MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. The document contains a large number of embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the nature of the embedded links and the overall structure strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://laborke.ru/uplcv?utm_term=modern+approach+to+logical+reasoning+rs+aggarwal+pdf
- http://aokisuper.com/ckfinder/userfiles/files/wexifafexiniparusokat.pdf
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f6350abcd12---timaxor.pdf
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097e86463ca0---konuzolesiwifodojapavi.pdf
- http://domesticsolutionsagency.com/userfiles/file/19037802296.pdf
- https://abugfreemind.com/userfiles/file/72829100201.pdf
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160875a2925e5b---zewobitadujuvefazenufosad.pdf
- http://goddesshair.net/upload/users/files/75819808203.pdf
- http://tischlerei-schlusche.de/sites/default/files/file/pasorigejagugumipuwujes.pdf
- https://ankaratemizlikcim.com/depo/sayfaresim/file/99297527201.pdf
- http://lncxjzxxw.com/upload_fck/file/2021-5-23/20210523124906444020.pdf
- https://klcmekatronik.com/ckfinder/userfiles/files/58237084297.pdf
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa5ef0db2c---fuvejupiroxawutijufiroxa.pdf
- https://gymlesgeants.com/upload/editor/file/geriwamidivumerijemenobu.pdf
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a905f11c069---bolajugumi.pdf
- http://wsp.pl/userfiles/file/36277463773.pdf
- https://www.nrlandscapes.co.uk/wp-content/plugins/super-forms/uploads/php/files/8ed482295706bfdc536c781898084908/89246401272.pdf
- http://www.awakohchang.com/image/upload/File/ulexe.pdf
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2619299205---75058486335.pdf
- https://vietspices.asia/uploads/files/64842575757.pdf
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9ef1acdd62---pivuxo.pdf
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160737a29990f9---dofosoduweponivaniv.pdf
- http://dogninja.com/userfiles/files/podemonomitaguz.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_off0000c6d2.bin09bcc95156e42fb5ab12390d6b64771215cb40625412c3dfb714252d3ebc606e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6D2 | 19320 bytes |
font_01_sfnt_off0000f929.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF929 | 16792 bytes |
font_02_sfnt_off00011140.bin50098ef9ccdbdce5f783964038a4d6ecc416cce5da1edd894130f442cda8b9c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11140 | 10976 bytes |
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