MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://ros.by/ckfinder/userfiles/files/napivizaxomenug.pdf In PDF document text
- https://harom.ro/files/file/femekoduvup.pdfIn PDF document text
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137d47501d0f---kajaki.pdfIn PDF document text
- http://dragonera.cn/admin/userfiles/file/vodudawabopebiwulezisokil.pdfIn PDF document text
- https://easypayindia.in/userfiles/file/238569934.pdfIn PDF document text
- https://pepinieramontana.ro/ckfinder/userfiles/files/rusekuga.pdfIn PDF document text
- https://sindhuinvestment.com/ckfinder/userfiles/files/xozirutawugijakiwi.pdfIn PDF document text
- https://duocvinhkim.com/userfiles/file/kipojemej.pdfIn PDF document text
- https://rux-thai.com/ckfinder/userfiles/files/5298052639.pdfIn PDF document text
- https://balbok.net/admin/ckfinder/userfiles/files/30513251061.pdfIn PDF document text
- https://doluhosting.com/calisma2/files/uploads/lukidezajiwekorugudisof.pdfIn PDF document text
- https://avukat.dnsaktif.net/upload/files/14677106498.pdfIn PDF document text
- http://kimhoatra.com/upload/fckimagesfile/mejitakomasijogobobexige.pdfIn PDF document text
- https://arabadvertise.com/userfiles/files/nunaj.pdfIn PDF document text
- http://donghotam.com/luutru/files/rufojunevixifipudizapu.pdfIn PDF document text
- http://keemunblacktea.cn/uploads/file/050929168123.pdfIn PDF document text
- http://hosungtour.com/FileData/ckfinder/files/20210902_30DC3FA5EE4F3D89.pdfIn PDF document text
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16132cd78248ae---6774695203.pdfIn PDF document text
- http://chronocertif.com/userfiles/file/44315212208.pdfIn PDF document text
- http://helenhotel.vn/upload/files/43874957992.pdfIn PDF document text
- http://fitsiluet.cz/data/file/niwumaxugafarobumexilek.pdfIn PDF document text
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/loiv9qrneh8h64em2pomrb48jj/30722164189.pdfIn PDF document text
- http://fields-on-earth.com/images/blog/file/75090914700.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=can+linux+and+windows+be+installed+on+the+same+computerPDF 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_off0000dcaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCAA | 11236 bytes |
SHA-256: 3ea65470fc3cad23c8b3230e203e1cbbdd8bc2046ada61b4b99b6251f1f71bd3 |
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font_01_sfnt_off0000f6b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6B0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010ec2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EC2 | 17032 bytes |
SHA-256: f55b53e592c7b68e2e16358ae4af47fe119339381773b5f5c22d51afab32bc88 |
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