MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, flagged by ML classifiers and ClamAV as malicious. It exhibits characteristics of a link farm, with numerous URLs pointing to potentially compromised or disposable hosting sites. The embedded JavaScript likely facilitates the redirection to these malicious sites, contributing to a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
Heuristics 7
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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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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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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://wcsps.com.tw/ckfinder/userfiles/files/movulozobeguladotokadagu.pdf In PDF document text
- http://kondicionery-noginsk.ru/upload_picture/file/9146449564.pdfIn PDF document text
- http://xn--9w3b270a7kf.kr/ckfinder/userfiles/files/sakofabave.pdfIn PDF document text
- https://kheops-so.fr/ckfinder/userfiles/files/nanasil.pdfIn PDF document text
- http://lamelove-zakryti.cz/userfiles/file/wapax.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a1be84e19a---433914228.pdfIn PDF document text
- https://benhgout.net/uploads/Files/file/bupalujivakaxog.pdfIn PDF document text
- https://telechips.com/ckfinder/userfiles/files/49197094024.pdfIn PDF document text
- http://www.gleason.com.au/application/third_party/ckfinder/userfiles/files/4702306995.pdfIn PDF document text
- https://waxparadise.pl/userfiles/file/79772218435.pdfIn PDF document text
- https://chorland-dining.com/webroot/editor-uploads/files/14548689204.pdfIn PDF document text
- https://kingdomofgodmn.org/userfiles/files/70680277619.pdfIn PDF document text
- http://singer-island-condos.com/userfiles/files/49827300219.pdfIn PDF document text
- https://fishboat.hr/files/42339693631.pdfIn PDF document text
- http://www.aaar.cat/assets/js/ckfinder/userfiles/files/68831027191.pdfIn PDF document text
- http://nissanotogovap.com/uploads/images/files/54140660394.pdfIn PDF document text
- https://faceless.me/userfiles/files/19020950216.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16133123835ad2---pewosijowagusobupigafage.pdfIn PDF document text
- http://clean-ecology.com/Upload/files/lutupewafivo.pdfIn PDF document text
- http://haithuanphat.com/uploads/files/fowijakatodexujobeger.pdfIn PDF document text
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/16138733a3ae0e---495333114.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=common+words+that+start+with+oPDF 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_off0000ce0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE0D | 10452 bytes |
SHA-256: 1e6e81e79ed4259058c20754282dc3e3ff870128f6579a31c717699e64427972 |
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font_01_sfnt_off0000e598.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE598 | 17080 bytes |
SHA-256: 64a890ed56ca7a398431ddf93023027eb38a9923777944d3421b780d7d84506f |
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font_02_sfnt_off0001116d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1116D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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