MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised websites and disposable hosting, likely for phishing or malware distribution. The presence of numerous unknown URLs further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609b79ad99237---zowuluzupaliru.pdf In PDF document text
- http://chukysovin.com/img-svc/files/kukuzupapuzadogafokesesuz.pdfIn PDF document text
- http://royalgoodviewresort.com/Uploads/file/39343774337.pdfIn PDF document text
- http://amctop.com/board_data/editor_img/file/202105241838.pdfIn PDF document text
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/5c18c88e0bfaee6511e5e36d85d538bf/55286722622.pdfIn PDF document text
- http://www.houstonorientalrug.com/ckfinder/userfiles/files/33009773263.pdfIn PDF document text
- http://skncn.com/u/files/soxaze.pdfIn PDF document text
- http://everest-c.ru/ckfinder/userfiles/files/94044874741.pdfIn PDF document text
- http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/abb3bb07ab090394307000534b60903f/90040277259.pdfIn PDF document text
- https://otelnamore.com/wp-content/plugins/super-forms/uploads/php/files/1c4b2e2c0839f2cc34cc640c78a9f328/kugudan.pdfIn PDF document text
- https://fruzsiflame.hu/userfiles/file/21192783783.pdfIn PDF document text
- http://toyotarent.kr/FileData/ckfinder/files/20210528_9F4969926A145874.pdfIn PDF document text
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076bb18deb9b---75282196900.pdfIn PDF document text
- http://dunajecbiala.pl/upload/File/89977412210.pdfIn PDF document text
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083ed3beb068---vamiwabatipurare.pdfIn PDF document text
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/qp69k01vq2iiko033pl1b42jb6/kowumububugaboteludul.pdfIn PDF document text
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160a4ecff81559---milotenewemananim.pdfIn PDF document text
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e31eef01a---2669926707.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=rule+113+section+5PDF link annotation
- 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_off0000fe34.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE34 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001164b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1164B | 10464 bytes |
SHA-256: 039f4241d4a57e40368909520e12439bb667c6737e957239ed483c5258887962 |
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font_02_sfnt_off00012e3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E3C | 17216 bytes |
SHA-256: 04ac988eab4d2ee872dd7035ca980c5a977dfd50c293ccf3eaf4a7f480831a98 |
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