MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is a PDF identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to compromised websites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the nature of the hosting indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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=is+it+possible+to+upgrade+android+version+on+phone PDF link annotation
- http://bsp-plovdiv.org/ckfinder/userfiles/files/monotanegodupikusarob.pdfIn PDF document text
- http://palami.by/images/file/73756609039.pdfIn PDF document text
- http://christmaslandint.com/userfiles/wagoz.pdfIn PDF document text
- http://stroytehcentr.ru/images/file/26971489491.pdfIn PDF document text
- http://sashtraayurveda.com/ckfinder/userfiles/files/86475289584.pdfIn PDF document text
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/0jpcuqpa6n1ifqlhte380p9l2s/nusufuxabip.pdfIn PDF document text
- https://akproauto.com/nbloom/fckuploads/file/mizexusami.pdfIn PDF document text
- https://mandarinkinesiska.com/userfiles/file/57739056234.pdfIn PDF document text
- https://acavacecio.it/userfiles/files/25970489895.pdfIn PDF document text
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613fa476101cb---70864991375.pdfIn PDF document text
- http://sinorarechem.com/upload/files/tenaxevezegadujis.pdfIn PDF document text
- http://chinajnbt.com/images/upload/File/67839470018.pdfIn PDF document text
- http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16143d8ad44d7c---65629793081.pdfIn PDF document text
- https://feng-shuiworld.com/userfiles/file/30055592010.pdfIn PDF document text
- http://szm.hu/userfiles/file/kokezopasiwedaku.pdfIn PDF document text
- http://helderlive.nl/ckfinder/userfiles/files/xizarel.pdfIn PDF document text
- http://irths.com/upload_files/files/biwug.pdfIn PDF document text
- https://grafconsulting.pl/Upload/file/fepif.pdfIn PDF document text
- https://dolupin.com/calisma2/files/uploads/33873878680.pdfIn PDF document text
- http://thetsaban3watnuea.com/UserFiles/file/kifuloto.pdfIn PDF document text
- https://muzpony.de/obrazki/file/38070914825.pdfIn PDF document text
- https://bisleriwheel.genefied.co/ckfinder/userfiles/files/rewejegufak.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_off0000ece3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECE3 | 18148 bytes |
SHA-256: 484b20bcda9ae08fc1747957df016dcdc42143a003190fadc145ca5289d84253 |
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font_01_sfnt_off00011c5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C5E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013475.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13475 | 10928 bytes |
SHA-256: 747ece44ab3782f717b9cdf8687cea00f6d79664ea9787e5471e5469dc974b46 |
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