MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains numerous links pointing to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates the document is designed to leverage these compromised sites for hosting malicious content or redirecting users. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://laborke.ru/uplcv?utm_term=country+boy+first+and+middle+names
- http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16074682bd3ecb---58555312073.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160af968c76ea8---gubuzebilukadaduvetufowak.pdf
- http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20210625_3C2AA1980FE62DEF.pdf
- https://securityguardsupply.org/php/uploads/file/53448896736.pdf
- http://euroinstytut.pl/galeria/file/62564223558.pdf
- http://chinazzjx.com/d/files/9756278095.pdf
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607046aa457e2---fekik.pdf
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/94f00904e779e83910853c62f85e1bd6/zigojax.pdf
- http://iehyun.com/editorupload/file/zorubikijipagonesarodi.pdf
- https://organicfertilizerproduction.com/d/files/48709192638.pdf
- https://fleuriste79.fr/ckfinder/userfiles/files/mewanukujajojap.pdf
- https://www.acetechnology.co.in/wp-content/plugins/super-forms/uploads/php/files/1t01264cn0896d4o29t55ekfua/90050027822.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16077ff895feac---45417825084.pdf
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/9a0abb9931984e37d35035baf69d0c6b/mifizumumiwolisuxeju.pdf
- http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2cdf6ccb2---xajumakixopazila.pdf
- https://unicon-msk.ru/data/files/lijiwepapizujodafiraxuvel.pdf
- https://repare-ton-smartphone.com/userfiles/file/dapomafog.pdf
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607b5a86efb85---famuduvowilijabepirujadab.pdf
- https://ceral.pl/ceral/pliki/file/rufiziximigiwazujejo.pdf
- http://strahovka66.ru/userfiles/file/bubod.pdf
- https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/620afa3fbbe4a759a2b1320893043864/kadosivisok.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160d876410a673---23122852007.pdf
- http://www.anjhimayath.com/upload/file/zamixujej.pdf
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/2ntlaoh0ub8dotjo268dfrcdk6/tabadapas.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_off0000efb2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFB2 | 16792 bytes |
font_01_sfnt_off000107c4.bin9898c50d50661e7c067b267f160195c2294a6d4f0f60dd1a2e04a6399c232752 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107C4 | 17400 bytes |
font_02_sfnt_off00013551.bina682fe6c3899dab226b685ab73c459191020ba805b075c77509cf688a1baa738 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13551 | 10900 bytes |
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