MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous URLs pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content or phishing pages. The presence of embedded URLs and the nature of the heuristics strongly indicate a phishing or malicious redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://krisoc.ru/uplcv?utm_term=cess+tax+meaning PDF link annotation
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6b07373d23---savoregiwepemujunonuf.pdfIn PDF document text
- https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/aa44e30856640bb656db814919fb14c9/wuronokororeweb.pdfIn PDF document text
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/q0kka1q0in1v6b3jgo051k58d2/63552660844.pdfIn PDF document text
- https://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/0c75ee920340d2ba6543e30915d4c77b/30102094859.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b1057ac3bf9---58379744107.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160796b2c66c7d---51156108066.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/f14ce4fdf5c77f3c001aa6b91a9c126b/farogok.pdfIn PDF document text
- http://edumedcare.pl/upload/files/vapuxojod.pdfIn PDF document text
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/v5it5c692qtirlcnplki98jhpr/45918154382.pdfIn PDF document text
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/6ee6dc3b9128a61c1ee510f75fd3947d/86619999459.pdfIn PDF document text
- https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/8fa0c1a13ac12e978b17a7fded1a23a6/pafotoforukujali.pdfIn PDF document text
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/1136d642a22e308721dbdea5c170e82f/tazofijoxor.pdfIn PDF document text
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b677962d1b8---62079210870.pdfIn PDF document text
- https://ajwatravel.com/wheelmarine/userfiles/file/57328751817.pdfIn PDF document text
- http://uk-finansist.ru/userfiles/file/49711333963.pdfIn PDF document text
- http://quinta.cl/upload/files/28788816569.pdfIn PDF document text
- https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/tj9l06usq01o7jq1u6q5orujqv/57345754107.pdfIn PDF document text
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160761fec9741c---86801001076.pdfIn PDF document text
- http://caratow.eu/userfiles/file/xewanetefenigikefipa.pdfIn PDF document text
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/16092dee10a4a8---96812866702.pdfIn PDF document text
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce31c60a0c5---46314599980.pdfIn PDF document text
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e320a49a80---wenametasemakep.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607c6b806c252---pojugofuvukavi.pdfIn PDF document text
- http://fandimnarodaku.cz/upload/file/38795334229.pdfIn PDF document text
- http://pathtojanna.com/userfiles/files/dosusu.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eab4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAB4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000102c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102C6 | 16536 bytes |
SHA-256: 1bca48151763eded275051277b12aabccbda0780c63f1c115289d0020a06ab25 |
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font_02_sfnt_off00012dc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DC0 | 10320 bytes |
SHA-256: 2c4dd7ccbb9a22c52f45f9d2cf059e73946db54cf7b0cd7b4ff3689cd9811712 |
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