MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress upload storage and other disposable hosting, forming a link farm designed to redirect users to malicious content. The presence of urgency and download button lures further supports a phishing or malicious download attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 8
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://supair-lux.hu/ckfinder/userfiles/files/98532116545.pdf
- http://aliglobshop.com/userfiles/file/tekavitumisuke.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d104b2af71---zaxusadasowidilidam.pdf
- https://adepotcustom.com/UploadFiles/file/20210501032614176.pdf
- http://jevades.com/aircraft/fckimages/file/23763987954.pdf
- https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb540b27c38---25448209233.pdf
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acce72703be---ketewu.pdf
- https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b6eaef8f1ac---49450161454.pdf
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/7a9b291805b4873e72a118e84449ee7a/makawoterufe.pdf
- http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/4ddfcb53ead3ef5da0a4488ff5c684d3/14123321240.pdf
- https://dovolena-jiznicechy.cz/uploads/nubedotupi.pdf
- http://aftckwt.com/uploads/file/95111441731.pdf
- https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/2soqem5232i8frik5grkgie683/kesovepat.pdf
- https://travelinnsuites.com/nbloom/fckuploads/file/wilujumo.pdf
- http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160afcd6cdb4ab---4715364811.pdf
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/20e5d5b9428eb46ba417a7ec2bb315a0/lusirikikewibepowirutis.pdf
- https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/36bec79695499ca2639735801bc18b19/ferinamitigavusivulanus.pdf
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609f565695a40---53061846163.pdf
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ecd8c82243---87495685510.pdf
- http://haozuowenwang.com/imagefiles/file/43592887351.pdf
- https://menlopark.com/wysiwygfiles/file/pababedosifuxajikajokafad.pdf
- https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/6fpndmhccta95qs9v500fqnidi/7029233274.pdf
- http://orderkiwicafe.com/uploads/files/dasukogomevade.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=m+management+3rd+edition
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ca88.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA88 | 16792 bytes |
font_01_sfnt_off0000e29a.bin5a84f94126271c079f148edddfa9f845c21e5e8bd85713cffb164620e9030d40 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE29A | 17332 bytes |
font_02_sfnt_off00010f43.bin0acba94a5f2826a359ea6f16a26d54553c3c250a7bc5d9f061cf6db7931af0d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F43 | 10544 bytes |
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