MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and links to compromised CMS upload storage suggests the PDF is designed to exploit vulnerabilities or lure users into downloading further malicious content. The embedded JavaScript likely facilitates the download and execution of a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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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://usaoxin.com/userfiles/2021-7/file/rubidaluzejakitemaza.pdf
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9901e0ca29---9019549413.pdf
- http://katachizu.com/img/news/files/67714777706.pdf
- http://oaklandscreche.ie/userfiles/files/julavujidovufoniseru.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa07477965---piwetijugubuz.pdf
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/85f01f486672a049d01beadb840b2cb4/23528455577.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ad063a01684---71455468774.pdf
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c5e2b80b829---wojudedageketatoga.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160aaea3d46032---valavofonexopodan.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160733a5d64362---75168219498.pdf
- https://demircanticaret.com/userfiles/file/96073359028.pdf
- http://teplolux72.ru/upload/file/zivefeloduzarug.pdf
- http://954move.com/clients/4890/File/55524031813.pdf
- http://rahwayhigh.com/clients/42761/File/timevobelo.pdf
- https://lifesmart.ro/ckfinder/userfiles/files/48697472290.pdf
- http://anhuizpyy.com/upload_fck/file/2021-4-29/20210429204636910985.pdf
- https://teenvolunteerhouston.com/wp-content/plugins/super-forms/uploads/php/files/60b4542f8fefb43aa0458b9dcb6b7cc8/53870386378.pdf
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a61a2ccda70---6160144681.pdf
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eeb8cb3159---vufofedaka.pdf
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/a84acade84eeb35abb9146afba72cb4b/32437282157.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a76296cdbb9---75645279362.pdf
- http://allamericannursing.com/userfiles/file/xososivagorejogiwexeram.pdf
- https://www.dartmusicfestival.co.uk/wp-content/plugins/super-forms/uploads/php/files/85b323b5c28df72b8e1cb679c592815e/33548262845.pdf
- https://sfasg.jp/js/ckfinder/userfiles/files/sakenegigenuduxo.pdf
- http://cdkkck.com/uploadfile/file/20210610195245.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=words+that+have+ough
- 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_off0000bf33.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF33 | 16792 bytes |
font_01_sfnt_off0000d74a.bin13f62bc3a983bd2674c1952decd6d32955af48aeb23ed0e0ceaee2c58a1e9bc0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD74A | 10444 bytes |
font_02_sfnt_off0000eef2.bin5b47ab60c79ad00faf25907d8b41cc0e00907463ce2b605c43ede086ec79c686 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEF2 | 16364 bytes |
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