MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple domains, many of which appear to be compromised WordPress sites or disposable hosting. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway scanning. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://queure.ru/uplcv?utm_term=action+movies+yts
- https://sk-elektron.ru/ckfinder/userfiles/files/gagegew.pdf
- http://pyhunlian.com/uploadfile/file/legudaxir.pdf
- https://burgaseguros.com/userfiles/file/82077807096.pdf
- https://www.clinicaepilepsia.cl/ckfinder/userfiles/files/85433088146.pdf
- http://www.azurwelcomeservices.com/userfiles/file/38329036818.pdf
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1614960dd13acc---41294193432.pdf
- https://srinivasagroup.com/ci/userfiles/files/68372554527.pdf
- http://hotelamadeustorino.com/userfiles/files/20111024159.pdf
- https://rcvizovice.cz/ckfinder/userfiles/files/naxupofatatidoxetoke.pdf
- http://designklasse.de/ckfinder/userfiles/files/16438887547.pdf
- http://architettoletiziamasciotta.eu/userfiles/files/goxipamozulop.pdf
- http://www.lircai.com/web/inline/file/repupurenur.pdf
- http://vetcasatenovo.it/userfiles/files/doxoja.pdf
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/161475076a8f01---jazipokiwa.pdf
- http://goldmustang.com/files/files/77212334338.pdf
- http://sherwoodchambergolf.com/ckfinder/userfiles/files/zapubogobeki.pdf
- https://sthouseluxury.com/upload/files/2410248201.pdf
- http://luijkzonwering.nl/image/file/1359886065.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1614ee8a41afa6---32116504464.pdf
- http://maremio.ru/admin/ckfinder/userfiles/files/mezixixisukamapikajosi.pdf
- http://fasson.vip/images/editor/files/62886740034.pdf
- https://mediaskills.rs/files/gawikotazupadovilogi.pdf
- http://balie.overeembv-profielen.nl/upload/files/jolinive.pdf
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/92f0c47b80e54697880cee5778b58469/forozipobas.pdf
- http://beveragesgs.com/userfiles/file/fopoboxax.pdf
- http://glassick.com/userfiles/file/19832779178.pdf
- https://rubin2000-distribuitorshop.ro/userfiles/file/lifakorodu.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_off0000b9c3.binf6d575bfc91a35380e16237cf5b7b46890947f9aa51815efde21d723874ac9d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9C3 | 17724 bytes |
font_01_sfnt_off0000e7b8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7B8 | 16792 bytes |
font_02_sfnt_off0000ffcf.bin6b4bcb383551cd44c692905117c5f3de7ea0e6ee48022ca16fd46fb2c3350548 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFCF | 10244 bytes |
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