MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. It also features a large number of external links, many hosted on compromised WordPress sites, suggesting a phishing or credential harvesting campaign. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9909
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://wastran.ru/uplcv?utm_term=revised+salary+offer+letter+format
- http://lycee-elm.org/userfiles/file/gobivuluzaxew.pdf
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4f032ec39---magovuvol.pdf
- https://fotoprint.lv/downloads/file/95454358672.pdf
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/388f5klhs96ur4bsmcikq9cppf/67905121920.pdf
- http://czdashan.cn/uploadfile/file/2021050404381073499.pdf
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/4ff1c9bfc03d4ed7a7401f993399323e/23219739531.pdf
- https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/e0e43571df6617945d638a6b66e80afa/perevujopakidunuxakobipis.pdf
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160beeddce815c---19954081500.pdf
- http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/38392840594.pdf
- http://digjamaica.com/app/webroot/files/musasataxemajilawoduw.pdf
- http://mamnonkitty.com/webroot/img/posts/files/lobizezalugife.pdf
- http://www.alex-vasilkov.ru/images/wisdom/file/52859870892.pdf
- https://xn----8sbcehyodmtf1czh.xn--p1ai/userfiles/file/wufoxifasuw.pdf
- https://accesoriosalmayor.com/images/userfiles/file/modexebos.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3f5b38f6c---tuwimedigawomejibavumimil.pdf
- http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a976c615ec3---99045778442.pdf
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7fa1af101---muroguri.pdf
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc535ea598---rixubonujemujowokul.pdf
- https://parquesanalbertohurtado.cl/ckfinder/userfiles/files/luzenabapiduromatube.pdf
- http://diamond6ranch.com/userfiles/file/34082136436.pdf
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16096deb70fbf3---gaxenu.pdf
- https://pomacanthe-art.fr/imagebeforeafter/files/kagazo.pdf
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a83e2f6d2eb---pezefifovinovirusokara.pdf
- http://meta-min.com/files/67184658407.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000111f6.bin7d15b2d6d265aaca51dda18faee70a1b8fa9d95ed54cb111fb0895789092f9ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111F6 | 16312 bytes |
font_01_sfnt_off00012801.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12801 | 16792 bytes |
font_02_sfnt_off00014018.bin5342f0aa0f534f57eb08e60d36a045d9720344a624d60c7e649760e074fa04af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14018 | 10636 bytes |
font_03_sfnt_off00015880.bina88fa4f064f4e501bff9514884b22c3b550fedacf3767d161ceffec7fc836195 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15880 | 17016 bytes |
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