MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on compromised CMS uploads or disposable domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://instit.ac/ckfinder/userfiles/files/memerarumelen.pdf In PDF document text
- http://csc-028.com/userfiles/file/20210919114838_iivtu8.pdfIn PDF document text
- http://prunay-en-yvelines.fr/ckfinder/userfiles/files/52007889928.pdfIn PDF document text
- http://www.jobibon.com/admin/userfiles/file/dizelafa.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16153c5ccc4027---sofokagixukigiwotinavib.pdfIn PDF document text
- https://holcom-wd.holcom.vn/webroot/img/files/tiwopoloxaxunoju.pdfIn PDF document text
- http://carszana.com/image/upload/File/jugumigubimepuxatulo.pdfIn PDF document text
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/bcbeb228d389fcce12043fc584d2342f/jejuvozirore.pdfIn PDF document text
- https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/9tod15bc15ci576n16pi1vob8l/xulevipepowoma.pdfIn PDF document text
- https://bnovum.hu/downloads/tuwixelulir.pdfIn PDF document text
- http://aktien-analyse.de/images/File/82656326508.pdfIn PDF document text
- http://kiko168.com/UploadFile/file/20210927131439997.pdfIn PDF document text
- https://acavacecio.it/userfiles/files/zurafonudi.pdfIn PDF document text
- http://theponghop.com/upload/files/88282383990.pdfIn PDF document text
- http://makesrealsense.com/ckfinder/userfiles/files/pixojoj.pdfIn PDF document text
- http://mfcwestenkwartier.nl/beta/userfiles/file/29951025992.pdfIn PDF document text
- http://www.boldino-hotel.com/ckfinder/userfiles/files/91850066250.pdfIn PDF document text
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/2252dfcd0d6978aa59f1a938a983624a/karalatebe.pdfIn PDF document text
- https://rosycaffe.com/file/10151036471.pdfIn PDF document text
- https://leresto-niort.fr/images/userfiles/files/fijuzoxoxegulaxizap.pdfIn PDF document text
- https://birgatour.mn/js/ckfinder/userfiles/files/bivagopeguxuk.pdfIn PDF document text
- https://coverline.ro/userfiles/file/berubotixabuf.pdfIn PDF document text
- http://knipia.com/userfiles/file/79694593048.pdfIn PDF document text
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161342f71ce297---togorososabo.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=sonic+sega+all+stars+racing+transformed+androidPDF 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_off0000b194.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB194 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c9ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9AB | 10892 bytes |
SHA-256: a6b87be994ad0e9a7db636ebd147ea5b1dd98b3bb3065d9881e21ee7a162be77 |
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font_02_sfnt_off0000e2a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2A0 | 16212 bytes |
SHA-256: bc1ed2a90d1e8a8a9e31890c26c723fc1a570ee9dbc7e390dd36e633b9c12606 |
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