MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous embedded URLs that point to various domains, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this. No scripts were extracted, but the overall structure and URL distribution indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9959
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://irlanc.ru/uplcv?utm_term=iso+2+usb+no+root PDF link annotation
- http://botosani.ro/img/uploads/file/retivenuvotaribodige.pdfIn PDF document text
- http://24cvety.ru/upload/files/zamarupezufiganipe.pdfIn PDF document text
- https://iasvn.org/Images_upload/files/31658708276.pdfIn PDF document text
- https://doctornhospital.com/banglanews24/editorsfiles/files/45811841911.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614178023333f---pitesurejinali.pdfIn PDF document text
- https://path.mn/userfiles/files/58988085264.pdfIn PDF document text
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/aa96eed212412a4d80bccd8a4a4e959c/3884528283.pdfIn PDF document text
- http://ingegnasrl.com/userfiles/files/fepenozubokipemus.pdfIn PDF document text
- http://yokohama-model.com/userfiles/files/89815576179.pdfIn PDF document text
- http://hoteldanang.vn/uploads/images/files/lujokolireterivetazov.pdfIn PDF document text
- http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130eeb86d1ae---titozetijewiwuke.pdfIn PDF document text
- http://honda-vo.com/upload/file/bolotejimesigajekulipam.pdfIn PDF document text
- https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/b56a4701b3b5a85789c38ce044739d71/3285134620.pdfIn PDF document text
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/161416180797e5---94199301332.pdfIn PDF document text
- http://helenhotel.vn/upload/files/xomoj.pdfIn PDF document text
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/161348009aeecf---84918478615.pdfIn PDF document text
- http://24hnbc.com/assets/ckfinder/core/connector/php/uploads/files/pisozefulavulagil.pdfIn PDF document text
- https://yesilkoyluleriz.biz/resimler/files/75575520619.pdfIn PDF document text
- http://ohsongpharm.com/ckfinder/userfiles/files/puniworotina.pdfIn PDF document text
- https://mzr-avocats.com/buddha/ckfinder/userfiles/files/94627080656.pdfIn PDF document text
- https://ourcampuswindow.com/ckfinder/userfiles/files/xasupuxenux.pdfIn PDF document text
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161442d917d3a9---bejoduxewew.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16136c21f44433---85253478597.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_off0000af42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF42 | 9980 bytes |
SHA-256: 953a61867e4239956ea63d9507ccceb95f7560dc8054fda62d536266b1b661c9 |
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font_01_sfnt_off0000c597.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC597 | 16656 bytes |
SHA-256: 7f43b4b60108491b484400088a36263eb662f6bd73fa38a795c8eb4585428d75 |
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font_02_sfnt_off0000ef57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF57 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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