MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which appear to be part of a link farm designed to obscure the ultimate destination. One prominent URL, 'https://synerhu.ru/uplcv?utm_term=play+services+download', suggests a lure for users seeking software downloads. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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=play+services+download PDF link annotation
- http://www.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/zunowake.pdfIn PDF document text
- http://kapelski.pl/userfiles/file/balotorewukazi.pdfIn PDF document text
- https://bharatiyabhashaparishad.org/ckfinder/userfiles/files/14929971208.pdfIn PDF document text
- http://tahyuh.com/uploads/files/202109130825323710.pdfIn PDF document text
- http://findacommodity.com/upload/file/tikinusowanukizimojakov.pdfIn PDF document text
- https://samsungdvm.net/upload/ckfinder/files/38689195874.pdfIn PDF document text
- http://highendschmiede.de/highendfiles/file/molejababufizipevage.pdfIn PDF document text
- http://maremio.ru/admin/ckfinder/userfiles/files/gupojirez.pdfIn PDF document text
- http://centromedicoveterinarioadda.com/userfiles/files/79899520233.pdfIn PDF document text
- http://thermocomfort.ca/userfiles/file/92743531134.pdfIn PDF document text
- https://ldcpc.com/ckfinder/userfiles/files/47916326611.pdfIn PDF document text
- https://anne-berger.de/sites/anne-berger.de/files/fkcfile/21279533043.pdfIn PDF document text
- https://autopsrus.aerovents.com/ckfinder/userfiles/files/52409706546.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb213eba65---56791009128.pdfIn PDF document text
- http://xn--80aiddhbkcq5bcaz.xn--p1ai/upload/files/baruvesurajojire.pdfIn PDF document text
- https://lajovisena.com/gallery/file/kotogubiwefexuwov.pdfIn PDF document text
- https://ckfinder.pamlskovnik.cz/ckfinder/userfiles/files/49961516168.pdfIn PDF document text
- https://hizlipin.com/calisma2/files/uploads/zonowazulekabawaduwe.pdfIn PDF document text
- http://tagsu.com/attachments/fckattachments/file/xujezaz.pdfIn PDF document text
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/jfgenptj8njvipkqht70ttp6f3/danotonofojo.pdfIn PDF document text
- http://toshiteriyakiburien.com/uploads/files/jefijepo.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_off0000d9d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9D7 | 17384 bytes |
SHA-256: e1928341a9fff375c7e70201a7a8de660e220701de7757f8dfaf466d33daaaba |
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font_01_sfnt_off0001066e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1066E | 10532 bytes |
SHA-256: 5dd269f1392c1295d5c65da8c20b3ddb6f212ff91a163f932d7b9239b42ba445 |
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font_02_sfnt_off00011ea1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EA1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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