MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple links pointing to compromised websites, suggesting an attempt to redirect users to malicious content. The heuristic firings indicate a link farm strategy, likely to obscure the true destination and evade detection. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/11eb0c8cdf147900a03d21b648a276a7/perunidumu.pdf In PDF document text
- https://weborder.cloud/userfiles/file///wowubajila.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/16132ecc6c875e---92278272451.pdfIn PDF document text
- http://gradn.ru/uploades/fckeditorfile/84162362427.pdfIn PDF document text
- http://minhphucvietnam.com/uploads/userfiles/file/3519103547.pdfIn PDF document text
- http://projecthouse.bg/uploads/CKfinder/files/81840394863.pdfIn PDF document text
- http://nfraccon.org/userfiles/file/bivowox.pdfIn PDF document text
- http://pro-customer.de/userfiles/file/tipiwom.pdfIn PDF document text
- http://xn--tnqz8hz5cb8l.com/upload/files/31420943611.pdfIn PDF document text
- http://shiinamotors.com/js/upload/files/zorexagajuwusupu.pdfIn PDF document text
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132a1353b04c---59966634913.pdfIn PDF document text
- http://saharun.org/uploads/ckfinder/userfiles/files/98649385411.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/n984msoj9l6c1t43904kudivu3/629026483.pdfIn PDF document text
- http://xinxinhouseware.com/uploadfile/files/88216761787.pdfIn PDF document text
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133dd0c8d7c8---wapabigetikilavakixedi.pdfIn PDF document text
- https://bccphil.paramedix.biz/uploadfiles/file/xugarunobemu.pdfIn PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613808f44f986---sijaborudoj.pdfIn PDF document text
- https://autoandtruckrepair.net/nbloom/fckuploads/file/dosefopomimafiturojisuve.pdfIn PDF document text
- http://apart1day.ru/file/71645787208.pdfIn PDF document text
- https://kokomanis.com/contents/files/9174610461.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=download+obb+gta+5+mobilePDF 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_off0000c080.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC080 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d897.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD897 | 10684 bytes |
SHA-256: ceefe9e4e26c82e1fe2aab962b63167b08e42f2fc5440e915d27f2719ce9fa1d |
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font_02_sfnt_off0000f0e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0E9 | 16684 bytes |
SHA-256: 3a4b2636b92cea61bff3542702396b5916d305f53203e11c0e964f65f82ee8a9 |
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