MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs pointing to compromised websites, likely to facilitate phishing attacks or distribute further malware. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://synerhu.ru/uplcv?utm_term=exercicis+catala+4t+primaria+per+imprimir
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a9b885d77c3---3161352443.pdf
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160f44103c8fe7---sumabonotozibetibewotot.pdf
- http://shopexpert.com/app/webroot/files/userfiles/files/45297786098.pdf
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/33ae8a145ba8798a40040f5be2f11f5a/bexewilixibiz.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/eq4kfk0124vv6m4qgjinph6725/dalenediturep.pdf
- https://leo-translate.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16092d68b4daee---32167980890.pdf
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/ob7p17cm84ucafgdrla4da2c32/gabisifupog.pdf
- https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b4b983cd5---9282729579.pdf
- https://songhong-thudo.com/img/files/soperajolo.pdf
- http://cathyknightwaite.com/ckfinder/userfiles/files/fepivavoja.pdf
- http://am-assets.com/aom/magnolia/userfiles/file/limuzo.pdf
- http://cadelupo.it/userfiles/files/63115095525.pdf
- http://plafondchauffant.fr//img/user/file/593949553.pdf
- https://liur-krd.ru/userfiles/file/lanefudivogolinozew.pdf
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/bd4a3b8366aa7f94a1ecdda420239b1a/pifali.pdf
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/f5d556fd0a89840b692b6be0b8c78b33/kinofuwifavab.pdf
- http://vrtaspol.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/kaburorasofuda.pdf
- http://allgeology.ru/ckfinder/userfiles/files/19758787463.pdf
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086fc8ba8cc9---doxejizodek.pdf
- https://ajwatravel.com/wheelmarine/userfiles/file/82247366150.pdf
- https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3365539f8d1357a6ec2c73e657dec02c/pupolizosupufupetorasi.pdf
- http://am-assets.com/aom/magnolia/userfiles/file/tobuxebu.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_off0000d104.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD104 | 16792 bytes |
font_01_sfnt_off0000e916.bin61136533373a993df9aea13c47c06e6770e980fb4343ad609f2e9d4cc3fcf8e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE916 | 17980 bytes |
font_02_sfnt_off00011569.bine4f632619f8c0c5e0831bb0679e6efe3360f236981933b490facd0d88e3ed347 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11569 | 10472 bytes |
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