MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress upload directories, suggesting it functions as a link farm to distribute malicious content or phish users. The PDF structure itself is heavily obfuscated, and the document body is unreadable, further supporting a malicious purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16099c82438042---25651286918.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160b0a768c68c2---65938750187.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d1907f7bc73---74120710755.pdf
- https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609adf83261dd---39222476499.pdf
- http://eros-arena-reutlingen.de/eros/userfiles/file/rixosefamed.pdf
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d62731541f3---luvadurijibowazokofomunel.pdf
- http://self119.net/upload/userfiles/2021/05/files/210529144232.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/6k5rbch28d3uosigs8c1ri481h/vifozewirodijor.pdf
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/24i1n24nenkr3hu9tc0hjf6hm1/30380415090.pdf
- https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/vegatajumuxilumuxovimifi.pdf
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc9477e30a6---webozire.pdf
- https://agronlogistics.com/userfiles/files/81021370211.pdf
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/dc339cf4a7e3a738a82c8e82c7b9ef02/luvaxilom.pdf
- https://deesudcoolingtower.com/userfiles/file/48123544816.pdf
- https://binarbaidrealestate.com/public_html/userfiles/file/pesupekifakonibararifane.pdf
- https://alarrabnews.com/images/content/content/file/40741993612.pdf
- https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/727982df5378fe3dcebad20c58bd9031/84078483713.pdf
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/94156dd9d76f66bff79f0482b6ef0ce8/vewodowetikan.pdf
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5da50d088---lepezuvopi.pdf
- http://suvagcentr.ru/userfiles/files/dozireg.pdf
- http://tokstar.com/_UploadFile/Images/file/zogidubasefajepuj.pdf
- http://www.contectrade.hu/fckfiles/file/35057147266.pdf
- http://rltclassof1970.com/clients/8/8f/8ff9f19c840b982a6efda18ba8bb483c/File/80868738094.pdf
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b21d374ade8---jemulutere.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=you+served+well
- 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_off0000cbe2.bine6e78a04593cadaa65d658cd063ff7b1cfad3b71d5f0bc5101354fb939381174 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBE2 | 17272 bytes |
font_01_sfnt_off0000f903.bin3eb16356a1379c4917a09a0c1ee1f71cee219689303c511c9c96134c92af7d05 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF903 | 10020 bytes |
font_02_sfnt_off00010f74.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F74 | 16792 bytes |
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