MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with numerous embedded URLs pointing to various domains, many of which are hosted on compromised CMS platforms or disposable hosting. The ML_NYX_PDF_MALICIOUS heuristic with a score of 0.997115 strongly supports the malicious classification. The primary attack pattern involves redirecting users through these links, potentially leading to phishing sites or further malware downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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 http://zartmobilia.com/userfiles/file/20210909074632.pdf In PDF document text
- http://jlm-kg.com/uploads/file/73839263949.pdfIn PDF document text
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16136ab4ca5b40---3840554161.pdfIn PDF document text
- https://kingwaterpure.com/ckfinder/userfiles/files/67163249229.pdfIn PDF document text
- http://www.rpv-drachten.nl/files/file/50713440432.pdfIn PDF document text
- https://noticky.net/akce/fotky/file/buporikewarak.pdfIn PDF document text
- https://essuances.com/ckfinder/userfiles/files/2629905855.pdfIn PDF document text
- http://danchrisjewelry.com/userfiles/file/81413193241.pdfIn PDF document text
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/8qo4feor9m8j6as616b00hju41/6774314374.pdfIn PDF document text
- http://wskinbody.com/data/boardData/files/gifojuderezajowekenajubok.pdfIn PDF document text
- https://kidneystonetreatment.in/userfiles/files/22497013241.pdfIn PDF document text
- http://www.moyekolodin.com/files/lujipef.pdfIn PDF document text
- https://pinkrali.com/calisma2/files/uploads/vulugamuxu.pdfIn PDF document text
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/bbdc358dc7e722530a88d1250ec76880/kulejokopumikikejane.pdfIn PDF document text
- http://vinhhangvien.com/upload/files/33816416423.pdfIn PDF document text
- https://andhimazhai.com/images/files/95461436703.pdfIn PDF document text
- http://mexxeopaint.com/upload/files/videsosuwu.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/nfa686vmshq3a1mn4ahls0gif5/26406993774.pdfIn PDF document text
- http://hoteldanang.vn/uploads/images/files/kusolekofar.pdfIn PDF document text
- http://bioident.pl/photos_fck/file/varipagarijokuzugorapo.pdfIn PDF document text
- http://studiolegalezullo.eu/userfiles/files/93174963693.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=demon+slayer+train+movie+freePDF 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_off0000ba68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA68 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d27a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD27A | 17744 bytes |
SHA-256: beec84fda62d9dc3ac74dcd864fbf9cc3ecfbefdd07f2b8ca203b37e6dae228b |
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font_02_sfnt_off0001000f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1000F | 10556 bytes |
SHA-256: 8ac95f0967b38eec23c564673f974d90261a8c5e06cd5d7733c59f5215c39f5b |
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