MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains multiple links pointing to compromised WordPress sites, suggesting a link farm designed to host or redirect to malicious content. While no scripts were directly extracted, the presence of these compromised links and the overall detection profile strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16137853cc816b---68553142407.pdf In PDF document text
- http://mrtowing.ca/Lawyers/userfiles/file/66706790854.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/vepadunow.pdfIn PDF document text
- http://chia4kids.ru/ckfinder/userfiles/files/72184982565.pdfIn PDF document text
- https://bibliotheque.ville.deux-montagnes.qc.ca/ckfinder/userfiles/files/kunaxesitakufobe.pdfIn PDF document text
- http://www.nena-artspace.com/ckfinder/userfiles/files/97969090780.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16130bf656eedc---15611661212.pdfIn PDF document text
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/cbb76d44ca821fb2d88604800bdce55e/5927894097.pdfIn PDF document text
- http://www.hausbaumesse.at/ckfinder/userfiles/files/vokimevazejasipivu.pdfIn PDF document text
- https://ekransamara.ru/files/79211499088.pdfIn PDF document text
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/161382a1167c30---5275964690.pdfIn PDF document text
- http://nicolalazzarotto.com/userfiles/files/kozufesiz.pdfIn PDF document text
- http://www.pattyn360.com/upload/forum/files/76677914336.pdfIn PDF document text
- http://charugarware.com/DEVELOPMENT/charu_garware/uploaded/userfiles/file/97585313115.pdfIn PDF document text
- https://niboparis.com/upload/fckeditor/files/81451080499.pdfIn PDF document text
- http://www.museopizarra.com/ckfinder/userfiles/files/80493059468.pdfIn PDF document text
- http://sonarkella.com/userfiles/file/73706473225.pdfIn PDF document text
- http://tubietelbar.hu/uploadfile/64299004044.pdfIn PDF document text
- http://ibconsulting.it/userfiles/files/49019521221.pdfIn PDF document text
- http://stihoplet.by/upload/editor/files/sukijupuwizawixa.pdfIn PDF document text
- http://take114.kr/FileData/ckfinder/files/20210909_0706A48CC1BDB5C9.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=xamarin+android+app+bundlePDF link annotation
- 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_off0000e6e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6E1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fef8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEF8 | 10532 bytes |
SHA-256: 140cc4cea1a5ce3feade95e2dfb4b73ebed12946820ceff04db28efb28f6b6d2 |
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font_02_sfnt_off00011689.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11689 | 18056 bytes |
SHA-256: 684e7cd9946ea5885d96bacd82dab1307c7f4370b3dea4ce1824916840abdb93 |
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