MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to lure users to malicious destinations. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload delivery intent. The presence of multiple external URIs and link farm heuristics confirms the primary function of redirecting users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 6
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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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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://coretry.ru/uplcv?utm_term=cumulative+frequency+step+polygon+worksheet PDF link annotation
- http://www.abcklima.hu//data/editorfile/23644192176.pdfIn PDF document text
- https://aradmissions.com/ci/userfiles/files/42728121417.pdfIn PDF document text
- http://simonhoirup.dk/userfiles/file/41460226456.pdfIn PDF document text
- http://ylphs.com/ckfinder/userfiles/files/mepif.pdfIn PDF document text
- https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/fffd4a6ab8cca6711f0c5ea7523c33c4/39268511558.pdfIn PDF document text
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076f9bb0d616---29013292925.pdfIn PDF document text
- https://kme.pl/global/app/webroot/uploads/file/16235894208476.pdfIn PDF document text
- https://micast.de/wp-content/plugins/super-forms/uploads/php/files/34maklmv789lddont9kgc0jhgk/soroz.pdfIn PDF document text
- http://aroma-es.site/yamituki-n/uploads/files/tekixenila.pdfIn PDF document text
- http://monticellotownship.org/userfiles/file/19677028762.pdfIn PDF document text
- http://bakefruit.com/uploads//files/202108021844525920.pdfIn PDF document text
- http://schooldistrictservices.com/clients/f/f6/f6ab1571d2cdf5e569af7b76e288b17c/File/fefekorifokifesukifut.pdfIn PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/e9532724ff601e3239944cd6a3c36e9b/bukemike.pdfIn PDF document text
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d854452af---83446154069.pdfIn PDF document text
- https://acryl-bg.com/userfiles/file/sidujejiwudum.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/13493046994.pdfIn PDF document text
- https://ceccargiurgiu.ro/userfiles/file/losikabagawopefeziboma.pdfIn PDF document text
- https://bostoncake888.com/UserFiles/files/rogamaluzofokuloxu.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160704c9031e2c---guguponavivu.pdfIn PDF document text
- http://tangiahoang.com/skinkorea/Images_upload/files/84196962422.pdfIn PDF document text
- http://kotolantopeni.cz/file/18062242562.pdfIn PDF document text
- http://htwy.com/upload/file/26531449101.pdfIn PDF document text
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/81e53b2eca2e3184e521ff0dee3424d8/futemobifumidenanom.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607c642b5d217---3821378694.pdfIn PDF document text
- http://twothirdsmajority.us/clients/38522/File/53297925719.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_off00012c7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C7B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00014492.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14492 | 11564 bytes |
SHA-256: 290d86b62e2da18fbce0a0c473cd00bef6755e2ec34f8e66d94e133b2379a34e |
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font_02_sfnt_off00015f9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15F9F | 19852 bytes |
SHA-256: dc98c12cb7551bc3d1c8a84142ddd55b03ce5028aea964e1d153cd724534da2f |
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