MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links pointing to compromised websites and disposable hosting, suggesting it functions as a link farm designed to redirect users to malicious content. The presence of external URIs and link farm indicators strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://krisoc.ru/uplcv?utm_term=yt+mp3+conveter PDF link annotation
- http://sherwoodonionfestival.com/ckfinder/userfiles/files/69846464335.pdfIn PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f3b1e74e78---52296507049.pdfIn PDF document text
- http://vinhhangvien.com/upload/files/18429907396.pdfIn PDF document text
- http://ativn.com/upload/file/jejunofusugero.pdfIn PDF document text
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/81dvkemn3uuto2phkss4v9ce4k/jewaxenoruzenupufanin.pdfIn PDF document text
- http://lnaixi.com/userfiles/file/20210917042842_1335477589.pdfIn PDF document text
- http://whkmradio.com/userfiles/file/26766016122.pdfIn PDF document text
- https://www.stock2morrow.com/ckfinder/userfiles/files/dalisuzaleb.pdfIn PDF document text
- http://xn----itbbfrdrdbd4bgy6gi.xn--p1ai/webroot/files/files/66854054641.pdfIn PDF document text
- http://brucemayrockinstitute.com/assets/ckfinder/core/connector/php/uploads/files/71626322939.pdfIn PDF document text
- https://kiaavcilar.com/upload/ckfinder/files/12700754738.pdfIn PDF document text
- http://gamecoast.by/uploads/files/50122616026.pdfIn PDF document text
- http://jrpst.pl/userfiles/file/koteketinetalugij.pdfIn PDF document text
- http://propertiesforrent.com/userfiles/file///72338158843.pdfIn PDF document text
- http://emailreceptionist.net/userfiles/file/19624817584.pdfIn PDF document text
- http://stagticket.com/fck_upload/file/33912853657.pdfIn PDF document text
- https://kaptenhoki.org/contents/files/nopiba.pdfIn PDF document text
- http://designbyjoseph.com/uploads/File/tatuxijoselojanotig.pdfIn PDF document text
- http://zgkimsteszew.pl/img/upload/files/55715135205.pdfIn PDF document text
- http://conniecorsentino.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/silupabiguxef.pdfIn PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/161399c291901c---73206956380.pdfIn PDF document text
- http://talleresjpg.es/img/file/12173625569.pdfIn PDF document text
- https://mtmnetwork.net/uploadEditor/files/90521511543.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_off0000b4a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4A1 | 17088 bytes |
SHA-256: 880a3928993a9145e9ea57210243b3699f5c10774294d1ca7c2bc13cfe736188 |
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font_01_sfnt_off0000e07e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE07E | 10288 bytes |
SHA-256: a14cf18c233530cf14608c8ddd0f93ed0089e471f1bec08326e75e1ffb3274d0 |
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font_02_sfnt_off0000f79e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF79E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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