MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV. It contains numerous external URIs, many of which are hosted on disposable domains, suggesting a link farm or phishing lure. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a pattern of using many distinct hosts with few links per host, a common tactic for evading detection and distributing malicious content. The presence of embedded URLs further supports the attack pattern of redirecting users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://smidgel.ru/uplcv?utm_term=barron%27s+sat+math+level+2+pdf PDF link annotation
- http://goteneplast.se/files/images/file/nibolimuzorutuxalo.pdfIn PDF document text
- http://dryoucosmeceutical.com/userfiles/files/taxanubiwixaxafuf.pdfIn PDF document text
- http://aaykpn.com/uploads/editor/files/kuwew.pdfIn PDF document text
- http://olympusflights.com/files/files/33965790515.pdfIn PDF document text
- http://onyx-innovations.com/assets/ckfinder/userfiles/files/25669456572.pdfIn PDF document text
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130088bbf297---76908353916.pdfIn PDF document text
- http://21cedu.com/pds/userfiles/files/lodapozawebokosiwopeta.pdfIn PDF document text
- http://hanarotalk.com/userfiles/file///jodopipanobopokoni.pdfIn PDF document text
- https://tahubunting1.com/contents/files/81424070810.pdfIn PDF document text
- https://unitytradecapital.com/ckfinder/userfiles/files/sugubil.pdfIn PDF document text
- http://4bx.pl/public/file/95034364023.pdfIn PDF document text
- http://camel-republic.com/media/userfiles/files/wugiloxovikukiduvaboxuzin.pdfIn PDF document text
- https://cuacuonbentre.com/upload/files/sajesagadunol.pdfIn PDF document text
- https://francemonde.news/UserFiles/file/22383150367.pdfIn PDF document text
- http://elateridae.com/images/FCKeditor/file/saloxusijirejibirogol.pdfIn PDF document text
- https://piphoto.tw/uploads/files/202109061114504932.pdfIn PDF document text
- http://machinegroup.ru/img/outer/files/2809630847.pdfIn PDF document text
- http://ski-experience-japan.com/images/blog/file/zemekasatije.pdfIn PDF document text
- https://www.milestonesmn.org/ckfinder/userfiles/files/memamedidarogijozare.pdfIn PDF document text
- https://promoxcenter.ro/ckfinder/userfiles/files/70474259603.pdfIn PDF document text
- http://lacasedescaraibes.fr/file/69227899291.pdfIn PDF document text
- http://zubrcup.by/files/files/20659437098.pdfIn PDF document text
- http://parateam.cz/file/vinesowa.pdfIn PDF document text
- https://hsiaoying.com/userfiles/file/xebupexex.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_off0000c5e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5E4 | 17028 bytes |
SHA-256: df24fa8dd8fe5579cfcef855b490a0e8ea1ad15804e76a60efaec89fc61736a1 |
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font_01_sfnt_off0000f1d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1D5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000109ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109EC | 10944 bytes |
SHA-256: b2635d474dcc2ff2f2aea6726c071db53066481ada26f2256eb7a272fab31279 |
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