MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed for malicious redirection. The ML classifier and ClamAV detection strongly suggest this PDF is malicious, likely serving as a lure for phishing or malware distribution. The presence of multiple external URIs and the 'link farm' heuristics confirm the primary attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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 https://infrive.ru/uplcv?utm_term=tndte+time+table+pdf+download
- http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/160974918448a9---piwulufedegutujopixi.pdf
- https://dichvumayphoto.vn/webroot/img/files/zaxebilozidojurusito.pdf
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/401c88ac30374c4a03c7d925793b38be/11482841913.pdf
- http://kovove-ploty-brany-zabradli.cz/UserFiles/File/dunewigepebuzobumi.pdf
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b6a4f48e4e---13950146042.pdf
- http://clarklawtexas.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/58485473217.pdf
- http://travelport.pl/userfiles//file/2759208095.pdf
- https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091437ca1c3d---18125847323.pdf
- http://sshs1962.info/clients/3/33/33dcd814b32da85629335a95ab3d0158/File/jiwotanire.pdf
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606c78e1749b6---66348959099.pdf
- https://lrsinc.co/userfiles/file/sojodesajesosig.pdf
- http://izdo.org/img/userfiles/files/77592405912.pdf
- http://gfhs1978reunion.com/clients/56625/File/62829629715.pdf
- http://www.bash.cl/media/file/dagalode.pdf
- https://balajihighfields.in/userfiles/file/33185805207.pdf
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/dba53b812e00995701f3b4c9c879177e/xedunamulexe.pdf
- http://upperdublin1970.com/clients/3/3b/3b2fb281f4756d03d37a29c41a8c1d95/File/garogasajifevonekup.pdf
- http://nova-auto.com/upload/paxamakagix.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/160acaf64f3e98---33083382932.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/d00e57590aa568162b842d0b4c267d93/5176898255.pdf
- http://debnine.net/UserFiles/File/xapuwidapo.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160778184c3ab7---baranetukonugoxifabi.pdf
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1610a452ae8fd2---bozoborol.pdf
- https://florerialafloresta.com/ckfinder/userfiles/files/79249044563.pdf
- https://dimensionshoppe.com/alpha/ckfinder/userfiles/files/91091018864.pdf
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b096083ed12---tusoxonedebatobodapuzim.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_off0000dd4b.bina3d30cbf94759049690389ccad5bd1f77f5113e3afac11ece4636b9d1d8f2d23 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD4B | 17512 bytes |
font_01_sfnt_off00010b1e.bin0aab101f17450ec0063bc5525171587984ee286a533c7f7dd4c2c249a4021bdb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B1E | 10580 bytes |
font_02_sfnt_off00012304.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12304 | 16792 bytes |
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