MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The primary attack pattern involves luring users through a malicious attachment to a site that likely hosts further malware or phishing content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://allytemp.ru/uplcv?utm_term=words+beginning+with+o+to+describe+someone
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/93ce46cd98317bf22bc6dafeec3f306a/4533153085.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/f6hivos2qiuqfi84vou11vpce8/80015755851.pdf
- https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/6not2oe4ipittj331dgnk2j665/wiwajove.pdf
- http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160c9839d7ee85---2575744603.pdf
- http://poltinik.ru/userfiles/file/9500800455.pdf
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/tbhi1veg5ucajrmrvlq5gn3ia0/65048246593.pdf
- https://wegofa.com/userfiles/file/xuxoxafeluwe.pdf
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/t6c4hl2le4ic0haae4l53a3lrv/vewotiniruloba.pdf
- https://nestaerospace.com/uploads/file/numole.pdf
- http://fmi.lu/userfiles/files/42606452831.pdf
- http://hungbuloon.com/media/ftp/file/xoruvefeveroduvenaxon.pdf
- http://kistours.hu/userfiles/file/mulubosodibapadinobaxebat.pdf
- http://cnkls.com/userfiles/file/1623783444.pdf
- http://lohsclassof70.com/clients/3/31/31ca850ff086a58b81c8700e10a01852/File/32423937370.pdf
- http://thongthien.vn/upload/files/13578975076.pdf
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078ed9393eaf---vuxamibenubudo.pdf
- http://seventyfirstclassof69.com/clients/60772/File/fawiwefoduwirufadebolide.pdf
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/52d642839f67dd52839704a1e1e09311/32026414048.pdf
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075e41b54105---pivowemaniw.pdf
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087cd49a7854---91850306488.pdf
- http://1960vonsteuben.com/clients/d/df/dfb5e1b83ea85bfdc5ef1da934264264/File/jalovetar.pdf
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083970e324f4---29776821038.pdf
- http://spreewaldatelier.de/img/editor/file/datufawavorefupugaban.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f0c4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C4 | 16792 bytes |
font_01_sfnt_off000108db.bine0c3e5ac6727d4664c23812dab1003641e405f973209d65c7089205c1384304c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108DB | 10828 bytes |
font_02_sfnt_off0001217a.binc67f484635be07acb43446ba0c046c8c02443dc79df1a52c12795888225d10fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1217A | 17008 bytes |
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