MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed for SEO manipulation or to distribute further malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent. While no scripts were explicitly extracted, the nature of the URLs suggests potential for further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
Heuristics 5
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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=pyroelectric+detector+pdf PDF link annotation
- http://espressoperfetto.nl/app/webroot/files/userfiles/files/46489853723.pdfIn PDF document text
- http://vinacafe-dalat.com/Images_upload/files/fogemejonuremolumotad.pdfIn PDF document text
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/d7a67c2203405d6d225c26a394b2f386/82347535533.pdfIn PDF document text
- https://www.lipca.com/ckfinder/userfiles/files/38476702183.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/16080e90493f14---pepovezekudan.pdfIn PDF document text
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/58qd5as5iop8e5hhj6de5r32jv/weret.pdfIn PDF document text
- http://bidwoodmachine.com/d/files/vutajufajukomofojiduwitow.pdfIn PDF document text
- http://targhevaticane.it/userfiles/files/33913600613.pdfIn PDF document text
- https://chaletsuenodesol.de/files/69779312253.pdfIn PDF document text
- https://cryptoshift.be/anaeter_capital/siteadmin/userfiles/files/ruvaruzepi.pdfIn PDF document text
- http://domplus.su/userfiles/files/26454566627.pdfIn PDF document text
- https://chmelo.hu/sites/default/files/file/lorotorimeguzo.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160c10db74b5f5---ketunosobe.pdfIn PDF document text
- http://1mosref.ru/ckfinder/userfiles/files/29182549467.pdfIn PDF document text
- http://ats-dz.com/userfiles/file/5577936987.pdfIn PDF document text
- https://khogiaydantuonghanquoc.com/images/news/file/giteti.pdfIn PDF document text
- http://mfcwestenkwartier.nl/beta/userfiles/file/33901494905.pdfIn PDF document text
- https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/e92l1kg53j8n8o4amf47koj6m7/37309473180.pdfIn PDF document text
- http://grupafurman.pl/!mag2011/userfiles/file/wuresafexakinugarup.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160840990309a8---dumixoxozivufu.pdfIn PDF document text
- http://villahetzwartepaard.nl/survey/userfiles/files/bafezopumobotiteri.pdfIn PDF document text
- http://aliglobshop.com/userfiles/file/81796274620.pdfIn PDF document text
- http://susanirvine.com/clients/82887/File/monidozusonel.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_off00012db5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DB5 | 21004 bytes |
SHA-256: 9a571eea1934e54b57feb43c770dd74237ecfb09d3f3b334796ea9bd92908844 |
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font_01_sfnt_off00016484.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16484 | 10296 bytes |
SHA-256: 86e1838a276f95484954fcd0c4e21646e81b698d9bbd7d121685a0593a51920e |
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font_02_sfnt_off00017bd0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17BD0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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