MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content or initiating further exploitation. The presence of multiple links pointing to compromised WordPress upload directories and disposable hosting suggests a link farm designed to redirect users to malicious sites or download additional payloads. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077126fb0b6d---33657406185.pdf
- https://imahima.xyz/js/ckfinder/userfiles/files/38189580630.pdf
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/waluzoror.pdf
- https://canionglobal.com/FCKeditor/file/saxopajozapurosow.pdf
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/4803e06ada6f9198ac2583bc01e68ef6/30908757473.pdf
- http://goldmustang.com/files/files/gemanozanin.pdf
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1608051a27907c---nujimilezupadixuwod.pdf
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/1c9c6fc76bbf7c23211a2b6c41c2f607/jelokuni.pdf
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075df6f4258f---rilepuvuvegigugij.pdf
- http://salinahighschool1967.com/clients/c/c9/c9c88be04994199279bceb128c91314f/File/41071357772.pdf
- http://itineraire-consulting.com/ckfinder/userfiles/files/39889179117.pdf
- http://emmanuelmissionarybaptist.com/clients/74938/File/jafawugoruwipuwimojixi.pdf
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160b3d8dd98f29---kekexitipowosukomo.pdf
- http://goldenpeak.it/userfiles/files/34815214315.pdf
- http://penzionnakrizankach.cz/ckfinder/userfiles/files/43049345256.pdf
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a321b8ec015---pejuro.pdf
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/ae5c1a17d339d0109c272be1e9d3a2a8/12462244681.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16090ff8c80d3e---70556084472.pdf
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/vck0cvbvogojt365ch840rubr6/pusipeg.pdf
- https://sanidom.pl/img/file/30458114032.pdf
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a4d1475b84---balutolosowexu.pdf
- http://inwallendorf.de/userfiles/file/tupevu.pdf
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609bf9cd3ee7f---17726369576.pdf
- https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/h35rba59lophfv7qr2slf0f47n/10242274368.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607d314ce4504---5771642447.pdf
- https://medprobr.com.br/wp-content/plugins/super-forms/uploads/php/files/c4a477f19262dc648b0f10dbd9a4239e/kabujinaz.pdf
- http://mppscstudy.com/admin/usercontent/file/xovuwolonom.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=paint+bucket+tool+not+showing+in+photoshop
- 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_off0000f097.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF097 | 16792 bytes |
font_01_sfnt_off000108a9.bin6d4bec8169244a50b94b9b0ae61f6b054219d7f74837e9f4962fcad2ab8c40ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108A9 | 18308 bytes |
font_02_sfnt_off00013902.bin5ae164e94c10acd910ccc7c768e6d8d31a18f96f8dfc0c81cbc413373f176560 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13902 | 10972 bytes |
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