MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for redirecting users to malicious sites. Several heuristics indicate the PDF is part of a link farm hosted on potentially compromised or disposable domains, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://tz5168.com/uploadfile/image/2021/05/16/file/20210516_172131_145.pdf
- http://purpledoorchurch.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085ee73994e0---96605938556.pdf
- http://careerpathrecruitment.com/swapscan/app/webroot/js/ckfinder/userfiles/files/84156680866.pdf
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e89b4d41f---vibapilum.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160953d40e3ae7---64399291751.pdf
- http://loscogliodifavignana.it/userfiles/files/7793440904.pdf
- http://vasset.bg/userfiles/file/60253444817.pdf
- http://veiligheidsslot.nl/ckfinder/userfiles/files/416325977.pdf
- https://equinox-e.com/upload/UserFiles/file/bujewenenisuni.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b61da63a544---54257096953.pdf
- https://pui-vital.ro/msg_media/file/43781118906.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1607dc356e3560---bepuvokuzemomavivifam.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a7e022eec36---rowibujajinenulumaw.pdf
- http://mt-filtration.com/uploaded/file/211995882660d1faf6536b8.pdf
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16076948c36784---nunomesesapedimariv.pdf
- http://sourceit.ke/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/18847298712.pdf
- https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/xiwavuxijuzipugedovu.pdf
- https://www.sudburyhighspeedinternet.ca/wp-content/plugins/super-forms/uploads/php/files/abf84b9d006c82d120b49873937d90ff/48895845341.pdf
- http://naasschoolofmotoring.ie/fckeditor/userfiles/file/lodobonezenexo.pdf
- http://szpk.hu/_user/file/xiveniwogakevator.pdf
- https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/ca29617614e1e40d980a59d29fdbd2bb/telamixulafevuwedilajaza.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=multiclamp+700b+commander+manual
- 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_off0000ceb8.bine9402a12f9e2c23d4d98aa90f2d40ba07481b804514a76ec805b41159a19b38f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEB8 | 10912 bytes |
font_01_sfnt_off0000e7be.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7BE | 16792 bytes |
font_02_sfnt_off0000ffd0.bincdc4eeb813890c16dabbf663684231836e7ac75428e9c287536ac7a7b7d79522 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFD0 | 17828 bytes |
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