MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress sites, suggesting it functions as a link farm for phishing or malware distribution. The presence of embedded URLs and the structure of the PDF, which appears to be generated by wkhtmltopdf, further support its role as a lure to external malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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://pistant.ru/uplcv?utm_term=summary+chapter+1+the+great+gatsby
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609e80c0b5a16---58534990286.pdf
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/3b2ee2542e92aaeaf840b3f14eac82b3/58238502684.pdf
- http://soepcentrale-dekeyser.be/userfiles/file/jazesisulakominanogewe.pdf
- http://autodilykanka.cz/cmsimple/images/file/pepefosu.pdf
- https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/e8svbcvt4bbcfd4oom3g3qlhs8/najumijugadak.pdf
- http://mwflower.com/upimagesfile///26052422626.pdf
- https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5da63b0c84ffd8c36f857b4e35cd482a/6963556368.pdf
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/ffdee44644f642f7bc029b378abc5ced/pajezikexumajiki.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a6f4df3362---lorumarum.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b821f3212b8---welojumew.pdf
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16075cdd77177f---xuwapugu.pdf
- https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ab634068196---50364917343.pdf
- http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160707df00b481---8402639940.pdf
- http://kovacsoltvaskerites.hu/images/file/dotonewosuluwi.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aae67ad2922---fesusozewabofulajijin.pdf
- http://www.bluewhaleline.com/image/upload/File/sujupuxor.pdf
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607951941d721---83627974957.pdf
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7d6a99608b---37470467109.pdf
- https://tenfci.org/userfiles/file/22529730864.pdf
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/39f6e25287fadaa610bf0c2efe57524d/derusadaw.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/3691d84bb319e914fdf9a7b50dc255da/59217564787.pdf
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1fb778a544---63377620495.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_off0001fcb5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1FCB5 | 16792 bytes |
font_01_sfnt_off000214c7.bin6f737291c7c0fd1f8c2db771844255cc2e223dd6e5ab808142395982e5c369e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x214C7 | 19016 bytes |
font_02_sfnt_off00024505.bin884808ceb355e68148012e63e28f8335b91e44f46db0abe4510f5cc58452ec28 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x24505 | 10940 bytes |
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