MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external links, many pointing to compromised WordPress upload directories. This suggests the document is designed to act as a lure, potentially redirecting users to malicious sites or prompting downloads of further malware. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 7
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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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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 https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/coea74a08p2sp0c4pbhsbstea2/18803462979.pdf
- http://hla.vn/upload/files/monalixe.pdf
- http://jfhcoaching.nl/userfiles/files/25948244784.pdf
- http://namhungholdings.com/uploads/ckfinder/files/52098043449.pdf
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c6b00a1b8b---kepikesom.pdf
- http://upsshop.ru/ckfinder/userfiles/files/16369707510.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/fea589d809a30199bba34a855987d23f/buxafube.pdf
- http://yanarfabrics.com/firma/files/92557599656.pdf
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/6mo39p6bsa3aqf609ar31jst24/lafologeruludi.pdf
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/nb3mfcria4gd1k7dugjhtid2qn/66532778722.pdf
- https://nazrabilisim.com/calisma2/files/uploads/xulerewabopuzajepataxagam.pdf
- http://oreade-breche.fr/userfiles/file/86399732388.pdf
- http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16070321c1abbb---wuwusujotodabujotodasiw.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3d66815bd8---zuwirozip.pdf
- http://www.scea.edu.mn/ckfinder/userfiles/files/77649054561.pdf
- http://cuhs1981.com/clients/8/82/82ca37c076ec4232796cb58ed009bb3a/File/19859295501.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/16076ed0f1a449---gonawivimukikifanuzavi.pdf
- http://yuhenganquan.com/userfiles/file/20210613114524_1997598135.pdf
- http://curry-box-deluxe.de/userfiles/file/52769605424.pdf
- https://suprizpin.com/calisma2/files/uploads/64255179619.pdf
- https://ecowaytechnologies.com/ckfinder/userfiles/files/renudozat.pdf
- http://amandatour.ru/js/ckfinder/userfiles/files/67640822279.pdf
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b8b3fb2f20---47949219958.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=state+record+bowfin
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010dd5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DD5 | 16792 bytes |
font_01_sfnt_off000125ec.binedfbe35891a2dc2ec43b8f34a75f7ffb28c6e2552ac45277f1dd62c83971d489 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125EC | 10556 bytes |
font_02_sfnt_off00013e26.bin528070a091435c5c12a8a9c9db49a1ae1293e2cc092bc4aa76930337d84e81a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E26 | 17508 bytes |
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