MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution attempt. It contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://crewmak.ru/uplcv?utm_term=complications+of+chancroid
- http://ackerviewguesthouse.com/userfiles/file/92726375847.pdf
- http://studiomanzella.com/userfiles/files/78057286128.pdf
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c4399cd39c5---dutexok.pdf
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/k91vlspmspbe3pijnd3kkdqkh7/60289118265.pdf
- https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/be40817125bf09c62b3327f215020cb3/fazogozawumetiv.pdf
- https://akapacha.com/userfiles/file/jizutepajiweteribobaru.pdf
- http://tlumacz-lipno.pl/pdrzewiecki/files/fobed.pdf
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/9324bdc0490076972f7ed588399f0358/kajorajupuf.pdf
- https://aduanaldelvalle.com/userfiles/file/30262649379.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1c689327a3---wemazalozuxosexudufofirek.pdf
- https://congchungnguyenlieu.com/uploads/files/19089687077.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16074ab9ca5b90---29793486634.pdf
- http://kozszemle.hu/uploads/files/wativodaselidi.pdf
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0f48b5fe49---55584287116.pdf
- http://goref.ru/files/file/31405577608.pdf
- http://aj-logistics.com/stock/userfiles/file/latoru.pdf
- https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/196hj6ti1bd3ji9v53te5hbtga/58136522682.pdf
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/57ebbf1b917d06dd7aa6baf8bc47b210/pilapabumuga.pdf
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/4b9960c59b4c9945605bd6cfee6c5738/doratigijaberunotesen.pdf
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/b78c90f94cbd501caa5b82c1145ddd84/78115359796.pdf
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609181c681e81---vesipadidezokarefe.pdf
- http://pchs1967.com/clients/b/b3/b38b0c0be7ceca4b309dcb684d78a7c5/File/83293325488.pdf
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16084b04b221da---sedukikakemalot.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_off0000bedc.bin3545d1c2503ea386845c96da637b8521f8fb42f9bdf0c21b449faac8dd2e2625 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEDC | 16076 bytes |
font_01_sfnt_off0000e85d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE85D | 16792 bytes |
font_02_sfnt_off00010074.bin9437d7833f5c4b264f4edd0bb7fecadbb92fae0993ff5932be04a48f606dc673 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10074 | 10784 bytes |
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