MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF document that contains embedded JavaScript and a large number of external URIs, many of which point to compromised WordPress sites. These URIs likely serve as a link farm to direct users to phishing or malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 https://ketchas.ru/uplcv?utm_term=how+to+build+up+a+conversation
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/af86edbac71003b743e87c3eed098fc3/21387595111.pdf
- http://arci-mp.fr/admin/File/37296765536.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084599e8211c---lojudanoj.pdf
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0ec072089---xijosenurukunirixino.pdf
- http://tecsun-moscow.ru/docs/file/91360321109.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606d40bdab7f3---76868140788.pdf
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b0e50356e6---nugupaxutovegupoberagikeb.pdf
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/3n97du3socafeg5dh5nuek53va/jorozumumigumiwakuzenuv.pdf
- http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071667db0daa---20391794074.pdf
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16098475fb6d5e---49944674014.pdf
- http://upoart.com/ckfinder/userfiles/files/kigotutaxagasopego.pdf
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/rsg9nmr7rqpe7i7qt7q6l4nbe2/sijemizuni.pdf
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/ed442066dc3a82c5b84505adefc459c1/33127283703.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16098c57d77c51---rixopifedosurubunule.pdf
- http://www.microsinusectomi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f340813dc2---64372701871.pdf
- https://behbehaniprojects.com/uploads/files/tozagoba.pdf
- http://score1forspencer.com/clients/4/45/4587145e2679cb7673d0e21b436e5c25/File/jitepej.pdf
- http://garagehayashi.com/js/upload/files/degovanigijinowosi.pdf
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fc6f3d96d2---milepedugile.pdf
- http://dienmaythanglong.org/uploads/files/79499374441.pdf
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdf9d637982---sozuvofevenaxib.pdf
- http://digimaap.com/wp-content/plugins/super-forms/uploads/php/files/ln47q1mgl89cunc29mm0jirr5h/pisatinojipokun.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608c7df97cd32---sikulidarobitasovine.pdf
- http://sewakendragroup.com/userfiles/file/niripewokalerudubufu.pdf
- https://arrayamed.com/userfiles/file/dokagefobomur.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_off0000f979.bin8664984ad74cac80ebba38d6a74c0bf3647ff702e38e5bf6dc62000de87d17c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF979 | 10888 bytes |
font_01_sfnt_off00011297.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11297 | 16792 bytes |
font_02_sfnt_off00012aa9.bine2cd3079a177ee5c8ee3edfd583e1dd97eab17b0716a5f881c57f57c46a81170 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AA9 | 16840 bytes |
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