MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF that contains numerous links to compromised websites, many of which host other PDF files. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics indicate a pattern of using compromised infrastructure to host and distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9924
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://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086aed14f208---37874460018.pdf
- http://ajtoablakcentrum.com/_user/file/wivedule.pdf
- http://feast.to/upd_file/debukoresukalaboxiderag.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160841e37ee104---vipemagozajanifozo.pdf
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/c0d13b071f989c6611646bf37f5c72c1/59895963199.pdf
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160881ebf4c107---numexefopukuvazumefuj.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607208d8896c0---lemeverosazetaramutixese.pdf
- https://bettyloupaints.com/userfiles/files/36322674424.pdf
- https://iqmuseum.mn/uploads/files/lanidilosinewefaka.pdf
- http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/1609009e295e6d---tatelipenijepezifaxifiz.pdf
- http://alexandercdg.com/clients/36029/File/56525536472.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e4d9ed5969---82264826122.pdf
- http://thedreams.cz/files/wonitipaginonudaxomuj.pdf
- https://steklo-shik.ru/userfiles/file/dewixog.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/a435dd8d0fdf1e4d800df9d04e7d1a09/39808430735.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9f9d6aba14---54917572621.pdf
- http://staceyasp.com/UserFiles/file/37449794094.pdf
- http://younewstoday.com/task/userimages/file/70887821960.pdf
- http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/160ab7656919dc---kujufaxobudakedu.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2ad9479c9e---tisutabesepolufedagog.pdf
- https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/nieqe9e0o7u505q0mst0rivf4d/pupotibudokaguxukuraze.pdf
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607124febc94a---94934749795.pdf
- https://patc.fr/imagesfile/38722937830.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aa3679ab31c---mefekevifiruvig.pdf
- http://www.cenlajobinator.com/siteuploads/editorimg/file/26048136009.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=treatment+of+anthrax+disease
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e964.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE964 | 16792 bytes |
font_01_sfnt_off00010175.bin5e4c00560aa92e58ed7893f1d29e19bab1551ecfc1a2d4366013d39ff1dff337 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10175 | 16092 bytes |
font_02_sfnt_off000116ae.bin73a616eba6a0fb05e79919eb4435315811c4326d046f9bbfb05c37aa56461c49 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116AE | 16984 bytes |
font_03_sfnt_off00014390.bin576e8651d4922c87c4d6d63ce15feee4de9458cb49778ad8fe8b0ff94a92adbe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14390 | 10640 bytes |
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