MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as 'Pdf.Phishing.Trojan' and a machine learning classifier with high confidence. Heuristics indicate the PDF contains a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution lure. The embedded URL, while appearing benign, is part of a larger pattern of suspicious link aggregation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://korean-school.hu/hangul/userfiles/file/bugejipezetadusewupi.pdf In PDF document text
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608e2309df9f3---51636185533.pdfIn PDF document text
- https://ahl2005.com/ckfinder/userfiles/files/5852380397.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/8e67eca0a62c8532851c2ce11d021123/12441174755.pdfIn PDF document text
- http://neilreardon.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lumomazivoxifogepolapod.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/raf90i6auc9mb83b5stboo1shk/73620277178.pdfIn PDF document text
- http://testplanet.nl/uploads/files/74286333303.pdfIn PDF document text
- http://abwlargo.com/uploads/files/99365611059.pdfIn PDF document text
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a08d3e97459---88400335409.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bbae6cd14ec---42829086410.pdfIn PDF document text
- https://sofupingame.com/calisma2/files/uploads/mafefudurakuvu.pdfIn PDF document text
- https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/allhodqu97d19u5l7hccf7ellq/74629308211.pdfIn PDF document text
- https://linker.tw/files/rapufifidir.pdfIn PDF document text
- http://vertracapital.com/uploads/files/52005016781.pdfIn PDF document text
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607598024a7c0---vonur.pdfIn PDF document text
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b1ac1c361b---69083036132.pdfIn PDF document text
- https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/f486da32a3e22f72e2d4e596f682a95b/25568670270.pdfIn PDF document text
- http://vhktn.at/images/content/files/18924831740.pdfIn PDF document text
- http://rotarylaspalmas.org/documentos/file/paviwazemojebunaripezig.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/883684dc7021d711d293354b51aa3237/lefisewigixarepiw.pdfIn PDF document text
- https://tectrongim.com/uploads/files/mivunanalolesunab.pdfIn PDF document text
- http://xn--b1agjlwjc3g.xn--p1ai/ckfinder/userfiles/files/kegon.pdfIn PDF document text
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160c9ae762f1e1---fepenobimazudedakekamuwuf.pdfIn PDF document text
- http://dollreunion2020.com/clients/4/43/4392dc7a9e9236654a628da0af121bbb/File/bifisej.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=reducing+the+size+of+a+pdf+file+on+macPDF 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_off0000efc5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFC5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000107dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107DC | 11172 bytes |
SHA-256: 4b1e07a1040debd767c9951e5fc31ca68f482370d23f34b9f83c3c7ef0872d54 |
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font_02_sfnt_off00012197.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12197 | 18452 bytes |
SHA-256: bd480b59dded8e71b6da8895859606ffe6965a079aa2f236486dc5be816e9795 |
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