MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains, suggesting a phishing or malware distribution scheme. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically points to this tactic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
Heuristics 5
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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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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=acute+coronary+syndrome+guidelines+2017 PDF link annotation
- http://solarwindependence.com/ckfinder/userfiles/files/43074904724.pdfIn PDF document text
- http://5mal4.de/moneyvidya/web/images/userfiles/file/65156347039.pdfIn PDF document text
- https://northwestconvention.cz/data/files/rekenubudatori.pdfIn PDF document text
- http://tehpromyar.ru/media/file/xopizogomimugezoxonewo.pdfIn PDF document text
- http://americasbestwingsbeltsville.com/uploads/files/34017546087.pdfIn PDF document text
- https://nhuadailoan.vn/upload/userfiles/files/57188724536.pdfIn PDF document text
- http://ametansk.ru/uploads2/solufif.pdfIn PDF document text
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1615351adcd79b---befulagevujifenafodi.pdfIn PDF document text
- http://smartickgroup.com/userfiles/xixaginudipegewajotisujam.pdfIn PDF document text
- https://rainbowfurnitures.com/files/files/gurudul.pdfIn PDF document text
- https://amt-alarmy.pl/userfiles/file/nitisonapizaterewumemudut.pdfIn PDF document text
- http://studioarchoggianiepartners.it/userfiles/files/22489863015.pdfIn PDF document text
- http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/tefotobeseginoxig.pdfIn PDF document text
- https://kemxoi.vn/app/webroot/files/images/pages/files/57673339061.pdfIn PDF document text
- http://giadinhmedia.com/uploads/files/kevajusezidolenej.pdfIn PDF document text
- https://allmassage.net/upload/file/20210928125656.pdfIn PDF document text
- http://inter-travel.hu/_user/file/saboti.pdfIn PDF document text
- http://vlajkylevne.cz/UserFiles/File/69566559239.pdfIn PDF document text
- http://indianspringhomes.net/userfiles/files/48016354619.pdfIn PDF document text
- http://autoscuolecasetta.it/userfiles/files/sopaximela.pdfIn PDF document text
- http://landonintergroup.com/ckfinder/userfiles/files/20935833123.pdfIn PDF document text
- https://costarica4d.com/contents/files/79728882748.pdfIn PDF document text
- http://chukysovin.com/img-svc/files/bawofapetawavigovirajese.pdfIn PDF document text
- http://travel-door.com/userfiles/file/35827117031.pdfIn PDF document text
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16141c44703b2c---74725855718.pdfIn PDF document text
- https://almuhja.com/ckfinder/userfiles/files/nukisobasurewuwur.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_off0000c3f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3F2 | 11252 bytes |
SHA-256: 9836d27810d4dcd336eb8115d0c0150da4f57591e8f12ce8650679f72e0cb085 |
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font_01_sfnt_off0000de51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE51 | 18888 bytes |
SHA-256: c1dff8acdc8bba487280716d1d48983a478550ad617bfdb94366590e8ee90ab9 |
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font_02_sfnt_off00010f96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F96 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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