MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that function as a link farm, directing users to various external sites. Several of these URLs point to compromised WordPress installations or disposable hosting, indicating a potential phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://synerhu.ru/uplcv?utm_term=the+legend+of+zelda+android+download
- https://iwistw.com/upload/files/97002072244.pdf
- https://tagoproperties.com/ckfinder/userfiles/files/25029388202.pdf
- http://ventilyatsia-v-sochi.ru/ckfinder/userfiles/files/dotadekux.pdf
- http://shinies.ru/img/lib/file/61541759099.pdf
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134a26e8b083---36723121987.pdf
- http://tottazo.com/userfiles/file/kepilotukagabesovud.pdf
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/34344d38509c5f956eaec0e1c8d3795d/logadakimop.pdf
- https://www.traitagri-solutions-alternatives.fr/ckfinder/userfiles/files/70425257472.pdf
- http://matras-devison.ru/upload/file/joxelelel.pdf
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16136b76d157d7---fovusovajutimutotuzajawoz.pdf
- http://msiutilities.biz/documents/82037684482.pdf
- http://ecohort.com/userfiles/files/51315597951.pdf
- https://martabaktelor.com/contents/files/84339990414.pdf
- http://chapaconoticias.com/assets/ckfinder/core/connector/php/uploads/files/8657231310.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161374e18d59f5---60658186999.pdf
- https://nyig.com/files/file/69775893962.pdf
- https://lecourbe.dk/userfiles/file/jofedixinobudili.pdf
- http://vonschickenfremont.com/uploads/files/34318713063.pdf
- http://kleinschadenexperte.de/userfiles/file/jerugadoxipavigevip.pdf
- http://nousgarage.com/userfiles/file/mogikepulanivefexirowame.pdf
- http://wmc21.com/ckupload/files/15521501403.pdf
- http://czminghe.com/upload/files/82268270580.pdf
- http://vektor-bezpeki.com/userfiles/files/8294653527.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_off0000cc1a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC1A | 16792 bytes |
font_01_sfnt_off0000e431.bindf5c26079854ae882b65c5689dc234c59560a6e905ecb82f518b1409bb2f690b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE431 | 10476 bytes |
font_02_sfnt_off0000fbc5.bin63f344b900f136930433a78de2029a4ff36bab6a2a610a741e932f09b05ee19c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBC5 | 20304 bytes |
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