MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. Static analysis reveals it functions as a link farm, containing numerous URLs pointing to compromised or disposable domains. These links are likely intended to lure users into downloading further malicious content or visiting phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://queure.ru/uplcv?utm_term=administracion+de+medicamentos+por+via+oftalmica+pdf PDF link annotation
- http://degrossier.nl/uploads/file/53851879013.pdfIn PDF document text
- http://retroldn.com/userfiles/file/79298354887.pdfIn PDF document text
- http://fautographie.org/images/userfiles/files/mowalamefet.pdfIn PDF document text
- http://kutyasturak.hu/images/files/nevorogiji.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/76217638151.pdfIn PDF document text
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/f3arjl2rouaqfcfvr7f5gfijg4/xikigew.pdfIn PDF document text
- https://www.nrlandscapes.co.uk/wp-content/plugins/super-forms/uploads/php/files/878f2f5bb35b803b4e2ee6008de17085/tufubowa.pdfIn PDF document text
- http://poexali.org/static/image/_u/system/files/5182888599.pdfIn PDF document text
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca234215268---dukavuwuripoj.pdfIn PDF document text
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610102a0b073d---21138154879.pdfIn PDF document text
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/ac85c55e6fd893c823b6dc7d4944a459/pifis.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b3fc38ec23c---jikox.pdfIn PDF document text
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160a730031177d---7067698562.pdfIn PDF document text
- http://fujavietnam.com/images/Download/vavepuxefovesojonefafif.pdfIn PDF document text
- https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160858859cbf6c---gigukonerobixepewipe.pdfIn PDF document text
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f1097cc5bdd---34011919110.pdfIn PDF document text
- http://ithaca1966.com/clients/8/85/85e9e0a76fddb83d7689cebc6ab07fae/File/63040125326.pdfIn PDF document text
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/kqv1mbsl7oon8tuicmaq4o0lu6/zijijuzukeguxoxa.pdfIn PDF document text
- http://ikhmongol.mn/ckfinder/userfiles/files/8427313303.pdfIn PDF document text
- http://moto-bike.pl/userfiles/file/wikejurojizosiwedegi.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/16258723720.pdfIn PDF document text
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160829a45cee99---bizedizokin.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_off000105cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105CF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011de1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DE1 | 18956 bytes |
SHA-256: 700848df10dcd75b987abda6b4f286bfeb16bd0f481cb5a858496789919ff1a5 |
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font_02_sfnt_off00014df2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14DF2 | 10828 bytes |
SHA-256: 60f02ae441e76067f2e189796babaa53c1a2e04955de8bfa56c1300f7ba38fdf |
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