MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. Although no scripts were explicitly extracted, the nature of the link farm and the detection as a trojan indicate an intent to deliver a malicious payload or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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=what+is+the+meaning+of
- https://elearning-chemistry.ro/userfiles/file/76878762038.pdf
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608539a6f161a---gimutami.pdf
- https://castilloexterior.net/ckfinder/userfiles/files/62368353567.pdf
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160944b10ebfa5---bivefomalawador.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a721ed5dfd0---kejimepemalepi.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d69d1dfa1b---zidologu.pdf
- http://dishandspoonproductions.com/ckfinder/userfiles/files/54214911982.pdf
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/kqo7oa8t151fk4k6j2a79sh0u2/xesufiwesixi.pdf
- http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac223c5089---72699231545.pdf
- http://georgekoldun.com/var/upload/file/99341709907.pdf
- https://raljob.com/userfiles/file/58874808785.pdf
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160772186d4ad2---beziwovawinivavakekuzegu.pdf
- http://daehwa.info/uploaded/file/98018765073.pdf
- http://upperdublin1970.com/clients/3/3b/3b2fb281f4756d03d37a29c41a8c1d95/File/xuvexugib.pdf
- http://ckrestaurantgroup.com/ckfinder/userfiles/files/23603555085.pdf
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/16097c1915e6c3---48013401972.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0fc363da5---83313334501.pdf
- http://eca.or.th/ckfinder/userfiles/files/18346808896.pdf
- http://lorichphoto.com/pictures/file/67919133642.pdf
- http://russkiivopros.com/images/FCKeditor/file/91759186409.pdf
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8a690d47f---vakafatibelugapaga.pdf
- http://podlahypilat.cz/admin/file/wuputetukozezagasifuti.pdf
- https://ystechpro.com/nbloom/fckuploads/file/depedenujeba.pdf
- http://hainescentreasia.com/images/file/zizefi.pdf
- http://outspokenholland.com/userfiles/fckFile/20210530170316.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f2f5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2F5 | 16792 bytes |
font_01_sfnt_off00010b0c.bin6967b92cea30f71887c0557a9b07392eea07aa265c5a68bd5c5e9fdfbda2b614 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B0C | 10508 bytes |
font_02_sfnt_off000122d0.bin474930f8c479b20310d8c63ff2ccd626d83b4a8e1cb48f0e94163da4d6271ede |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122D0 | 16276 bytes |
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