MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. The file contains numerous embedded URLs pointing to compromised websites and link farms, suggesting a phishing or scam campaign. The presence of external URI links and link farm indicators strongly suggests the intent is to redirect the user to malicious or deceptive content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://medvor.ru/uplcv?utm_term=clickmate+auto+clicker PDF link annotation
- http://vector-luczak.pl/new/fck_user_files/file/19592227816.pdfIn PDF document text
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/d46e9dd6e7c7b50a9231d96bf4ed80e1/33042792337.pdfIn PDF document text
- http://a-aqua.fr/ressource/site-image/files/39295013622.pdfIn PDF document text
- https://ce-mi.pl/uploads/userfiles/files/jumugegufifow.pdfIn PDF document text
- http://fongyoskert.hu/userfiles/files/remewememepetiraba.pdfIn PDF document text
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a07d6954c9---13384898199.pdfIn PDF document text
- http://sk-uralstroy.ru/uploads/files/loxefezufimuzonuwebuzafet.pdfIn PDF document text
- http://www.pavimentosyreformasferlu.es/ckfinder/userfiles/files/97623473100.pdfIn PDF document text
- http://ahxxzx.com/userfiles/202109/file/mowupagatamabojojekefizu.pdfIn PDF document text
- http://elitacasa.it/images/file/66175370570.pdfIn PDF document text
- http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/96692218771.pdfIn PDF document text
- http://fairway.cc/images/blog/file/tivisexutojexixevexabuzoz.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/40746bd5ca9288ae3f7d5c3d9731ed4f/6108666614.pdfIn PDF document text
- https://alicantea.centralcms.cloud/galeria/files/21248022503.pdfIn PDF document text
- https://bititechnika.com/uploads/file/28882089981.pdfIn PDF document text
- http://thaisomboonautopart.com/userfiles/files/72853946512.pdfIn PDF document text
- https://rcvizovice.cz/ckfinder/userfiles/files/wifanadano.pdfIn PDF document text
- http://sangiorgioautoservizi.com/userfiles/files/muvizipuk.pdfIn PDF document text
- http://hadt.vn/upload/files/32699358235.pdfIn PDF document text
- https://hantverksakuten.se/ckfinder/userfiles/files/50876291476.pdfIn PDF document text
- http://wolfpackbasketballacademy.com/content_docs/balowimugikatesiz.pdfIn PDF document text
- http://barudan.hk/UploadFile/file/20210904121212097.pdfIn PDF document text
- http://anhuishangbiao.com/upload_fck/file/2021-9-5/20210905025850400520.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_off0000c906.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC906 | 10344 bytes |
SHA-256: deb7d3a1a5400d8795c82d40dff6be820d060f0995f2e1a10d97439c9c2d7e5b |
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font_01_sfnt_off0000e066.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE066 | 17872 bytes |
SHA-256: a181b1b1d263801a38688d3524830bad835d936ea4a27972c4982acd7fb03a73 |
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font_02_sfnt_off00010ed9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ED9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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