MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the PDF structure and URL patterns are indicative of a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://laborke.ru/uplcv?utm_term=exerc%C3%ADcios+resolvidos+de+an%C3%A1lise+granulom%C3%A9trica
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/dc53b7f756ef7a226ac3f8f4e77cb63a/89136251566.pdf
- http://ahxxzx.com/userfiles/202105/file/15185422920.pdf
- http://theofficefurniturestore.com/ckfinder/userfiles/files/nibarobexuzimegoda.pdf
- http://sten.kr/club/data/userfiles/file/20210725170027.pdf
- https://alves.bg/ckfinder/userfiles/files/bopuzida.pdf
- http://kledingindex.nl/images/uploads/15548749463.pdf
- https://aawyx.com/sites/default/imageuser/file/gakox.pdf
- http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/c89f6d6d2d3f939a39d70aefc827b19e/vezudogib.pdf
- http://arcdesantmarti.com/biocop/Images/images-editor/file/25152019391.pdf
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/7171b1cf4bbfdba40bdf07a296a21386/zupatinozisepinoba.pdf
- https://mm-podium.ro/userfiles/file/92610287371.pdf
- http://dok-vo.ru/userfiles/file/pazopiwivefizofedegowizi.pdf
- http://aite-materials.com/upfiles/file/vetukopevozufagoxapeja.pdf
- http://yuhongzg.com/d/files/24077296915.pdf
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/8ccknja0mmibesrrjbbqab3ir2/menunavelap.pdf
- http://sanitaerprofi.ch/fckeditor/editor/images/file/9743716756.pdf
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e787a833e---33739716964.pdf
- https://fotofidelity.cz/userfiles/file/xujizexitevunul.pdf
- https://1877painters.com/FCKeditor/file/49238305366.pdf
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/ahrdbi8s1ie9olrfuboni7b4d9/wifizalinajevulelapaxa.pdf
- http://restorationteleconference.com/clients/73716/File/9826373646.pdf
- http://flambotour.it/themes/userfiles//files/2882220817.pdf
- https://shiphangnhanh.net/uploads/image/files/66738567722.pdf
- https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/ff94962e60959542904037518f196db3/davuzotukajixuj.pdf
- http://arniestribu.com/campannas/file/gaxaf.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000db48.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB48 | 16792 bytes |
font_01_sfnt_off0000f35a.bin3df32e11cd5c5fef210ada75a778935f72c92856e4966080876989ee7b5a1df2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF35A | 19288 bytes |
font_02_sfnt_off0001220b.bine6b6ebca3514993828295b77da704a68f17b3a12aff48e91feb0a617666a0f97 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1220B | 11360 bytes |
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