MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the execution of JavaScript to download a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://coretry.ru/uplcv?utm_term=p30+pro+update+android+11
- http://dominoliberec.eu/images/file/files/waleta.pdf
- http://park-seversk.ru/other/js/ckfinder/userfiles/files/14034904554.pdf
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/161410c1a7e5a0---45130704545.pdf
- http://mprime.net/ckfinder/userfiles/files/26263991858.pdf
- http://www.solarwindependence.com/ckfinder/userfiles/files/nezizekudedoxuvubafijoli.pdf
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/h95o995d7p9na2vrpi1l931bu9/85043445140.pdf
- https://ultralloy.net/upload/files/82881589652.pdf
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e0f494766f---34461095389.pdf
- https://tjpapigroup3.com/contents/files/jedaj.pdf
- http://julianowka.pl/ckfinder/userfiles/files/zodimevarebazerukekujugo.pdf
- https://amd-export.com/site/upload/file/suwajiganofuvuket.pdf
- https://rent-1.es/ckfinder/userfiles/files/dijogexotopitaz.pdf
- http://libron.pl/fckupload/assets/file/rogesikapemelata.pdf
- https://www.vignolaweb.it/ckfinder/userfiles/files/7879195052.pdf
- http://siblom.ru/files/upload/file/nefinapegadokujilep.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614228cf9a690---fegoxuxiwomefaze.pdf
- http://factorycontrolprojects.com/userfiles/file/pekifol.pdf
- https://egf.tw/test2/images/file/ralarajuw.pdf
- http://watdoenwevandaag.nl/upload/22264279758.pdf
- http://wingmanplanningdemo.com/userfiles/files/17216884638.pdf
- http://vigova.vn/Images_upload/files/92841838340.pdf
- http://gorsilawfirm.com/userfiles/file/28922668731.pdf
- http://lehnerkom.de/images/uploaded/file/39228305506.pdf
- http://jsushibrea.com/uploads/files/lixawifiz.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_off0000c2fb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC2FB | 16792 bytes |
font_01_sfnt_off0000db0d.bind9a32cd7a26f87255dca3d1c8117dcd764075f21727da09ccfbe814c20704005 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB0D | 16368 bytes |
font_02_sfnt_off000104f2.bindd1848c1713a7bfd7ec1ddde8e11fe64422af045c9c77aa637ab6878c9920a05 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104F2 | 10620 bytes |
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