MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which are hosted on disposable domains and appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to malicious sites for further exploitation or phishing. The embedded JavaScript is a common technique for initiating malicious actions within PDF documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://santiagoporter.com/js/ckfinder/core/connector/php/files/pisunameturorek.pdf In PDF document text
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cb65406f79---dudojiru.pdfIn PDF document text
- http://aguito.madteam.net/ckfinder/userfiles/files/gabuvilizijadujunosu.pdfIn PDF document text
- http://epwuae.com/userfiles/file/97593853246.pdfIn PDF document text
- https://www.iieng.org/editor/ckfinder/userfiles/files/28885797898.pdfIn PDF document text
- http://rejs2013.cycling-recycling.eu/imgturysta/files/wowalivubulada.pdfIn PDF document text
- https://pikhospital.com/ck_uploads/uploads/files/35368258462.pdfIn PDF document text
- http://massvt.sk/editor_uploads/system/files/81324382307.pdfIn PDF document text
- https://bisleriuber.genefied.co/ckfinder/userfiles/files/ditavivejusesosurevozup.pdfIn PDF document text
- https://voziky-paletove.cz/mctree.cz/pictures/other/files/koruv.pdfIn PDF document text
- http://markasib.ru/ckfinder/userfiles/files/34510908921.pdfIn PDF document text
- http://ateliergermain.net/sites/default/files/file/wumofanalifopivub.pdfIn PDF document text
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161331624b02e7---solezepemizugo.pdfIn PDF document text
- http://qdsenfeng.com/data/files/jupudabafus.pdfIn PDF document text
- http://ccadl.com/files/20210902093043.pdfIn PDF document text
- http://caerulumpharma.com/upload/files/74156727238.pdfIn PDF document text
- https://delphin-bau.com/ckfinder/upload/files/wuwirig.pdfIn PDF document text
- http://deauville.ru/files/file/banegegija.pdfIn PDF document text
- http://recko.ru/ckfinder/userfiles/files/najamiriwefekaxuzibo.pdfIn PDF document text
- http://czernavendeghaz.hu/admin1/file/zeviziwuwokewamifokuk.pdfIn PDF document text
- http://good163.cn/Uploadfiles/files/15147798455.pdfIn PDF document text
- http://gustosandvic.com/ckfinder/userfiles/files/6365839034.pdfIn PDF document text
- https://silky.ae/images/bulk_images/files/sasobilazameliteku.pdfIn PDF document text
- http://tubesealer.com/uploaded/file/12711742836139dc01c9a57.pdfIn PDF document text
- http://rqconsultores.com/userfiles/file/kuwimojedinupuzepotufen.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=how+to+move+folders+from+phone+to+sd+cardPDF link annotation
- 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_off0000cd79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD79 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e590.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE590 | 10936 bytes |
SHA-256: cfc4473023069ce386879a9edefc00770a22a7d0eaf3eda038f02f484ead7223 |
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font_02_sfnt_off0000febf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEBF | 18592 bytes |
SHA-256: 1149735dbc149ad0f80c1195f590b0b754cd038cea108ec88170c4bcd62d00bb |
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