MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress sites and potentially disposable hosting domains. The embedded URLs suggest a phishing or malware distribution scheme, likely disguised as a lure for downloadable content.
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://archism.ru/uplcv?utm_term=afcat+solved+papers+ebook+free+download PDF link annotation
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16072d7a28463f---xuduribovukunipanarojo.pdfIn PDF document text
- http://master-sign.ru/ckfinder/userfiles/files/30707133969.pdfIn PDF document text
- http://tivatijapan.com/uploads/userfiles/file/74905846825.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607414aef40d5---xikijimalud.pdfIn PDF document text
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/696b7b861f17ec175278bb65b9bc22d5/mevosudajuzemo.pdfIn PDF document text
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/448d195cd0b95db495a75be850393fd5/99980906266.pdfIn PDF document text
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/284ee93c6607da5b5e378895bb893160/zumivosowuviw.pdfIn PDF document text
- https://lastcallslc.com/wp-content/plugins/super-forms/uploads/php/files/99bf041dc5560d5d1b6804016ec06137/luguripuzujovov.pdfIn PDF document text
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ce9e0b6456c---64855697507.pdfIn PDF document text
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/1571667b9914c3d8a28382288a46971f/deguxitamabugukuzatilam.pdfIn PDF document text
- http://sbnjl.com/userfiles/files/moxarexatelevuxivunek.pdfIn PDF document text
- http://tourister.kr/userfiles/file/57538168986.pdfIn PDF document text
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/16079ddbf106ca---gibipomezisuperari.pdfIn PDF document text
- https://okazdedziecko.pl/_files/Media/file/miwefuwubodapisigawiruxas.pdfIn PDF document text
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092a4a112bc7---mulaveji.pdfIn PDF document text
- https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/cjgqps7lmk1elnhhulr7dplo51/mirevapugeke.pdfIn PDF document text
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160702ce9af9cb---2783124909.pdfIn PDF document text
- http://cupta.org/userfiles/files/20210624145900.pdfIn PDF document text
- http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16099c6fe3ee11---pifelofemovopewisofozo.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/a5c5e2b2bbbd41fb9cc43e555e42ac41/28402220703.pdfIn PDF document text
- http://marketherballize.com/ckfinder/userfiles/files/mivuguxeradufazofog.pdfIn PDF document text
- http://dnepropress.net/files/file/7227295358.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077969693f59.pdfIn PDF document text
- http://caratow.nl/userfiles/file/fugosi.pdfIn PDF document text
- https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607bcad9374cf---wefewinuzopodixipoga.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_off0000f23a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF23A | 16600 bytes |
SHA-256: 59357122457fed1f6714943f55f7aaa9a535e87506e68041626f9f9b8429ba85 |
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font_01_sfnt_off00011d79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D79 | 10884 bytes |
SHA-256: b64efa6db9c4c02020608cf54f72e5e8f8fe3439da26066419e8d1be75a5b080 |
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font_02_sfnt_off000136b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136B4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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