MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan distribution attempt. It contains numerous links to external URLs, many hosted on compromised WordPress sites, suggesting it functions as a lure to download further malicious content. The presence of external URIs and links to compromised CMS uploads points to a strategy of distributing malware through seemingly legitimate but compromised web infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://krisoc.ru/uplcv?utm_term=descargar+guia+me+divierto+y+aprendo+1+grado PDF link annotation
- http://fecoil.com/userfiles/file/88352638977.pdfIn PDF document text
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da27a7e8dfc---telarixiva.pdfIn PDF document text
- https://www.qualityitalia.it/ckfinder/userfiles/files/27387268504.pdfIn PDF document text
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa4ceb5f8e---81961405529.pdfIn PDF document text
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/7eca349bafc39b94a113b83547267254/ganurowifozixoreturenu.pdfIn PDF document text
- https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/1jk6s2pgg35r858kctn06v6iul/kasataxajufaloxo.pdfIn PDF document text
- http://kingalbertltd.com/uploadedfiles/file/67412241694.pdfIn PDF document text
- http://tuvanluatdanang.com/upload/ck/files/nebetadukaregev.pdfIn PDF document text
- https://fid-data.fr/app/webroot/uploaderfiles/26111966862.pdfIn PDF document text
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160db36ef5aa12---32930262218.pdfPDF link annotation
- https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/d4f53cefc8a81be2eef98b7a3eccd1fa/wudexevogeseruv.pdfIn PDF document text
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16102b48e3a190---9040811149.pdfIn PDF document text
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/eho07knefk8us9vqmf34ambqg6/45746774089.pdfIn PDF document text
- http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/b2qfgfk0s9vstllod84c5bjjd2/909095984.pdfIn PDF document text
- http://campingwithconvenience.com/files/files/vipukufe.pdfIn PDF document text
- http://kkitv.com/images/upload/File/7089263692.pdfIn PDF document text
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073c2c16219b---11722720925.pdfIn PDF document text
- http://taiwanglassgroup.cn/userfiles/file/11575594723.pdfIn PDF document text
- https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/69ce2b4de4f436341eb944ea0bf8ba02/175728027.pdfIn PDF document text
- http://prociweb.hu/sites/files/file/rasam.pdfIn PDF document text
- https://strechybenesov.cz/content/davizotipixitizuser.pdfIn PDF document text
- https://tungqibiotech.com/upfiles/editor/files/90863573215.pdfIn PDF document text
- https://fototipia.hu/files/files/53549331557.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_off0000eba3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBA3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000103b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103B5 | 19444 bytes |
SHA-256: 140565278cc2c05145d83186af9aa823e842988b4c412c2d3381a817cf034d9f |
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font_02_sfnt_off000134ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134EC | 11144 bytes |
SHA-256: 739fd490920c9e29554a9da70d45a60021d61802325b43ff4535613cef92c2db |
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