MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs that point to compromised websites and disposable hosting, indicative of a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery. The presence of multiple external URIs and a compromised CMS upload link further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://coretry.ru/uplcv?utm_term=battery+charging+slowly+android PDF link annotation
- http://hcvitamin.com/webroot/img/files/55071767901.pdfIn PDF document text
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/blplflntkl0a6uf1b71h78i7v0/rogusizugufifexonu.pdfIn PDF document text
- http://bephoangdung.vn/uploads/ckfinder/files/gozilasaxomafakiseb.pdfIn PDF document text
- http://dobraukraina.org/sites/all/sites/dobraukraina.org/files/lalekilivokoxedugisiwagi.pdfIn PDF document text
- https://ecoolteh.eu/galeria/file/jemudofasamepap.pdfIn PDF document text
- https://buildingexpertsdirectory.com/ckfinder/userfiles/files/6283256175.pdfIn PDF document text
- http://burattinojatek.hu/userfiles/file/71811108698.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/16133ca60b38bf---57722759688.pdfIn PDF document text
- http://szintai.hu/ckfinder/userfiles/files/vizijudopalugegavizod.pdfIn PDF document text
- http://nessie-vinylcare.com/file/8868988690.pdfIn PDF document text
- http://teacherandtraining.com/coj_u/KK/userfiles/files/22978528489.pdfIn PDF document text
- https://kawanmto.com/contents/files/fepopojabedibixiwufej.pdfIn PDF document text
- http://nationalherbo.com/userfiles/file/sitajasewogiroduwowi.pdfIn PDF document text
- https://anup.bo/images/files/lagemenipixabarizal.pdfIn PDF document text
- http://textingrights.com/userfiles/files/54451244806.pdfIn PDF document text
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/0ll36rf37fj15cjnnqn86orjs1/gewexed.pdfIn PDF document text
- http://maybomnuocdanang.com/uploads/image/files/46866128150.pdfIn PDF document text
- https://cicasoftavukatwebsitesi.demowebsiteleri.com/upload/files/67431059766.pdfIn PDF document text
- http://beiwendq.com/data/attachment/file/99412960729.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/sgonvc50283ivabj6rfsal4d37/jemimamusogiviwigat.pdfIn PDF document text
- https://ferado.vn/userfiles/file/46213996095.pdfIn PDF document text
- https://walnutcreekguide.com/wysiwygfiles/file/molur.pdfIn PDF document text
- http://www.perchegouet.com/ckfinder/userfiles/files/dogetok.pdfIn PDF document text
- http://atsrealtyvietnam.com/upload/files/18027579602.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_off0000ef88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF88 | 18300 bytes |
SHA-256: e529100419954aa5b961a29473d6c9f497a00d48e23c69e04c38dcb49886962e |
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font_01_sfnt_off00011ecf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11ECF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000136e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136E6 | 10904 bytes |
SHA-256: 7e864825315d08a67f6c4add00e45aecd50fd865b9f976d2cf55bf4d59b83ead |
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