MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as a malicious PDF by ClamAV and an ML classifier. It contains numerous external URIs, including one pointing to 'synerhu.ru', suggesting a phishing or malware distribution lure. The PDF structure and embedded links indicate it's part of a link farm designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://synerhu.ru/uplcv?utm_term=best+weight+tracking+app+for+android PDF link annotation
- https://rajaunited.com/contents/files/34238885513.pdfIn PDF document text
- https://ibexquimica.com.br/ckfinder/userfiles/files/3383568062.pdfIn PDF document text
- https://bevasilicones.in/userfiles/file/88604854591.pdfIn PDF document text
- http://sevinctekstil.com/resimler/files/lavur.pdfIn PDF document text
- http://nhatminhtrading.vn/app/webroot/uploads/files/lijupokum.pdfIn PDF document text
- http://cafesezony.ru/fck_editor_files/files/71958684391.pdfIn PDF document text
- http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/15332388100.pdfIn PDF document text
- http://icr34.fr/icr/icr34.fr/www/files/files/28346568138.pdfIn PDF document text
- http://mlsy.cz/images/file/files/90747629402.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/lugagafuni.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d6a76722c2---vuruwalevoxoguwofa.pdfIn PDF document text
- https://millinerandassoc.com/files/file/tosovekupajipoguraravofo.pdfIn PDF document text
- http://droneducational.com/admin/userfiles/file/kadugudifonelutomapexafas.pdfIn PDF document text
- http://apcmagon.com/userfiles/65228755147.pdfIn PDF document text
- http://mitsubishilongbien.vn/images/ckeditor/files/15585717814.pdfIn PDF document text
- https://badrivishal.com/media/22379218895.pdfIn PDF document text
- http://zdrowejaja.com/Upload/file/tebonarudi.pdfIn PDF document text
- http://canissapiens.com/images/uploads/file/bonudal.pdfIn PDF document text
- http://hasicimosnov.cz/foto/Image/file/70519933637.pdfIn PDF document text
- http://sswjeans.com/files/39227435127.pdfIn PDF document text
- https://manajrgvaaradhi.com/cms-uploads/files/vumizu.pdfIn PDF document text
- https://nhatngudongkinh.phapluatvietnam.com/upload/ckupload/files/xasigeditaraxujedagitenev.pdfIn PDF document text
- http://gro-felix.si/uploads/79709859239.pdfIn PDF document text
- https://pollackmihalyiskola.hu/ckfinder/userfiles/files/64635719988.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614037a3c34ca---64367033928.pdfIn PDF document text
- https://skywaynepal.com/userfiles/file/72459774344.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_off0000f666.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF666 | 11084 bytes |
SHA-256: ec8091cb531a6d4f292c2a9bc3c87607056ec703a95df88f6532e903b90172ab |
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font_01_sfnt_off0001101b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1101B | 17084 bytes |
SHA-256: 95a126cbaec59d218cee0b486d2b77f188aba57b8f25c8ec979862bd9f2b4832 |
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font_02_sfnt_off00013c53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C53 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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