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613ff6b6769e8---sometomubefigoravup.pdfIn PDF document text
- http://triple-a.co.th/ckfinder/userfiles/files/vuxojogugixuwudelalosubow.pdfIn PDF document text
- http://aivieksteslaivas.lv/userfiles/file/xevubatux.pdfIn PDF document text
- http://bakineshr.az/ckfinder/userfiles/files/lawesakinis.pdfIn PDF document text
- http://rfaaa.com/UploadFile/file/20210909220710348.pdfIn PDF document text
- http://alexlunacoach.com/img/editor/file/45925896248.pdfIn PDF document text
- http://gearcon-eng.com/file_media/file_image/file/xikaxirosomewivop.pdfIn PDF document text
- http://edilgroupdigiovanni.it/userfiles/files/pelopoponoxetuvunukod.pdfIn PDF document text
- http://rentappli.com/tinymce/jscripts/tiny_mce/plugins/phpimage/phpimage/upload/images/file/68516417033.pdfIn PDF document text
- http://bikaji.zohukum.com/ckfinder/userfiles/files/nugonivu.pdfIn PDF document text
- https://intrastorg.com/userfiles/file/fijugoxeder.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/161409b2f71195---vasute.pdfIn PDF document text
- http://familiehollander.nl/images/uploadedimages/file/70036642921.pdfIn PDF document text
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/fbt5vn9h8s6rs7bmr9h87kmi6d/35620658127.pdfIn PDF document text
- http://www.maderas-navarro.com/ckfinder/userfiles/files/ditujudexogegejironubifi.pdfIn PDF document text
- http://smenergy.kr/uploaded/file/4849606446135bd78e1de7.pdfIn PDF document text
- http://www.espace-hotelier.com/ckfinder/userfiles/files/36576759483.pdfIn PDF document text
- https://yuktogel.com/contents/files/noxawusewa.pdfIn PDF document text
- http://vanharteyoga.nl/uploads/files/43919408171.pdfIn PDF document text
- http://apexibd.com/uploads/fck_uploads/file/lagarafutogimojokexo.pdfIn PDF document text
- http://fratellilongoni.com/userfiles/files/17293259269.pdfIn PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613661d1db3dd---60232900459.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_off0000f0f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0F1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010908.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10908 | 10476 bytes |
SHA-256: ce72a113ce5799b221c96791c454a9bfd9e35ff6b8a1e5bf04aa470d452f36c5 |
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font_02_sfnt_off000120db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120DB | 18092 bytes |
SHA-256: 44e055260f8900574d884cfa447aecded80b7fcf7de04ec780b7cd6d03fafbb7 |
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