MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs pointing to compromised WordPress sites and other disposable hosting. These links likely serve as redirects for phishing or to download further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9893
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://inwebjor.ru/uplcv?utm_term=solution+of+0.1+n+nh4oh
- https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/9e64618fecfad9ca3896cb03bab85bc9/69958860949.pdf
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/dbd89d056ea88280d0634db709308968/87252339224.pdf
- https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/eavll4dt8c6fc540o86bb98cv7/wuxexasowedakezudada.pdf
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e5e78888b---41825253424.pdf
- https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f9dbf2de28---8379279149.pdf
- http://aarogyamedico.com/userfiles/file/dusaziratoja.pdf
- http://abcbyspu.com/ckfinder/images_store/files/77070480208.pdf
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/3c7c209fa59d206cd28d47360fc13d93/nemez.pdf
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/uumvfchro9mru5mk6o6ujuas67/13813205408.pdf
- http://kotolantopeni.cz/file/dusubalapowidifulekufigul.pdf
- https://zemiigori.com/uploads/file/69238780198.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/1607cba16f3cc2---mewowubatiri.pdf
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7500cd75c---17236674023.pdf
- https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/afcccf973675d88911e13010a0a67f8a/8433960307.pdf
- https://viettincapital.vn/upload/files/66095689805.pdf
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/095d7cd1c7ef5f6675afb8c064b8bf0e/suvixedeno.pdf
- https://wemservice.com/ckfinder/userfiles/files/7496314932.pdf
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160805da64d028---70465014547.pdf
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/15e909903a423bcd3c453321a579d623/91046559483.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609df28f67e11---josezujafo.pdf
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0eebf461bb---26910140519.pdf
- http://amandatravel.com/userfiles/file/girenizefaxozizimarezediz.pdf
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16089b53225306---talenuforowinu.pdf
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/m5jmln3nb542sf7ei2hft2up7m/6050286095.pdf
- https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/df3a83fd19f599e9a091f8e65aafcca0/44048904903.pdf
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16093e915c9d00---72898273373.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_off0000bc5c.bin3eb573df8488e91363bfcd2c18ff5c6bae1ae12ef08215e8ffbbe801e44297fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC5C | 10240 bytes |
font_01_sfnt_off0000d34b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD34B | 16792 bytes |
font_02_sfnt_off0000eb5d.bin15b604ee104f51d7ae09c274a0772f40b4116a38d226b09b6937a8b8c5cfe0d9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB5D | 16608 bytes |
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