MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to a link farm hosted on disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for executing malicious code within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9827
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://tobn56.com/UpFiles/file/tewepak.pdf In PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1612f88532bd13---dumoselew.pdfIn PDF document text
- http://cokhihoangvinh.com/uploads/userfiles/file/jomexizulekalojimu.pdfIn PDF document text
- http://hyundainhapkhau.net/upload/files/giwirurijasigizolonezew.pdfIn PDF document text
- http://vincentianssjp.com/userfiles/file/sisetafafeluroxobakivup.pdfIn PDF document text
- http://reafamily.lt/ckfinder/userfiles/files/zirejomakonosonidup.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a064155d45---busijeja.pdfIn PDF document text
- http://elementsgogreen.com/userfiles/file/zomesirorejifotetofigisof.pdfIn PDF document text
- https://landbar.com/app/webroot/js/ckfinder/core/connector/upload/files/5784548484.pdfIn PDF document text
- http://chukguwang.com/files/fckeditor/file/7086234125.pdfIn PDF document text
- http://mcenterdk.ru/fck_editor_files/files/54083527314.pdfIn PDF document text
- http://www.de.ruben.pl/ckfinder/userfiles/files/gebawowasawuxozab.pdfIn PDF document text
- http://fcraregistration.com/UploadedData/file/81518401374.pdfIn PDF document text
- http://usmleworkout.com/files/file/28906199744.pdfIn PDF document text
- https://www.loscam.com/lib_common/ckeditor/ckfinder/userfiles/files/fogevalima.pdfIn PDF document text
- http://roberlo.cz/www/files/file/19629563581.pdfIn PDF document text
- http://naasschoolofmotoring.ie/fckeditor/userfiles/file/vubikejon.pdfIn PDF document text
- http://mertcelikkapi.com/userfiles/file/5174446835.pdfIn PDF document text
- http://ideatity.com/ckfinder/userfiles/files/11652852903.pdfIn PDF document text
- http://goref.ru/files/file/9071499397.pdfIn PDF document text
- https://feldmann-spedition.de/pics/userfiles/file/silimu.pdfIn PDF document text
- http://www.hz-kontejnery.cz/ckfinder/userfiles/files/33694175372.pdfIn PDF document text
- http://rjbmachinery.com/d/files/12371892989.pdfIn PDF document text
- http://tcihk.com/userfiles/30204617328.pdfIn PDF document text
- http://szigmetal.hu/editor_up/xalasaporigesal.pdfIn PDF document text
- http://wsp.pl/userfiles/file/97337009131.pdfIn PDF document text
- http://gazomotor.com/allinone/file/34739108168.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=the+bachelor+vietnam+watch+onlinePDF 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_off0000c9e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9E5 | 10580 bytes |
SHA-256: 8613accffe3220ba3abe3e10040b1e2d6dfcf20281134a6a24c29e9e1a4b9d3e |
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font_01_sfnt_off0000e1e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1E7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f9f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9F9 | 16220 bytes |
SHA-256: 4b12612d041407ef28f50333f4c4a6de179d032ad9fe463830c6a0670e2427a5 |
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