MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is a common technique for executing malicious code within PDF documents. It also features numerous external links, many pointing to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to lure users into downloading further payloads or providing sensitive information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://lbhs1965.com/clients/6/6b/6bdd8f708684a1f547efbf97e1630fe5/File/kopuvoj.pdf
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/0206dddb8550436aed98085e488940fd/89666951714.pdf
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16075e354bea8d---70890512426.pdf
- https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ef1d0ddef9---ximunanarinotipubezu.pdf
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b58cca3580---43960919784.pdf
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c40488b950a---ruked.pdf
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160cb8105d17a8---27188834731.pdf
- https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/74mgd0uod8dm3umr0enhv0c261/biwoba.pdf
- http://wijnhuis-vaessen.nl/site/data/ws/files/tekalaponu.pdf
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/6fe306bed4d84ba51442c32bad359d68/fajisudulogagulodexibuk.pdf
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160864ce473ef7---govulafepegejevotumavovu.pdf
- http://csss77.com/clients/d/df/df7f2fdc42e243c7a03c192a8228c0be/File/38007431465.pdf
- https://clumba-indoor.ru/files/files/famurelono.pdf
- http://dok-vo.ru/userfiles/file/jegomatirixosuxunodov.pdf
- http://classiccar-jp.com/js/upload/files/20586956765.pdf
- http://fkhd.cz/data/img/mozigixutepibegipan.pdf
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b59edd556c5---16524645848.pdf
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/436b51c3ca668e1218a9ea4af081a670/patesebinun.pdf
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607276975321b---711176813.pdf
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/q4csvun3g212u57ob3rshvrf2l/9728750079.pdf
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/05cfed1f4d749463bbb24a4f1252598c/6723844167.pdf
- https://dalnoboy.com/data/filestorage/upload/files/40133773202.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/fd76vrgctnjv4jn8t27euju41i/wibozavomisav.pdf
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/180c586eaf67148a655a4cc2b99c4248/nobubolamaxopabizo.pdf
- http://ayurveda-shiatsu-nice.com/upload/files/82602082845.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=theory+of+constraints+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_off0000ef66.bin5e1f379a873db9a8cb23aeba720b6a0224716896aa0ff38463e670de9d2448f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF66 | 17148 bytes |
font_01_sfnt_off00011c19.bin4fba46f0f14d8ded81da2ca95607dfb4655d9274d6d8ed752cc74b351db2d40e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C19 | 10748 bytes |
font_02_sfnt_off000134d8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134D8 | 16792 bytes |
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