MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites. These links likely serve as a link farm to redirect users to malicious or phishing content, a common tactic for initial access via spearphishing attachments.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a4fcf89f37b---busovogolapilofasinoduwi.pdf
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b35ac1f10c3---35256542419.pdf
- https://chung-pei.com/userfiles/file/36609687100.pdf
- http://www.klimavill.com//data/editorfile/47325272092.pdf
- http://akcjonariusz.com/UserFiles/file/50284874365.pdf
- https://camping-du-lac-dijon.com/fichiers/14461523238.pdf
- https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/5ec017d63e25b0cb17b1e2160fed1292/46288205535.pdf
- http://bjhtdszdh.com/v15/Upload/file/202181344144400.pdf
- http://kvbm.org/pds/userfiles/files/gedukekuzibofi.pdf
- https://camgloberealtor.com/userfiles/file/ledeketufe.pdf
- http://ytovietnam.net/ckfinder/userfiles/files/84692134530.pdf
- https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/16123af2d561b0---97416722383.pdf
- https://iaido-iaijutsu.ru/userfiles_exc/xiduwokewaj.pdf
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/0fc36acee8aae8e1c4da7971fac917c5/gusepatizuvodug.pdf
- https://lamaisonducoeur.ca/upload/editor/file/59120082778.pdf
- http://virtrade.gr/userfiles_lybo/file/wuxonimota.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc102d74d5---zadosapofepisenifiloziz.pdf
- http://tecs4.com/intranet/ckfinder/userfiles/files/vaxoliw.pdf
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/jevubitetobeluxazaku.pdf
- https://aluminiosarla.com/userfiles_arla/files/kubamu.pdf
- http://outspokenholland.com/userfiles/fckFile/20210623073119.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=icse+syllabus+2019+pdf+class+10
- https://mediacentre.heathrow.com/js/ckfinder/userfiles/files/wekulelalitagujuvano.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_off0000b51b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB51B | 16792 bytes |
font_01_sfnt_off0000cd2d.bin546044f3f78745618e947e754a65500c913a075a3432a239ba2fb38014f151b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD2D | 17084 bytes |
font_02_sfnt_off0000f94c.bindeb69cc721bc036f8016874d6b8fe01d73df71ed53889b9a9cdcaac80f781f62 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF94C | 10868 bytes |
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