MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution scheme. The presence of external URI links and a link farm structure further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://crysiq.ru/uplcv?utm_term=download+house+flipper+android PDF link annotation
- http://aven.su/userfiles/file/vatofudiw.pdfIn PDF document text
- http://dunakeszi.varosom.hu/userfiles/files/vekumisujapopojup.pdfIn PDF document text
- http://zdravi-kromeriz.cz/files/file/gosisedare.pdfIn PDF document text
- http://akgwealthplanner.com/crm/files/tanoduxewosadopi.pdfIn PDF document text
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/161341d428caab---94516581228.pdfIn PDF document text
- http://buyyoutubelikes.com/ci/userfiles/files/33651832483.pdfIn PDF document text
- http://ramenhajimetustin.com/uploads/files/xejivo.pdfIn PDF document text
- http://collectifff.be/imgdb/accueil/files/xibuludejiwe.pdfIn PDF document text
- http://hissekurban.com/resimler/files/revuvazo.pdfIn PDF document text
- https://vildmarksjagt.dk/userfiles/file/48018492788.pdfIn PDF document text
- https://piauiaqui.com/ckfinder/files/7082013977.pdfIn PDF document text
- https://komunalno-vrgorac.hr/files/10776923211.pdfIn PDF document text
- http://peetersinstallatietechniek.nl/upload/files/zazus.pdfIn PDF document text
- http://artpolinakuzina.ru/pict/file/64303252699.pdfIn PDF document text
- https://ayurmitra.com/files/file/zefosazotibafa.pdfIn PDF document text
- https://asiantms.com/ckfinder/userfiles/files/kedivut.pdfIn PDF document text
- http://woodbridgeabw.com/uploads/files/zuputewogemanovoledi.pdfIn PDF document text
- https://global-product.org/CKEdit/upload/files/ladenifapuxopelup.pdfIn PDF document text
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/536726c93b60e65e2e2de87f29030741/87261463740.pdfIn PDF document text
- http://lingvastar.z-i-g-z-a-g.com/userfiles/files/padufosipiforetexolato.pdfIn PDF document text
- http://pc-driver.ru/userfiles/files/vibafozopewuwateja.pdfIn PDF document text
- https://candica.pl/ckfinder/userfiles/files/lejimenasatamavoj.pdfIn PDF document text
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/7de42d6601b75dc2f08907478ecaa4b8/28725570086.pdfIn PDF document text
- http://co-wemart.com/careeruserfiles/file/3076569239.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_off0000b5be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5BE | 15720 bytes |
SHA-256: 41ea2e0b870b5ce7b05f53a0dcfa310f7c5f0cde873d5eba156213266691e4cf |
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font_01_sfnt_off0000dd4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD4C | 10684 bytes |
SHA-256: a05b098df5ee898434be93d0658b34f72b72d235f266044e2c2bd9d6fe298d9a |
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font_02_sfnt_off0000f5b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5B9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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