MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content. It also contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16097e7bfdf895---kilumejobita.pdf In PDF document text
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/84ff2da70a36aa6a26c56dc161629233/84078613798.pdfIn PDF document text
- https://betentour.com/sites/default/files/file/lojiximetasuve.pdfIn PDF document text
- http://446888.top/userfiles/file/83318183735.pdfIn PDF document text
- http://fixafilm.se/userfiles/file/31426717870.pdfIn PDF document text
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/chlmllh0r1ue9tfbt9479l64g0/retuju.pdfIn PDF document text
- http://www.mearesandassociatesllc.com/siteuploads/editorimg/file/buwuvejagelemipivufudena.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/4f89a4a165ec1402a26eafe272969412/teforewozijinijog.pdfIn PDF document text
- https://travelworld.ro/userfiles/file/jowej.pdfIn PDF document text
- http://doer-sh.com/Uploadfiles/files/fubore.pdfIn PDF document text
- https://its-bulgaria.bg/files/file/64710843874.pdfIn PDF document text
- https://wulf-sanitaer.de/wp-content/plugins/super-forms/uploads/php/files/s9kopurqbcmnma04hbmge6jh7b/fuwojexusotuk.pdfIn PDF document text
- http://darec.sk/files/files/62514531899.pdfIn PDF document text
- http://www.ih-consultant.com/ckfinder/userfiles/files/50856725746.pdfIn PDF document text
- http://andlupa.com/userfiles/file/lukawomimipiw.pdfIn PDF document text
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607e28a9da1e8---fapizotojuwik.pdfIn PDF document text
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/e3a040564a6e005d9bbf53b9e6c514f7/fovexezipamifej.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1609d9a42eb526---kuvajibokizedum.pdfIn PDF document text
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/20c1868f61ab6be1e549be904c405c67/jakek.pdfIn PDF document text
- https://www.albispanaderia.com/wp-content/plugins/super-forms/uploads/php/files/75a2f0a17825b245a04a91219db81795/36039452150.pdfIn PDF document text
- http://langmoon.jp/js/upload/files/91550457646.pdfIn PDF document text
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/if593sc2hgolgc651a3nncedk7/womixapobirusugozurupave.pdfIn PDF document text
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160805d6d6f4d0---34457146532.pdfIn PDF document text
- https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/488d861d36dba89365c2d0028a1f775a/gukubuvawazeluxilozewe.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=top+400+asset+managers+2020+pdfPDF link annotation
- 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_off0000e444.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE444 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fc56.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC56 | 17296 bytes |
SHA-256: b1ed5cc91d0ef2e9941c7925ee77c6ce323037bb7b1f56adc5609ee3334de37b |
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font_02_sfnt_off0001297d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1297D | 10988 bytes |
SHA-256: 67800eb12b8153de305dd9e71ad46f7c945fd1dde2652b04a6946ac700d5d46a |
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