MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm hosted on compromised WordPress sites, with numerous URLs pointing to PDF files within plugin upload directories. This suggests the PDF is part of a campaign to redirect users to potentially harmful content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9820
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://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5f81e46c55---27919855954.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/4ece19e49469a16bbc163d8b674694d8/96395357483.pdf
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/2d3oe7p3sccb9qo2i1ate6mdlo/18814585962.pdf
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/udljj7mgc4imd2bvndnibd9egj/bagopodudov.pdf
- http://gabortech.comadmin/file/78708186270.pdf
- https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/1q51mp5uu4pmp18ua6tugpsj9v/16809802354.pdf
- http://miraesusan.com/ckupload/files/safapogi.pdf
- https://londonvipchauffeur.co.uk/wp-content/plugins/super-forms/uploads/php/files/26d46ade7e4975b5ce120e9038a50239/retivuge.pdf
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9c006c2f3b---63753591765.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1608a461817d0d---18769108637.pdf
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/c6mil871n29d1ve7q0r3qeq1c5/seleselujazasefilul.pdf
- http://tanriovermensucat.com/uploads/genel/files/pezunalefefe.pdf
- http://washchienluoc.com/upload/file/satabojewajaduluvoradixoz.pdf
- http://dahchen.tw/userfiles/files/divulus.pdf
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfc3464fd11---77168324101.pdf
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f183fedd27---xanunejoxulevekos.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a01cf09561a---35629061911.pdf
- https://thefertilizergranulators.com/d/files/85622670797.pdf
- https://otartufo.com/ckfinder/tartufofiles/files/81818968482.pdf
- http://funperm.ru/content/file/satab.pdf
- http://ajivikafinance.com/userfiles/file/18136442371.pdf
- http://vhs1962.com/clients/b/b9/b967f936f519796c2a696a6ed1da67f9/File/37649582409.pdf
- https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609f35d35cdf1---78299898387.pdf
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad48220b51---82263585237.pdf
- http://pvvc.cz/files/kunuludimusafudoredotomu.pdf
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d30ac7e681---samedererupetoduvekugo.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=finding+x+problems
- 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_off0001149e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1149E | 16792 bytes |
font_01_sfnt_off00012cb5.bincc894b9e5c7cd45b76b144e1fb25214632d17035b6f41371f8262a3250cf5a08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CB5 | 10696 bytes |
font_02_sfnt_off000144aa.bin5dd4a7cf4f8fe24ab2196cd72cda6bf15e0b5f157d098a6422ce7a08d79d5950 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x144AA | 17168 bytes |
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