MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to various websites, many of which appear to be compromised or disposable hosting, indicative of a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://bunyaminerdemir.com/resimler/files/68983093806.pdf In PDF document text
- http://tverzhilservis.ru/foktver.ru/ckfinder/userfiles/files/53853815582.pdfIn PDF document text
- http://sage-chem.com/image/files/20210903_180146.pdfIn PDF document text
- https://cometgroupinternational.com/ckeditor/ckfinder/userfiles/files/76982420884.pdfIn PDF document text
- https://youxsoft.com/uploads/files/36747811765.pdfIn PDF document text
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c736aab933---nipaxaxenukozaxakujas.pdfIn PDF document text
- https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/161339509f2f77---76673291150.pdfIn PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613190b5d2538---45892144252.pdfIn PDF document text
- http://bayernglobal.de/userVZ/file/36587110055.pdfIn PDF document text
- https://yam-token.com/business_school/uploads/file/20781689544.pdfIn PDF document text
- https://communeouchamps.fr/userfiles/file/2167854785.pdfIn PDF document text
- http://karlsbach.de/userfiles/files/futefivijodiwaliwafuni.pdfIn PDF document text
- http://brandweeramsterdamamstellanden.nl/userfiles/file/3700611106.pdfIn PDF document text
- http://lixupeng.com/uploads/files/sukavedajosibabutavudoso.pdfIn PDF document text
- http://kovacsoltvaskerites.hu/images/file/15924014109.pdfIn PDF document text
- https://ozora.schaffsen.com/contents/file/66743480543.pdfIn PDF document text
- https://dispecom.com/cms_dispecom/sgi_userfiles/userfiles/files/35063912773.pdfIn PDF document text
- http://area100impianti.it/userfiles/files/2442730537.pdfIn PDF document text
- https://signos.larrialdiak.es/files/galeria/files/60985466996.pdfIn PDF document text
- https://anbuadidravidarmatrimony.com/ckfinder/userfiles/files/gujebagujetuvitowe.pdfIn PDF document text
- http://thunderstar.cn/userfiles/file/20210914165408825964137.pdfIn PDF document text
- http://www.deewanalarab.com/up_imgs/xikusunitob.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/4vhsf4vlv70f9on4hepti2kf6q/ditesovi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=most+popular+photo+apps+for+androidPDF link annotation
- 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_off0000fb27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB27 | 17488 bytes |
SHA-256: 2c5b719304809df92d37785a5c24ef656eaa48ddaefc0eaf3515aabeb146389a |
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font_01_sfnt_off00012889.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12889 | 10556 bytes |
SHA-256: 9f8b3ef45a2562fc0186155297db4561953e47d32c4ac8be4060fbe30d81619a |
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font_02_sfnt_off00014089.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14089 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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