MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The heuristics indicate the document functions as a link farm, directing users to multiple compromised or disposable hosting sites. The presence of numerous external URIs, many hosted on potentially compromised WordPress installations or disposable domains, strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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 https://laborke.ru/uplcv?utm_term=cuentos+cortos+para+ni%C3%B1os+de+tercer+grado+pdf PDF link annotation
- http://birnagarcollege.in/userfiles/file/62596886345.pdfIn PDF document text
- https://investmentskillsgroup.com/images/userfiles/file/wuvosidumoxowi.pdfIn PDF document text
- http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/1608219a331a69---pirikirotozi.pdfIn PDF document text
- http://birnagarcollege.in/userfiles/file/dajezan.pdfIn PDF document text
- http://somsit.com/ckfinder/userfiles/files/67940937391.pdfIn PDF document text
- http://adbrf.com/files/fckeditor/file/67147035261110a855034b.pdfIn PDF document text
- http://jhsclassof63.com/clients/c/c8/c8cc7cee7579ddcd469b669c0eb172d8/File/sutazowemixebaviwuxis.pdfIn PDF document text
- http://architettotamborra.eu/userfiles/files/60787788062.pdfIn PDF document text
- http://zhatuogz.com/uploadfile/file/38589872955.pdfIn PDF document text
- http://suttonoakfarms.com/clients/880813/File/8075352082.pdfIn PDF document text
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/7d143f36690da744c76ab5f5074bc6a0/motudosis.pdfIn PDF document text
- http://vdtonline.vn/static/uploads/editor/files/porojox.pdfIn PDF document text
- http://ddaengshop.com/ckupload/files/63693944654.pdfIn PDF document text
- http://aftckwt.com/uploads/file/5375944338.pdfIn PDF document text
- http://hodinovysoused.cz/upload/file/19848127063.pdfIn PDF document text
- http://haisushitogo.com/uploads/files/40130507394.pdfIn PDF document text
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/1f44df0ebad1f8788233ef32f2195e77/69862886941.pdfIn PDF document text
- https://gonguyenkhoi.vn/upload/files/14675711197.pdfIn PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/bhmegim8r120365p45dd7emukl/jazekobulifabipogulunid.pdfIn PDF document text
- https://abugfreemind.com/userfiles/file/modud.pdfIn PDF document text
- http://supermarketdv.ru/files/file/pifanukagokewub.pdfIn PDF document text
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/648aaf56949f6e8eb49865a76047f348/naxab.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_off0000d736.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD736 | 11088 bytes |
SHA-256: 8b6ffb21cc070e56389e9be33e01a6e802cfdebe43bd1e3f3313bf3a746a5606 |
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font_01_sfnt_off0000f0c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C8 | 17900 bytes |
SHA-256: 1c152b6ba4a668ea18e69b656dca7e235ab96f4aae1b0210bf97df92d5075deb |
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font_02_sfnt_off00011df9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DF9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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