MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous URLs pointing to potentially compromised websites or disposable hosting, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' reinforces the attack pattern of using the PDF to redirect users to malicious content. No scripts were extracted, but the overall structure and URL patterns are consistent with a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://huntic.ru/uplcv?utm_term=carlill+v+carbolic+smoke+ball+co+case+brief PDF link annotation
- http://tbff-bygg.se/img/files/41285621852.pdfIn PDF document text
- http://toonesk.com/upload/zomekazevikeruxuborivev.pdfIn PDF document text
- http://bearings-home.com/userfiles/file/gozinodizetirinejafe.pdfIn PDF document text
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/16086245551bc9---pukod.pdfIn PDF document text
- http://tubietelbar.hu/uploadfile/41412955759.pdfIn PDF document text
- https://erdenetpost.mn/userfiles/files/zikimutopizidoma.pdfIn PDF document text
- https://qqhanoman.com/contents//files/vulumoxir.pdfIn PDF document text
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/okkbv7l48d95bsl3guutiolm5c/46046582955.pdfIn PDF document text
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f8aad271ac---mefuvinomu.pdfIn PDF document text
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/bhgjo12jg93ps92309qnot2hu1/gifavavexukupow.pdfIn PDF document text
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a97ff828e87---pozejimukavaveguz.pdfIn PDF document text
- https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/9ed9d3fdbbe7ea01a305b24c959ab20c/xomegasomudupobimozipe.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073c8ccc12b6---lobevovor.pdfIn PDF document text
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16080ea383f367---83443043369.pdfIn PDF document text
- https://butagallery.com/userfiles/files/pidisigixapopopabiwikose.pdfIn PDF document text
- http://usmleworkout.com/files/file/60907777371.pdfIn PDF document text
- https://barcelonacentremedic.cat/files/galeria/files/dezataworo.pdfIn PDF document text
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/252ab40b53661cca20103d6842463085/sizebi.pdfIn PDF document text
- http://sosnovgeo.ru/userfiles/file/nafek.pdfIn PDF document text
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096c844794e4---povefonuk.pdfIn PDF document text
- http://turar-mussin.com/userfiles/File/36654230006.pdfIn PDF document text
- https://fajndoktor.cz/images/file/files/tojesanekodopudorizom.pdfIn PDF document text
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b7240a61b9---giwib.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_off0000e870.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE870 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010087.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10087 | 10624 bytes |
SHA-256: 060632bcb2cd25ff0e24beb77da16d3c9cd27626fdb1f69db1bd038c7766c3d4 |
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font_02_sfnt_off000118e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118E6 | 16388 bytes |
SHA-256: 58a07f3d5b6c4785b0b462e66530b68d5ebd495f9cf8d2cc02b72e9145720ae9 |
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