MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs that point to various websites, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The presence of multiple PDF-specific heuristics related to URI and link farms further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://crysiq.ru/uplcv?utm_term=local+multiplayer+ios+games+2019
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/f60ee59f82a006cf0dd6f024db9c54ce/51107283428.pdf
- http://patriabrno.cz/userfiles/files/joxerowemenagatoxadiwo.pdf
- http://ateliergermain.net/sites/default/files/file/sidimaveki.pdf
- http://tencanpowder.com/d/files/ziwofozisixanowo.pdf
- http://abwsalisbury.com/uploads/files/duziv.pdf
- http://scouttautomotive.com/editor_uploads/system/files/refajuvojulesif.pdf
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/16139aa0a43625---96578095137.pdf
- https://livnica-metalurg.com/images/pages/file/2887295155.pdf
- http://ckrestaurantgroup.com/ckfinder/userfiles/files/61466694073.pdf
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/oanddtqsceog8hqou57u1gur1j/pifum.pdf
- http://investgeorgia.ge/userfiles/file/57058245585.pdf
- https://abcoegypt.com/userfiles/files/bivumi.pdf
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/163aaa405f4904aca432007de9efc5c1/33588913915.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131c1e86b088---32200108258.pdf
- https://skopjemuzikon.pmgrecordings.com/ckfinder/userfiles/files/piwunu.pdf
- http://anbao.vn/uploads/userfiles/file/zoridevag.pdf
- https://cursosadistanciayonline.com/medios/files/xolijexivu.pdf
- http://mastervgtour.by/var/upload/file/ruromimefosupe.pdf
- http://belniig.by/public/file/90476917911.pdf
- http://boek.se/bilder_umeny/File/kuzegojeluzoforeg.pdf
- https://asiquim.com/ckfinder/userfiles/files/pewejoxa.pdf
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138870a27886---74061957700.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_off0000f0bc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0BC | 16792 bytes |
font_01_sfnt_off000108d3.bina173308d755390db80d9adf8c7c42c1d84a3415427868b45917f207d8041e882 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108D3 | 11244 bytes |
font_02_sfnt_off00012357.binfea03d3e70d090964228c71f7c71172094084f910fe747862c23ad9de06f51b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12357 | 18848 bytes |
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