MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains a link farm pointing to various disposable hosting domains, suggesting an attempt to distribute malicious content or phish for information. The presence of external URIs and a link farm on compromised CMS upload storage indicates a likely phishing or malware distribution attempt.
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://danielfelber.ch/userfiles/file/vemalivapi.pdf In PDF document text
- http://xn--12cfu9bc1efac9a9azfdsb7b9d1f0j.net/ckfinder/userfiles/files/13665039306.pdfIn PDF document text
- https://lensmam.com/userfiles/file/44571634633.pdfIn PDF document text
- http://demirlermetal.com/resimler/files/piliv.pdfIn PDF document text
- https://nikunjfoundation.org/ckfinder/userfiles/files/27164314608.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/ff820608f2c9bcf4193c5e07f50892fe/wibamuxirozogudob.pdfIn PDF document text
- http://crosswaysrecruitment.com/userfiles/file/6700732672.pdfIn PDF document text
- https://asiapharma.la/files/files/69588482461.pdfIn PDF document text
- http://slbreakingnews.com/ckfinder/userfiles/files/97861722181.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613675251dde5---tojumowuranegaxejotusav.pdfIn PDF document text
- https://jagominum.com/contents/files/58658363982.pdfIn PDF document text
- https://hetodon.com/fckeditorfiles/file/laxisudale.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/gapuw.pdfIn PDF document text
- http://digitalpolicycouncil.org/imagenes/file/46029215079.pdfIn PDF document text
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/odnqfd8lqssl1cj84nm6tsjkto/87273126803.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1614f2ddd4f8fe---69648689206.pdfIn PDF document text
- http://theseadiaries.com/ckfinder/userfiles/files/mixepesukobuxonuxode.pdfIn PDF document text
- https://tskrea.com/userfiles/file/51339875811.pdfIn PDF document text
- http://kolbiko.com/images/uploads/file/bubutazezizasadudemasovat.pdfIn PDF document text
- http://bielwod.com/userfiles/file/58028371655.pdfIn PDF document text
- http://avatars.ru/userfiles/file/36133906915.pdfIn PDF document text
- https://1tlstar.com/storage/uploads/files/kalemov.pdfIn PDF document text
- http://signauction.net/userfiles/file/75314049474.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=free+download+bussid+modPDF 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_off0000aebb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEBB | 16584 bytes |
SHA-256: 88dcdcc9979e6c2c2a4215380296108b06c4e6326177b83d72be62c298a59748 |
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font_01_sfnt_off0000d976.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD976 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f18d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF18D | 10616 bytes |
SHA-256: 0ba285c0a94035baf704fa3b8e03e483a3d8d7694e6764a721536dfdcc4b8139 |
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