MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The PDF structure and embedded URLs are consistent with attempts to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
Heuristics 6
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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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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://synerhu.ru/uplcv?utm_term=windows+movie+maker+old PDF link annotation
- http://studiotecnicodavico.eu/userfiles/files/63429111606.pdfIn PDF document text
- http://viviapalermo.com/userfiles/files/nasixoneguwazuma.pdfIn PDF document text
- http://www.kotolantopeni.cz/files/30024796977.pdfIn PDF document text
- http://rtm-plus.ru/ckfinder/userfiles/files/36002967173.pdfIn PDF document text
- https://sdhouse.info/ckfinder/userfiles/files/32603858707.pdfIn PDF document text
- http://testgit.begurholidays.com/uploads/userfiles/files/wesuronovetinufowavikit.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612f4fb53e1da---46491271623.pdfIn PDF document text
- https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/202522b9d24e7c8cd851cb79344ddc9a/78054048571.pdfIn PDF document text
- http://ihanzao.com/userfiles/file/20210904215634_1610583629.pdfIn PDF document text
- http://fujieshubao.com/zk/UploadFile/file/2021090516244373499.pdfIn PDF document text
- https://edenestates.com/ckfinder/userfiles/files/lozedosakoxuro.pdfIn PDF document text
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/161381353e02b3---59947285515.pdfIn PDF document text
- https://pasationtravellers.com/root/FCKeditor/file/lubula.pdfIn PDF document text
- http://apartament-krokus.pl/userfiles/file/robowakinawux.pdfIn PDF document text
- http://sunriverps.com/data/editor/file/74196646560.pdfIn PDF document text
- http://www.corazondelsol.es/ckfinder/userfiles/files/9548000919.pdfIn PDF document text
- https://xn--80aaijz0c.xn--p1ai/ckfinder/userfiles/files/savimuzejutivufiza.pdfIn PDF document text
- https://samsungklima.net/upload/ckfinder/files/96151726722.pdfIn PDF document text
- http://commune-bourre.com/userfiles/file/72649724166.pdfIn PDF document text
- https://mavibusiness.it/file/jezul.pdfIn PDF document text
- http://npi-management.com/ressource/site-image/files/bivogigoni.pdfIn PDF document text
- http://okeefesreef.com/ckfinder/userfiles/files/rukimituvamisuzexiwaluzo.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/31854386960.pdfIn PDF document text
- http://luatsugiadinhviet.com/upload/ck/files/dowajirurubuvusekav.pdfIn PDF document text
- http://ainut.fi/userfiles/file/dobarusobelukogibilavuxop.pdfIn PDF document text
- http://mfo-fond.ru/ckeditor/ckfinder/userfiles/Images/files/kutetiponuna.pdfIn PDF document text
- 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_off0000b279.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB279 | 10548 bytes |
SHA-256: 972542660dd398810ad29c035e778899046a1f30b3fb9f3ea4ba2d43b40b0543 |
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font_01_sfnt_off0000ca7e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA7E | 15092 bytes |
SHA-256: fe04d5bc8fe19991dc1ca282b4c30ba7d1445d5f4c02f14226c2312ca653872b |
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font_02_sfnt_off0000f0a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0A2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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