MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of external links pointing to other PDF files hosted on numerous disposable domains, indicating a link farm or SEO manipulation scheme. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. The presence of a large number of external links and the ML detection strongly suggest malicious intent, likely to distribute further malware or engage in phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://wirut.co.za/YmrXLWy8?keyword=does%20jason%20know%20at%20the%20end%20of%20us PDF link annotation
- https://contabil-fiscal.ro/mm/file/pajikejetitil.pdfIn PDF document text
- http://caratow.be/userfiles/file/xuvizeferejo.pdfIn PDF document text
- https://vuveresob.weebly.com/uploads/1/3/4/5/134589217/jagejak.pdfIn PDF document text
- http://faithhh.net/js/kcfinder/upload/files/gifurufuk.pdfIn PDF document text
- https://adpslunicko.cz/img/upload/files/mosogezumupijoxajovogi.pdfIn PDF document text
- http://atut-biuro.com/uploaded/file/volekar.pdfIn PDF document text
- http://highspiritsmusic.com/ckfinder/userfiles/files/binutuzusizajilovime.pdfIn PDF document text
- http://tse.net.in/assets/ckeditor/kcfinder/upload/files/lekemipumifojowozawik.pdfIn PDF document text
- http://dailymaytrogiang.com/userfiles/files/72803094417.pdfIn PDF document text
- https://tonurokekar.weebly.com/uploads/1/3/4/4/134456200/385724.pdfIn PDF document text
- http://studiotecnicoligioni.com/userfiles/files/muduxemavukovunowizud.pdfIn PDF document text
- https://voskovefiguriny.eu/kcfinder/upload/files/15431428981.pdfIn PDF document text
- https://bupedokan.weebly.com/uploads/1/3/1/6/131607930/gatofufal.pdfIn PDF document text
- https://jekuwetif.weebly.com/uploads/1/3/4/8/134887180/noxotutagidenab.pdfIn PDF document text
- https://godadonalizubo.weebly.com/uploads/1/3/1/4/131437317/xaninonipivobuwebi.pdfIn PDF document text
- http://ersenergy.com/UserFiles/file/komotu.pdfIn PDF document text
- http://montaze.org/democms/userfiles/file/biroropusinodujenirekozot.pdfIn PDF document text
- http://art-lan.ru/uploads/assets/file/99405318407.pdfIn PDF document text
- http://kleinschadenexperte.de/userfiles/file/lixekoboja.pdfIn PDF document text
- http://vicareyou.com/userfiles/file/43423839619.pdfIn PDF document text
- https://josadezabo.weebly.com/uploads/1/3/4/4/134490641/7841060.pdfIn PDF document text
- https://geligike.weebly.com/uploads/1/3/4/5/134590657/10bb5c.pdfIn PDF document text
- https://mafoguwof.weebly.com/uploads/1/3/1/4/131438304/57efb24113c39b.pdfIn PDF document text
- https://rejipunedeze.weebly.com/uploads/1/3/4/6/134652096/5545587.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 extracted file (font_00_sfnt_off0000f44c.bin)
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000f44c.bin)
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f44c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44C | 10624 bytes |
SHA-256: c2b499b7954f693fae371a03b1aed455f0aa9e4db0a988899c0ea48d19033f5e |
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font_01_sfnt_off00010cab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CAB | 16416 bytes |
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336 |
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font_02_sfnt_off0001234a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1234A | 16888 bytes |
SHA-256: 1f6ac80207fe5dfbb2641b487a06316a0dffe98db127515e68340348d9e7ee77 |
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