MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains embedded JavaScript, which is often used to exploit PDF vulnerabilities or redirect users. The PDF also functions as a link farm, pointing to numerous external URLs hosted on various domains, some of which appear to be compromised WordPress sites, increasing the likelihood of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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 https://pmms-online.com/assets/file/givemimowuvepuku.pdf In PDF document text
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1609b90582fa23---4812576172.pdfIn PDF document text
- http://qiangka.com/ckfinder/userfiles/files/4799732538.pdfIn PDF document text
- http://bkdesign.ee/userfiles/file/gimawanuzojibuvajuxipaxo.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9c84e63db2---14708662651.pdfIn PDF document text
- http://noithatphathuy.com/Images_upload/files/9551666616.pdfIn PDF document text
- https://grupo.iberia.es/js/ckfinder/userfiles/files/89776336709.pdfIn PDF document text
- http://labotinnghia.com/img/files/5046982560.pdfIn PDF document text
- http://dkyangmei.com/uploadfile/file/2021070601291473499.pdfIn PDF document text
- http://hyundaidongdo3s.com/images/files/pinerenupigeruvudaxax.pdfIn PDF document text
- http://weiken-rc.com/upload/files/21089351682.pdfIn PDF document text
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/78b30850c6c9402b0927ff7a98e35b90/85560241297.pdfIn PDF document text
- http://fpsh1980.com/clients/7/7d/7de5299bd6bdc19cdd6b275c058e9c4a/File/posusufebudozejubikuteb.pdfIn PDF document text
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/4a217c95346031ae401ed244a275ac14/xuxudafogoluj.pdfIn PDF document text
- https://didacostruzioni.it/userfiles/file/32463064779.pdfIn PDF document text
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6b7c093cc8---sotapuxuliluvisal.pdfIn PDF document text
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608b3ae45ac11---mibozimobadolo.pdfIn PDF document text
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/k4o0ev0lbg8sde20j81ev5qagm/9502567634.pdfIn PDF document text
- http://idroter.org/userfiles/files/tixuziruger.pdfIn PDF document text
- http://www.peritaonline.es/ckfinder/userfiles/files/tarizajugebavukatir.pdfIn PDF document text
- https://nadinerogger.ch/userfiles/files/werunuxuse.pdfIn PDF document text
- http://drairtools.com/ckfinder/userfiles/files/21861646992.pdfIn PDF document text
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160814b97627e3---67650241567.pdfIn PDF document text
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160747bb08feb8---kegeteweris.pdfIn PDF document text
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/2b2bdbe2c8ac3e23f78e98b1065314d6/78476542656.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=replace+color+in+an+imagePDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c843.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC843 | 17048 bytes |
SHA-256: 7859c4e07e29a9235e95bf8c855faaa395e3ab44300e612b941923be294b6a93 |
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font_01_sfnt_off0000f432.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF432 | 10496 bytes |
SHA-256: 5af6533cc2b58afa12015974ce29c73812d95e2a3889af4a5767eca5a528785d |
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font_02_sfnt_off00010bf9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BF9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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