MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a ML classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm pointing to compromised WordPress upload storage and other disposable hosting, suggesting an attempt to redirect users to malicious content. The presence of multiple external URIs and a link farm indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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://vinaconexmec.vn/uploads/news_file/81139687753.pdf
- http://pro-group.ru/userfiles/file/bowafosiserojujoke.pdf
- https://nakipoglugroup.com/upload/ckfinder/files/kutusazemoroja.pdf
- https://theurbanthinktank.com/files/vuraburanidavutitilulewu.pdf
- http://fsanaq.com/upload/file/210903082138699470jrbbowtybflw.pdf
- https://bilalyapidekorasyon.com/userfiles/file/69596308641.pdf
- https://legend-chang.com/UserFiles/files/47844173228.pdf
- https://chungangroup.com/uploads/files/202109200215004254.pdf
- http://www.mariabeckmann.com/fotos/uploads/files/fonuzow.pdf
- https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/17682686122.pdf
- https://millvalley.com/wysiwygfiles/file/58163967112.pdf
- http://parbatsamajjapan.com/img/files/files/tisogabudebabagebabibokuf.pdf
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613e17fbbaa05---81899422847.pdf
- https://kujainspectors.com/candyticket/uploads/page_images/files/donezivisoziruzevelur.pdf
- https://resonanceacteurs.nl/userfiles/file/22479721649.pdf
- http://princeverma.in/uploads/files/84071493657.pdf
- http://maekuangudomthara.com/ckfinder/userfiles/files/fejabamakatubekezotevazo.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613dc2b02528e---nenukaloxe.pdf
- http://pokebarslo.com/uploads/files/najudopaperu.pdf
- https://mayersoffice.com/userfiles/file/vogitix.pdf
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613906dea72fe---xukevofak.pdf
- http://chaitraglaze.com/uploads/96360637356.pdf
- http://www.ecvbrass.ch/user/web/file/takase.pdf
- http://cafehinglung.com/uploads/files/defegid.pdf
- https://shevtsov-art.com/uploads/files/nesitimurutupuvetumikikod.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1613e5896d2079---murodagikazem.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=youtube+to+download+apk
- 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_off0000c76a.bin8daa72f0511267082b9f1f096e893b9ab3b2ec5e0e9006eb009ba320b2b1adcd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC76A | 10424 bytes |
font_01_sfnt_off0000df05.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF05 | 16792 bytes |
font_02_sfnt_off0000f717.bin0eaf3839a0ac0e277ac3a28dd21968ada907159b8355a92ed29d93e5c1906263 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF717 | 17372 bytes |
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