MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier returned a high probability of maliciousness. Numerous URLs were extracted, many pointing to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The PDF structure itself appears to be a link farm, with many distinct hosts and URLs embedded.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://drafthe.ru/uplcv?utm_term=how+to+clear+unused+data+on+android PDF link annotation
- http://wernersuarez.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dujefudesovapusetagum.pdfIn PDF document text
- http://urbanconstructions.org/images/uploadedimages/file/32220114290.pdfIn PDF document text
- https://promptcorporate.com/ckeditor/ckfinder/userfiles/files/88458792161.pdfIn PDF document text
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1613a532c2daa4---jozamasazovoniveni.pdfIn PDF document text
- http://akwarella.pl/user_uploads/file/sivegutoduga.pdfIn PDF document text
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/161392d48c8c48---26495616218.pdfIn PDF document text
- https://clinicamanila.com/ckfinder/userfiles/files/68493404263.pdfIn PDF document text
- http://islaminkiel.de/webmisr/uploadwebmisr/file/musetovesikat.pdfIn PDF document text
- http://arablift.net/userfiles/file/munugakilodorulewodesetu.pdfIn PDF document text
- https://dveropolis.ru/upload_picture/kadelanukijuxajusov.pdfIn PDF document text
- http://hertzlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/74526470243.pdfIn PDF document text
- http://matonaklawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/risikobudaxikofa.pdfIn PDF document text
- http://svarovani-tig.cz/userfiles/file/rixesakew.pdfIn PDF document text
- http://chanhbon.vn/media/ftp/file/5103616511.pdfIn PDF document text
- http://insureavisitor.com/userfiles/file/varodesokuvobudub.pdfIn PDF document text
- http://stainless-faucet.com/uploads/htmlupload/files/2681515796.pdfIn PDF document text
- https://nirkongrp.com/ckfinder/userfiles/files/61310070996.pdfIn PDF document text
- http://consorzio-csa.it/userfiles/files/50071447224.pdfIn PDF document text
- http://cheliabinsk.realxenon.ru/uploads/files/94446883824.pdfIn PDF document text
- http://www.catedralirodahaz.hu/data/editorfile/56581809840.pdfIn PDF document text
- https://novinfasteners.com/userfiles/file/gusam.pdfIn PDF document text
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16137b87e1ea3e---bosomib.pdfIn PDF document text
- http://xn----8sbfeahwarn6ac1adp3fb2p.xn--p1ai/userfiles/file/taduxenojok.pdfIn PDF document text
- http://spc1991.com/ckfinder/userfiles/files/9624371180.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_off0000f100.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF100 | 10540 bytes |
SHA-256: 34b43f9b5540e476a1e8419df6080210aba831750141f8f2ae7fbe57509c1a28 |
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font_01_sfnt_off00010921.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10921 | 17088 bytes |
SHA-256: 8fe57118a272d5876a8b643c136142c54d08df3ba0e7b89cbef717f284519087 |
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font_02_sfnt_off0001355c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1355C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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