MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF 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 pointing to compromised WordPress sites, which are likely hosting phishing pages or malware. The embedded URLs suggest a tactic to lure users into clicking malicious links, potentially leading to further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073c38908e0e---welujubimepekinemisoda.pdf In PDF document text
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/7c8a5a4f946c93339b20184af7403f74/62273482561.pdfIn PDF document text
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b3bac3d73---dugekitadugubosugab.pdfIn PDF document text
- https://bangprice.combangprice.com/beta/cms_image/file/33177744308.pdfIn PDF document text
- https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/84a367f3e5640590e7a7df0aa707667a/lowalutojufozukoliletakef.pdfIn PDF document text
- https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084aaf1d3545---jivibagilageniboxowexatu.pdfIn PDF document text
- https://gionggiacam.com/ckfinder/userfiles/files/vopilorajubivisotutob.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606ff8519a00b---patalegirofelotewisif.pdfIn PDF document text
- http://jirehenl.com/userfiles/file/252244588248.pdfIn PDF document text
- http://asfalon.com/__files/file/sotejojiredasunokudozo.pdfIn PDF document text
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/c8fcf22pev3o6u7i2358n3orun/1618721955.pdfIn PDF document text
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607f2200c557b---rilefujid.pdfIn PDF document text
- https://bem-sa.com/img/file/gilagopukilum.pdfIn PDF document text
- http://mytmbc.org/fckimage/file/bifofopadebom.pdfIn PDF document text
- http://marthomaiticherukole.com/userfiles/file/32364471415.pdfIn PDF document text
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c86a4d285c---95707845625.pdfIn PDF document text
- https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/1f76795d75878ae0399fbccfb3ad54cf/sixatitemetilokomagum.pdfIn PDF document text
- https://fullmagicweekend.com/ckfinder/userfiles/files/pakedaxibamivepokolepot.pdfIn PDF document text
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/kg4uahtek8iog53i1i3kf3pi51/19868961347.pdfIn PDF document text
- http://am-assets.com/aom/magnolia/userfiles/file/nadeximixakano.pdfIn PDF document text
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/583e503d8e95243dad12cfc5673eb760/5080967010.pdfIn PDF document text
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afd0c5354e5---puwofebetili.pdfIn PDF document text
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/e3d56e3a56e90a93a56aecdcfcc620c0/35175857493.pdfIn PDF document text
- http://industrialdevices.in/uploads/vawaven.pdfIn PDF document text
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d2bb36ef8---benuvotaxiwejadused.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=the+last+word+exotic+hand+cannonPDF link annotation
- 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_off0000f158.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF158 | 10616 bytes |
SHA-256: 9e521fef8048fc05d7144351bd07825b9a5eac642eb707834711bb7ca6f024f1 |
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font_01_sfnt_off000109a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109A9 | 21132 bytes |
SHA-256: 2d79fa138469c98463b7504e10d081b22e93352f44ff767a39104e0e5b803714 |
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font_02_sfnt_off00013eb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13EB9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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