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, indicating a link farm or SEO poisoning attempt. ClamAV detected it as a phishing trojan, and ML classifiers also flagged it as malicious. The primary function appears to be redirecting users to potentially malicious or spammy content via these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
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://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/968ef647003ea161b20a40fce960c2a3/wizoraximefilutodib.pdf
- http://3q1p.com/upload/file/2108081523523593766o0wvbc2cfy2.pdf
- https://raovat72.vn/uploads/news_file/83982628494.pdf
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/1d9607634bdd61a112ac5fecd96ef169/lobebolaxemorebelazu.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16114f3bb89352---96428410920.pdf
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbb26212c3d---43482136175.pdf
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1608a2fdedbcb4---63869478607.pdf
- http://chiaranannini.com/userfiles/files/fiverenowobakotisozusefi.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bbad199b7f---vipajozalomobimol.pdf
- http://muntepa.com/userfiles/files/lelaxemixepaseruj.pdf
- http://uspeh-kursk.ru/ckfinder/userfiles/files/sedonibizisi.pdf
- https://sarna-zapiekanki.pl/ckfinder/userfiles/files/44624184502.pdf
- https://dichvumayphoto.vn/webroot/img/files/25353576512.pdf
- http://cukorbetegshop.hu/files/43612666401.pdf
- http://mchs67.com/clients/6/60/601da637195afcc8544498be66ee72b0/File/8688972672.pdf
- https://nhadatonline24h.com/Images_upload/files/81890061425.pdf
- https://minipowerpack.net/upload/files/24774450917.pdf
- http://giasudaihocsupham.com/Images_upload/files/42517018113.pdf
- http://mytmbc.org/fckimage/file/gumutozam.pdf
- http://ampletrekking.com/userfiles/file/2206929333.pdf
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/9337cb89dda4ac336d9156d65492f9a7/xodosemulenumilijosug.pdf
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611cc3aae4a3a---gutabozojasakeregor.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=2019+ford+ranger+raptor+price+philippines
- 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_off0000e760.bin5e02dfc6dd2d8f4ca5f45c008443e3df95882f7b53848b95b13bd1186da8058b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE760 | 16328 bytes |
font_01_sfnt_off000111e8.bin9ec0fe74cd0ef83be4c29e64ab03ec49a9badb776013a924eecfe4da49bb0af6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111E8 | 11264 bytes |
font_02_sfnt_off00012c1b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C1B | 16792 bytes |
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