MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to disposable hosting or compromised CMS upload directories, suggesting a link farm designed to redirect users to malicious sites. The PDF structure and embedded links are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://krisoc.ru/uplcv?utm_term=soccer+heads+euro PDF link annotation
- http://studiotipaldo.com/userfiles/files/96243738508.pdfIn PDF document text
- https://www.retake.dk/ckfinder/userfiles/files/bemaduwixotudurevanox.pdfIn PDF document text
- http://portableandcool.com/files/files/8240279940.pdfIn PDF document text
- http://hidropro.hu/upload/fanopeneroponegobenalex.pdfIn PDF document text
- http://veraschwemmle.de/fckdata/file/83225448529.pdfIn PDF document text
- http://087334211.kad.tw/kads/ckfinder/userfiles/files/65789116090.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143acab29797---57121324934.pdfIn PDF document text
- http://punaide.com/userfiles/files/wanavovabir.pdfIn PDF document text
- http://dgjst.com/upfile/file/pilofu.pdfIn PDF document text
- http://vet-spb.com/userfiles/file/28359765518.pdfIn PDF document text
- https://calienglish.com/ckfinder/images_store/files/67999352862.pdfIn PDF document text
- http://laboratoriologos.it/userfiles/files/15111285529.pdfIn PDF document text
- https://asiahealth.standrewsdentalsurgeons.com/ckfinder/userfiles/files/buwubepatenomaloja.pdfIn PDF document text
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/6ef3c58abb80e602603112f4d517739a/80382586995.pdfIn PDF document text
- http://cesurmakina.com/userfiles/file/38254141674.pdfIn PDF document text
- http://vinabomi.com/uploads/userfiles/file/98574784685.pdfIn PDF document text
- https://seerupit.dk/assens/file/sikuzi.pdfIn PDF document text
- http://qdxqw.com/uploadfile/file/volazedigigugevi.pdfIn PDF document text
- https://tepihtrava.rs/files/buduvezuwejuzekaxe.pdfIn PDF document text
- https://luckyfood.itweald.com/uploads/files/61400ab5eff17.pdfIn PDF document text
- http://fusheng-vietnam.vn/admin/webroot/upload/image/files/12014406008.pdfIn PDF document text
- http://2018.letnifestiwal.pl/ckfinder/userfiles/files/wowobunojo.pdfIn PDF document text
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/985af1b5a5314787b8e0dbc802fab22e/8558138673.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_off0000c0e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0E9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d900.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD900 | 10304 bytes |
SHA-256: 81817f66f2c609cc52d43232fcd0842447f7a35b5ff43468ada046a3e318c07c |
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font_02_sfnt_off0000f048.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF048 | 17296 bytes |
SHA-256: 776baf420ea4ccf3b6af97ca829370f393c84cacc3df8d1e4b363956777efe96 |
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