MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file contains embedded JavaScript and numerous external links, many pointing to potentially compromised or disposable hosting. The heuristic 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggest a malicious intent to redirect users to harmful content. The ML classifier and ClamAV detection further confirm its malicious nature, likely as a phishing or redirection lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://www.kotolantopeni.cz/files/3008290575.pdf
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/1etu06ogai5n3cc3ivaukkd8nb/dupikereb.pdf
- http://wskinbody.com/data/boardData/files/vajirumupelaz.pdf
- https://bamfieldrental.com/userfiles/file/82530311575.pdf
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/d25b178565ba0876936d2e4fde489178/29512358573.pdf
- http://dmkert.hu/files/file/guwoki.pdf
- http://we2meeting.com/ckfinder/userfiles/publics/files/sukajuvifuvufogoxe.pdf
- http://caycanhtuyhien.com/uploads/image/files/lawibip.pdf
- http://world-housing.jp/ckfinder/userfiles/files/45350143297.pdf
- http://studiotecnicodama.it/userfiles/files/wakevujudapebeje.pdf
- https://bestcoloringpages.com/userfiles/file/10533923538.pdf
- http://canshu.dlzj.net/upload/files/20210921113818575704.pdf
- http://akiyastyle.com/app/webroot/js/ckfinder/userfiles/files/78896620506.pdf
- https://gifarlcm.com/upfiles/editor/files/80158531967.pdf
- https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/161370657d301d---tiwoxowepawo.pdf
- https://helices-evra.com/userfiles/file/21542106688.pdf
- http://hidrometa.com/images_upload/files/31083381282.pdf
- http://www.shjkyq.com/up_files/FCK/file/vitigarurinepatevona.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613db0272127b---piguxutewoduwotiwurarodo.pdf
- http://sydjpg.com/images/upload/file/20210913_192137_147.pdf
- https://sergeca.com.ve/ckfinder/userfiles/files/wapuzidibefajejedeziguf.pdf
- https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/981dc972ee4ae4b64f24704c057ee69c/depivegavunones.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=how+to+install+window+on+android+tablet
- 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_off0000cbab.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBAB | 16792 bytes |
font_01_sfnt_off0000e3bd.bin001cceeae043a021b35cca98521eca3c5d69610861241e4c4cc791df4a392b8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3BD | 17876 bytes |
font_02_sfnt_off000111cc.binf6b318b80936492d527ec3fcc2975afca1d4cb8f356b41b76fe50486315cd563 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111CC | 10456 bytes |
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