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 point to compromised CMS uploads or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the redirection to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://pistant.ru/uplcv?utm_term=multiplying+and+dividing+multiples+of+10+worksheet PDF link annotation
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/cc9f1735eaebfde89ec28534fce47486/moninirofaxujewaxosape.pdfIn PDF document text
- http://hitplus.eu/userfiles/file/nelaselivoposijak.pdfIn PDF document text
- https://www.colline-eternelle.com/ckfinder/userfiles/files/43318350970.pdfIn PDF document text
- http://phuocthuan.vn/images/pic/file/gatiwe.pdfIn PDF document text
- http://koala-al.com/d/files/navamutanaworapipuse.pdfIn PDF document text
- http://frigotechreina.com/userfiles/files/sizalarukif.pdfIn PDF document text
- http://baocaosuhoatoc.com/luutru/files/digafadabezulamo.pdfIn PDF document text
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff46aac016---megoduzonolefomotufupipir.pdfIn PDF document text
- https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/e1b25te28tefg8uagfga56np6m/bunesewifidep.pdfIn PDF document text
- https://247christianity.org/fckeditor/userfiles/file/zimed1620788132.pdfIn PDF document text
- https://aiaciran.org/cache/fck_files/file/sixuwupet.pdfIn PDF document text
- https://estudiowebcolombia.com/ckfinder/userfiles/files/51129634281.pdfIn PDF document text
- http://www.perchegouet.com/ckfinder/userfiles/files/60228622074.pdfIn PDF document text
- http://velkoobchod-man.eu/ckfinder/userfiles/files/92572983410.pdfIn PDF document text
- https://soyana.de/js/ckfinder/userfiles/files/ramozananekabasu.pdfIn PDF document text
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160771de8d2241---xezasofexuwuvufamedol.pdfIn PDF document text
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/d3f45bac260f094658d1bdbff8d6f14d/78049311086.pdfIn PDF document text
- http://jungam21.com/upfiles/file/1628278964.pdfIn PDF document text
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/048f46e8833d28cea1af430db13c6c23/42772643164.pdfIn PDF document text
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/a01e82210624d94dccf4ab319aca4968/68868321079.pdfIn PDF document text
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/48dba4ef2dd36a0029f7594c7f3c0d46/40627470073.pdfIn PDF document text
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/efa200e93de7beb6433acc45cf43a18b/68642191176.pdfIn PDF document text
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/c887d453d16c3d76ab2631600289c700/5493426670.pdfIn PDF document text
- 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_off0000dc31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC31 | 17720 bytes |
SHA-256: 3ff7c061490bc38ff7d083024db598468ccafaa0fda1102d29e8a2dc57824633 |
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font_01_sfnt_off00010a61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A61 | 11568 bytes |
SHA-256: 42293485d51d9f99bd55adf4a0426e7e404e0d2f1f2232a9720d7efc5d5d639b |
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font_02_sfnt_off00012590.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12590 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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