MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress installations used for hosting further PDF files. The presence of a link farm suggests an attempt to lure users to external sites, likely for credential harvesting or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://infrive.ru/uplcv?utm_term=a5+brochure+template+indesign PDF link annotation
- https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/fbe7aa943801f817bec9d52ba8999760/zinuzu.pdfIn PDF document text
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8ba364afd5---pazabesunelanumus.pdfIn PDF document text
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4c43202f8---nenosafuratizaf.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/7070936ffa9d8be09a4cdd1f7e15df0d/65848057921.pdfIn PDF document text
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/fe8ef0ccc2bb5614fba949ddd6398764/lejokipesasowexaf.pdfIn PDF document text
- https://n-zvuk.ru/upload/file/12025383610.pdfIn PDF document text
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607c94764d7bd---49882913919.pdfIn PDF document text
- https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16084560f4d648---68821864047.pdfIn PDF document text
- http://beateromer.com/bilder/file/xupavakogabum.pdfIn PDF document text
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/7ad8cc97ce942e9ec82ecbadae9e8666/1165642193.pdfIn PDF document text
- http://bronia.org/userfiles/file/dijugamoromimujomi.pdfIn PDF document text
- http://bulongvungtau.com/media/ftp/file/gifuraxamimume.pdfIn PDF document text
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/18ibsdvvi4fc7jes46v95e2bnq/47592087490.pdfIn PDF document text
- http://www.victoriousintl.com/new/resource/files/9499044467.pdfIn PDF document text
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160a57a78851c5---xegoxapulaj.pdfIn PDF document text
- https://acryl-bg.com/userfiles/file/linawonexuroropu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ec5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC5C | 5740 bytes |
SHA-256: 34ac313649eae5f2be5c05d7c168b4cf35e80e850dbd87a2e5bf8e34638485a1 |
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font_01_sfnt_off0000ffb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFB6 | 22264 bytes |
SHA-256: 9518ae2b0c30a74fc0becb42a4a7d11c89e013d42705e21edce77e2f45d992f7 |
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