MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of external links, many hosted on compromised or disposable domains, indicative of a link farm used for phishing or malware distribution. The ClamAV detection and ML classifier strongly suggest malicious intent, specifically identified as a phishing trojan. While no scripts were explicitly extracted, the nature of the PDF and its numerous links align with techniques used to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
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://pistant.ru/uplcv?utm_term=como+configurar+email+hotmail+no+android PDF link annotation
- https://footballsod.com/images/ck-uploads/files/zejuxuzo.pdfIn PDF document text
- http://lsmtrontractor.com/upfiles/file/20210905001714.pdfIn PDF document text
- https://www.esfa.bg/root/ckfinder/userfiles/files/nodamokat.pdfIn PDF document text
- http://sportservistocik.cz/UserFiles/File/52816064360.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/9b8d117ee5a79d2e4466d1cf88cbbce2/tuzulujap.pdfIn PDF document text
- http://abwrosedale.com/uploads/files/zivuvokaka.pdfIn PDF document text
- http://www.mustwalge.ee/data/content/files/88632526878.pdfIn PDF document text
- https://cafepiolho.com/uploads/assets/rijesu.pdfIn PDF document text
- https://swagath.co/new/ckfinder/userfiles/files/97144272139.pdfIn PDF document text
- https://zifu-tech.com/app/webroot/userfiles/files/99140965641.pdfIn PDF document text
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/7ejef775or56dnp0m92e67si33/89419157719.pdfIn PDF document text
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146f402d2e21---taladijew.pdfIn PDF document text
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613011f034e58---lavevatamuvepodofe.pdfIn PDF document text
- http://appextskihjthj.handysociality.com/upload/files/57104110287.pdfIn PDF document text
- http://bckbytow.naszbip.pl/img/upload/files/3782772657.pdfIn PDF document text
- http://resurrection-life.net/userfiles/files/sozoloxarudiwudosugeze.pdfIn PDF document text
- https://kolkatanagariksammelan.org/ckfinder/userfiles/files/8437741668.pdfIn PDF document text
- https://youxsoft.com/uploads/files/wewub.pdfIn PDF document text
- http://coverybox.box8websites.com/ckfinder/userfiles/files/24721006818.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/161317809a7679---luket.pdfIn PDF document text
- https://elemental-ia.com/userfiles/file/fatira.pdfIn PDF document text
- http://kezmosas.hu/files/file/jubosurulabezizu.pdfIn PDF document text
- http://versobrokers.eu/userfiles/files/ropijeporiluvopogax.pdfIn PDF document text
- https://drhuanghair.com/uploads/files/202109021214103198.pdfIn PDF document text
- http://grafittipng.com/userfiles/files/pewajujujukerevawen.pdfIn PDF document text
- http://brenno-tojestto.pl/userfiles/file/2350257485.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_off0000b146.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB146 | 15116 bytes |
SHA-256: 9f93dfd524ee34800a27604284d0a02a33e68316d237bc4188ffac4ada95bafb |
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font_01_sfnt_off0000d778.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD778 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ef8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF8F | 10888 bytes |
SHA-256: 955e558d5dd1c71ce915181ea88ae2466e44deac6bb3b284dc4a358bf27e9675 |
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