MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to PDF files hosted on various domains, including compromised WordPress sites. The presence of a link farm and the use of UTM parameters suggest a phishing or social engineering attempt to direct users to potentially malicious downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://queure.ru/uplcv?utm_term=download+delphi+7+full+version+free PDF link annotation
- https://nnt52.ru/userfiles/file/bagetisusu.pdfIn PDF document text
- http://luckdidea.com/ckfinder/images_store/files/xitizazuroxikibuxafi.pdfIn PDF document text
- http://abnicum.com/files/file/98101205712.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608acdd606e12---90091367242.pdfIn PDF document text
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab3972ea43---53113966305.pdfIn PDF document text
- https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/8e5436st848ve39lso5qge0m0g/fedawewe.pdfIn PDF document text
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606c914a5d847---80928023045.pdfIn PDF document text
- http://www.rpv-drachten.nl/files/file/21646268598.pdfIn PDF document text
- https://plentis.eu/ckfinder/userfiles/files/nalanuzaxokuxuzomef.pdfIn PDF document text
- http://mebelhotel.ru/userfiles/files/53480020442.pdfIn PDF document text
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c558fda3157---30853493063.pdfIn PDF document text
- https://autotrilogy.com/wp-content/plugins/super-forms/uploads/php/files/cf69beae1daf3596f4352a1860ddd8cd/melegopawiji.pdfIn PDF document text
- https://acronimocostanzo.com/userfiles/file/gisewuzunekuxawibiku.pdfIn PDF document text
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/f5ofi7k77tqfosq2dv50jqibfq/rekororovewivekel.pdfIn PDF document text
- http://karunb.com/UpLoads/files/xutuzavum.pdfIn PDF document text
- https://www.willmarshelter.com/ckfinder/userfiles/files/17973366358.pdfIn PDF document text
- https://isleo.com/i_photos/file/42298904732.pdfIn PDF document text
- http://peaceinsrilanka.lk/userfiles/file/30174527393.pdfIn PDF document text
- http://naturallabs.fr/userfiles/file/4969051508.pdfIn PDF document text
- http://ultraljud.nu/bild/files/48949476067.pdfIn PDF document text
- http://artospace.com/pics/file/wetubelidulixobogosabi.pdfIn PDF document text
- https://signika.pl/Upload/file/jujoju.pdfIn PDF document text
- http://libertyquad72.fr/userfiles/file/81023912045.pdfIn PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1608a03eef305d---genuwubojowe.pdfIn PDF document text
- https://mariapolis.net/ckfinder/userfiles/files/zatonenutugebuwogiw.pdfIn PDF document text
- http://angerdress.store/ckfinder/userfiles/files/jedigo.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_off0000d753.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD753 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ef6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF6A | 10800 bytes |
SHA-256: 5e0025d9025e56a30e7d232a98dd5944d9c34950b65cb336a19576d0efcb3921 |
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font_02_sfnt_off00010841.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10841 | 18288 bytes |
SHA-256: f3b9f4dca4754814fb771f7557700dfd1872987888d1d254d14efee12b9b9c14 |
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