MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous links to external URLs, many of which point to compromised CMS uploads or disposable hosting, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. The embedded JavaScript likely facilitates the redirection or download of a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://valentine.tutaylamhet.com/storage/ckfinder/files/7613171934.pdf
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/161396bbde72d7---barojarajix.pdf
- http://careerpathrecruitment.com/swapscan/app/webroot/js/ckfinder/userfiles/files/10864753479.pdf
- http://atut-biuro.com/uploaded/file/gozelako.pdf
- http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/161401bef46219---98609399471.pdf
- http://alessandrobelleseveterinario.eu/userfiles/files/wuwefimuponupuwokaros.pdf
- http://lagerunda.it/public/upload/file/zipinamexafizewifuf.pdf
- https://clifestyle.net/uploades/userfiles/file/18994681444.pdf
- http://mylodge-naoshima.com/images/blog/file/65919280205.pdf
- https://herfection.herfection.tw/upload/ckfinder_temp/files/20210914130004.pdf
- https://internationallanguagenavigators.com/media/43301260770.pdf
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613c11d911966---bewarogizamomuzakavarum.pdf
- http://banhangcongnghe.com/upload/FCK/file/68007474404.pdf
- http://srtcivilnorth.com/ckeditor_file/files/nuzuvadufezugokin.pdf
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/qo5kdpqs3376p9oassn4a1cg6r/petituvuzuwewir.pdf
- https://reparationmobile.net/userfiles/file/85479477274.pdf
- http://idealthailand.com/file_media/file_image/file/kefebajerizefizelirigojo.pdf
- http://tech-in.info/bramy/userfiles/file/rutamojabomitivuwan.pdf
- http://dmhu.eu/uploads/uplib/file/44348316641.pdf
- http://danangsculpture.com/uploads/image/files/47715029301.pdf
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16139f64530c5b---9613799606.pdf
- http://syntrend.critical.tw/upload/files/giwesa.pdf
- http://mikomisushiwc.com/uploads/files/15170021485.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=can+you+share+location+from+apple+to+android
- https://cakamuzejs.riga.lv/ckfinder/userfiles/files/zevavex.pdf
- 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_off0000b50f.bin682a16a26c22d290b1243e89f72e442d160b5fbccc63fc4a985a2a622f8cd38d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB50F | 11132 bytes |
font_01_sfnt_off0000cee3.bin4df91ff8d61254195c496baafaecfb9f3abdff95c8b2f5b675a5501d73082b27 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEE3 | 15364 bytes |
font_02_sfnt_off0000f5d6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5D6 | 16792 bytes |
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