MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or are part of a link farm designed to obscure the final destination. Heuristics indicate this is a phishing or malicious PDF, and ClamAV detection confirms its malicious nature. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, lacking clear user-facing content but containing structural elements suggestive of a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 7
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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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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 https://vico-domrep.com/ckfinder/userfiles/files/ruzubelumazemidiwelo.pdf In PDF document text
- http://bytip.net/filespath/files/20210920055536.pdfIn PDF document text
- http://mkpstroitel.ru/upload/files/pupuk.pdfIn PDF document text
- https://www.idd.no/ckfinder/userfiles/files/rilujakufoteturaguzaxipa.pdfIn PDF document text
- http://hebammenglueck.de/ckfinder/userfiles/files/47239918366.pdfIn PDF document text
- http://macautemple.com/userfiles/file/sobajulomidifazuw.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16146026b67256---lifaxebixixen.pdfIn PDF document text
- https://hawkseyetravels.com/assets/ckfinder/userfiles/files/zizaligobaduda.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16147dd4926642---tirifuvefipoloxukelid.pdfIn PDF document text
- https://abisspaandboutique.com/nbloom/fckuploads/file/silowuforubirolubopizoj.pdfIn PDF document text
- https://ardiinerkh.mn/uploads/userfiles/files/refuni.pdfIn PDF document text
- http://marcus-1.com/FileData/ckfinder/files/20210915_BD142EE84AB73CE8.pdfIn PDF document text
- http://veganogle.es/uploads/ckfinder/files/lifig.pdfIn PDF document text
- http://dallapietamarchisio.it/userfiles/files/48147137644.pdfIn PDF document text
- http://krcatikyonetimi.com/userfiles/file/faviwitepoxakawubabomir.pdfIn PDF document text
- http://unsersohn.ch/images/file/ruluzigosapuwoguwimiwa.pdfIn PDF document text
- https://coolingrealestate.com/your-home-cleaner/FCKuploads/file/wokuzolefulefajes.pdfIn PDF document text
- https://supermovi.com/userfiles/files/ravoforavelizuvaxuwowubak.pdfIn PDF document text
- http://sictombbi.fr/ckfinder/userfiles/files/11495425920.pdfIn PDF document text
- https://ecableapp.com/FCKeditor/FCKimgUpload/file/45755562470.pdfIn PDF document text
- https://thefertilizergranulators.com/d/files/79212909851.pdfIn PDF document text
- https://vnycc.com/userfiles/file/wokunibogusogabelenelozir.pdfIn PDF document text
- http://ateliergermain.net/sites/default/files/file/nubofokalur.pdfIn PDF document text
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142169de6714---94033829009.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=vip+old+tamil+movie+watch+onlinePDF 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_off0000db53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB53 | 18088 bytes |
SHA-256: 253e20c4b8568395feec22516aec1af0a9c2ef0b6fa447cdf3e79b4bc4cb101a |
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font_01_sfnt_off00010a31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A31 | 10632 bytes |
SHA-256: e9202e4f4c2b415dd085ee3d840bf318159e4d3bb17b63a75f98d00be5a5d27a |
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font_02_sfnt_off00012258.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12258 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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