MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicative of a link farm designed to obscure the ultimate destination. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The presence of multiple PDF-specific heuristics related to link farms and compromised uploads supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://ankurgroups.com/userfiles/file/simufexigonivejivalo.pdf
- http://cs-web-design.de/ablage/userfiles/files/mesaxudaxivo.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608265b3bca1b---lupesa.pdf
- https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/4142f406cf5a1cd3c5dcff334aa07747/38753570077.pdf
- http://tofuyatogo.com/uploads/files/soposezifa.pdf
- https://citrasas.com/ckfinder/userfiles/files/mokukepefobigi.pdf
- http://sushinamu.com/uploads/files/61142190082.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/88b30de1e46ea6f423927d3def5565e5/96325245654.pdf
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160792f87daff2---25689735828.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a9362c8c4d4---58795142009.pdf
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac1180f36ca---selazagu.pdf
- http://vytvarnyobchod.cz/UserFiles/File/5659413726.pdf
- https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/0kio75nbmb7u47jp6a0rj1vgk5/51715755661.pdf
- https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/43i5qepqepi7qh0fctucacjaap/buvafinubakukupiwu.pdf
- http://maduraigarlandshop.com/userfiles/file/72281674070.pdf
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/e92b2ea9f3749baf6cde5d22c11e4c77/82777455963.pdf
- http://imreelectric.sk/uploads/file/15519124127.pdf
- http://amuseonline.com/absite/userfiles/file/koririp.pdf
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/322e1d7f328fcbf3ab9b586c0e7e8f2d/tazovetitirubetokogug.pdf
- http://voxel-avocats.fr/uploads/file/85827831692.pdf
- http://analogsys.com/uploaded/file/9250437936094952915fb9.pdf
- http://phpirateboosters.com/clients/867602/File/17115946973.pdf
- http://arc-en-cielproduce.com/ckfinder/userfiles/files/fidabojimejawikil.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=area+code+330+is+what+state
- 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_off0000cf03.bin4c1ccc6a7aa444abe21e7c7f3c1605eb3390d3fdd379b03286c9e572a46ccbbd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF03 | 16372 bytes |
font_01_sfnt_off0000f8d0.binc31125cca6086afccf9c6c972629d610049fd96ccf3042c2ed33c7067282c9ff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8D0 | 10680 bytes |
font_02_sfnt_off00011194.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11194 | 16792 bytes |
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