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 compromised websites, many of which are hosted on disposable domains. This behavior is characteristic of a link farm designed to distribute phishing content or malware. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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 http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160cd0b7839dae---dodefep.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074b98b82653---kewosiranifepined.pdf
- http://shs1977reunion.com/clients/41590/File/85947153230.pdf
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f5bf263a3a---43808860789.pdf
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/7d7cbb88880b71b9c82997cd1d028f77/33382399403.pdf
- http://ubest.ru/images/file/92861280887.pdf
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa9b7d5ff67---6432710259.pdf
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/00bbc98b95a084132db7ffa83f9000a4/70860402908.pdf
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/bea988459a5f32dfceea527577b59062/61502317797.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/j2qn0il9pqvqt46jumh5dgfah3/19722385386.pdf
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b22e3bc960f---2690359259.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c83ada68b8---penebabafasolom.pdf
- https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/4655601d81209814110c6ae88418b894/21796876766.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/6741d9126430fec9f4f1f5dd43cef985/50747259230.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087941758eb3---96417764594.pdf
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079c83b82530---rewarebuburofus.pdf
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6c7128bc2c---89237336306.pdf
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099abbae5fbc---92430966323.pdf
- http://vytvarnyobchod.cz/UserFiles/File/89242147430.pdf
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/00278fcfac5b15f023d10c2c2bc6a845/jojasesapinelil.pdf
- https://trellisdundee.com/wp-content/plugins/super-forms/uploads/php/files/66be53651b888824cb877e1d82b5c735/rurifosidazizopim.pdf
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160763d887d070---65987470806.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=gfr+rate+per+day
- 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_off0000f43d.bina5d164b2b782b347097144f9413a48695c9a08c160cad4debf6f66e3b63d3177 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF43D | 10112 bytes |
font_01_sfnt_off00010af8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AF8 | 16792 bytes |
font_02_sfnt_off0001230a.bind81b8ba5ef762406713eb110464184a285fc4dc28c4a2456440ca50aeefee8d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1230A | 17564 bytes |
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