MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to external websites, many of which are hosted on compromised WordPress installations or disposable domains, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. The presence of multiple external URIs and a compromised CMS upload link further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://cructi.ru/uplcv?utm_term=gmx+account+auf+android+einrichten PDF link annotation
- https://ijieet.org/ckfinder/userfiles/files/fibuleborofimuzudezoto.pdfIn PDF document text
- https://alsharqcc.com/userfiles/files/tafigobozonatuxo.pdfIn PDF document text
- https://duocvinhkim.com/userfiles/file/54933815569.pdfIn PDF document text
- http://networkinglikepro.com/ckfinder/userfiles/files/wowesamozebodogifunipawud.pdfIn PDF document text
- https://sushixusa.com/userfiles/files/83544526422.pdfIn PDF document text
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/mtmqrdpt71ho4oa6sfkup9jdu0/notonojubozoxat.pdfIn PDF document text
- http://jarosi.hu/files/file/ribup.pdfIn PDF document text
- http://peak-experience-japan.com/images/blog/file/80973523610.pdfIn PDF document text
- http://toroisg.com/public/images/files/dadisamolaremo.pdfIn PDF document text
- http://mdsalon.ru/img/lib/file/tagijemubejara.pdfIn PDF document text
- http://asustainable.com/global/file/36042985357.pdfIn PDF document text
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143d7c09087b---munuwevapekuji.pdfIn PDF document text
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/161369ad196fd4---27401214724.pdfIn PDF document text
- http://dgjinhak.kr/DATA/upload/files/202109170626149013.pdfIn PDF document text
- http://2m-m.eu/userfiles/files/30196948764.pdfIn PDF document text
- https://omegaplus.bg/uploads/pages/files/40238216866.pdfIn PDF document text
- http://duancanhotot.com/upload/files/41979619556.pdfIn PDF document text
- https://www.espaciocultivarte.com/ckfinder/userfiles/files/zafetile.pdfIn PDF document text
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613131f000ca5---16138087546.pdfIn PDF document text
- https://zd-zeta.com/uploads/files/202109151733379064.pdfIn PDF document text
- http://gajagotour.com/UserFiles/file/kivikak.pdfIn PDF document text
- http://alarcon-v.com/editor_upload_image/file/678215752.pdfIn PDF document text
- http://spc1991.com/ckfinder/userfiles/files/59044374209.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_off0000dd50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD50 | 10768 bytes |
SHA-256: 9eb26abce2d0b30d78c7cea068c45db6cfe2b143b7003e4717a0354ab05d2778 |
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font_01_sfnt_off0000f5f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5F3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010e05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E05 | 19588 bytes |
SHA-256: 5e878829ce2ed2863dcc4207ff66a27f413eaa73e0a59b6e83097198aee99312 |
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