MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of multiple external URIs and a link farm heuristic points towards an attempt to redirect the user to malicious content.
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://chizclean.ru/files/fck/file/murivetejo.pdf
- https://adepotcustom.com/UploadFiles/file/20210521180912133.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160720ca519ada---wozagiperagidonazegazeduk.pdf
- http://ed-web.cz/userfilesfile/vezaj.pdf
- https://grandhotelbulgaria.com/userfiles/file/sojemozunab.pdf
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/9a99222e97fb7146548f201d28777b2a/rakoronitanu.pdf
- https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/af74ccf951f31c583fb8ae744e7b9ba6/pukapidufikom.pdf
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160ae9aceaab77---20405248189.pdf
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160acc83c4d34b---lozupegamomovativejalezix.pdf
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608132ea0b9c1---10718710908.pdf
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/ie021o9u6c61cdbfq3c1cpjrj5/50065520556.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a903f66fa15---bomok.pdf
- http://stellamaris.cz/userfiles/62480200177.pdf
- http://jrpst.pl/userfiles/file/84568738015.pdf
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160b3eddc20712---48774012969.pdf
- https://leavingcare3plus.ch/userfiles/files/totufopigedu.pdf
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a5ceb770f46---verifeko.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e1cf27312f---vefewotuwubaraneni.pdf
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d75f4aa2edb---temaxajigavitonig.pdf
- http://rokakisreunion.com/clients/a/a8/a85ca1e4cfc2bb88d767af442173b437/File/7560202759.pdf
- http://ipceurope.eu/assets/file/zoxage.pdf
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8f88f87c75---21039944220.pdf
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608d5c1d050df---81744845777.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=watch+real+housewives+of+new+jersey+season+10+episode+1
- 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_off0000c013.bin5d663b8306f2bc55bd4b4304d2f9ed5f52353859ef64210b833fa4345e6b767b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC013 | 16700 bytes |
font_01_sfnt_off0000eae2.bin092a55927da60d24bd0650935467087cd8f6f62a20f13506b68db1272bdbb385 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAE2 | 11380 bytes |
font_02_sfnt_off000105bb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105BB | 16792 bytes |
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