MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains a link farm with numerous URLs, several of which point to compromised CMS upload directories, suggesting an attempt to lure users to malicious sites. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings indicates a deliberate effort to obscure the final destination and leverage potentially compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://krygina40.ru/UserFiles/File/28264911599.pdf In PDF document text
- http://ekotop.eu/userfiles/file/93521882128.pdfIn PDF document text
- http://massvt.sk/editor_uploads/system/files/zifapebiwatubodeg.pdfIn PDF document text
- https://dianthusindustrial.com/resimler/files/pupobagifomasusoror.pdfIn PDF document text
- http://frutapac.com/ckfinder/userfiles/files/7417648761.pdfIn PDF document text
- https://nazragame.com/calisma2/files/uploads/refezizotutedibuw.pdfIn PDF document text
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/kkf7ic31bh7m65odskc9dbkir7/savabobedowe.pdfIn PDF document text
- http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/a4832e8f8c252cb1ceaeb5b54d718ed2/wewipasobixifekudaxowa.pdfIn PDF document text
- https://store-connector.com/_upload_bilder/_filemanager/file/lonokilosarip.pdfIn PDF document text
- http://ledseoul.com/userData/board/file/48303123436.pdfIn PDF document text
- http://juentai.com/userfiles/files/pifubufane.pdfIn PDF document text
- http://nhuaduongnhapkhauaz.com/upload/files/64633107616.pdfIn PDF document text
- https://ecoretras.com/file/muxibamuraku.pdfIn PDF document text
- https://preciseenergygroup.com/media/wipilawot.pdfIn PDF document text
- http://hodinovysoused.cz/upload/file/gorowaxatig.pdfIn PDF document text
- http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/76998328593.pdfIn PDF document text
- http://www.klimavill.com//data/editorfile/refafokizup.pdfIn PDF document text
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9290e824a2---37335364897.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec595c3ea3---61775950346.pdfIn PDF document text
- http://burfel.ru/upfiles/files/67895058238.pdfIn PDF document text
- http://interiorsexpress.biz/dayafter/uploadimages/newsimages/file/bowinijapime.pdfIn PDF document text
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/248463838377f5c8a8ca5dd1ea3c411d/45685708042.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a683de1f8f6---21066773132.pdfIn PDF document text
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16102b99af1c3e---41248082600.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=genie+gict390+how+to+replace+batteryPDF 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_off0000f26f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF26F | 11324 bytes |
SHA-256: 7487d06beb5b411e6fd02d48c175ae320f5e72a9d6d3f243b3760907dfce8f66 |
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font_01_sfnt_off00010ce2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CE2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000124f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124F4 | 16032 bytes |
SHA-256: f25c97ab671252046e76b8144ae15eb2e0763635d009a98f4e74ca0c5c6bfed0 |
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