MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs and links to compromised CMS upload storage, suggesting it functions as a link farm or redirection mechanism to phishing or malware sites. The presence of embedded JavaScript, though not fully detailed, further supports its role in executing malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
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://inwebjor.ru/uplcv?utm_term=experiential+approach+to+learning
- https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160f9f9232160b---32548445964.pdf
- http://karpatskiles.ru/store/file/44409215124.pdf
- https://vietnaminsight.biz/ckfinder/userfiles/files/mirebedaserefi.pdf
- https://matrainagycsalados.hu/userfiles/file/gotabazofufonenaguxezuvus.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16112ffd3eee26---42042579881.pdf
- https://pharmnet.cz/ckfiles/files/files/74979911766.pdf
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160750cb991025---60775854409.pdf
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/4e1682dd9ee654d72d8dc525ff3f1abe/45649530688.pdf
- http://portalkucharski.pl/app/webroot/media/files/18227978084.pdf
- http://pamat.ro/UserFiles/file/firogur.pdf
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1608d20eb087ac---dapeguf.pdf
- https://postelezmasivu-liberec.cz/ckfinder/userfiles/files/tanenojifobudasola.pdf
- http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/bakiwixesugiwakiravaneli.pdf
- http://toanthinh.vn/webroot/img/files/14420569097.pdf
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609f68b42b9f8---76384636984.pdf
- https://thuaphatlaihanoi.net/uploads/files/58294710525.pdf
- https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca4627947d---57044624143.pdf
- http://akcjonariusz.com/UserFiles/file/tezasuvorufalil.pdf
- https://aterhesseg.com/up_image/file/20045406287.pdf
- http://bora.su/ckfinder/userfiles/files/gekusanemizi.pdf
- http://budka39.ru/files/befaginuwaxonukepa.pdf
- http://amctop.com/board_data/editor_img/file/202105191638.pdf
- https://nutritie-metabolism-sanatate.ro/app/webroot/files/userfiles/files/82989571968.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_off0001083a.bindd0062ce8ac3d8e642e4557e836e6cf703a7bff181263408a73e13dac170230e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1083A | 10572 bytes |
font_01_sfnt_off00012042.bind54427d823749b19eb91f2b81a76d2886d9348cfea633487df303c74659c5669 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12042 | 16972 bytes |
font_02_sfnt_off00014cd1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14CD1 | 16792 bytes |
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