MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs, many of which are part of a link farm hosted on compromised or disposable domains. The presence of embedded JavaScript and a high ML classifier score, along with ClamAV detection as Pdf.Phishing.Trojan, strongly suggests a malicious intent. The primary goal appears to be redirecting users through these links, likely to phishing pages or to download further malicious content.
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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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 https://crewmak.ru/uplcv?utm_term=wipe+data+android+tablet
- http://ddaengshop.com/ckupload/files/jaxonipalawesawikipaxel.pdf
- http://www.miwon.com.vn/app/webroot/uploads/files/zisetogi.pdf
- http://brunagabriele.it/userfiles/files/67866237882.pdf
- https://oriental-kitchens.com/userfiles/files/fupabataxotudaz.pdf
- http://sz-frp.com/pic/20210926055809146.pdf
- https://unique-u.biz/images/uploads/file/70065906849.pdf
- https://weborder.cloud/userfiles/file///budabojez.pdf
- https://detmers-kontejner.hr/files/kamiwanipimisedanudob.pdf
- http://falconartistmanagement.com/ckfinder/userfiles/files/60894571082.pdf
- http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/16132c88ab704d---13373951743.pdf
- http://www.multigacos.com/admin/uploaded/fck/file/89250252518.pdf
- http://aiaato.com/FileData/ckfinder/files/20210919_6E75506A7318ADA5.pdf
- http://epoch-making.jp/js/upload/files/46219929295.pdf
- https://kimtuong.vn/isc/public/files/fckupload/file/47330031374.pdf
- https://www.gpaci.org.br/cms/ckfinder/userfiles/files/10139351245.pdf
- http://jadeite.ru/images/file/34514879890.pdf
- http://rent2day.ca/ci2/userfiles/files/vidatubotokivamaroto.pdf
- https://korzo-galeria.hu/files/file/11417308146.pdf
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/16143a74ab6efa---lumubogufuwiganupow.pdf
- http://ghinelliarchitettura.it/userfiles/files/buretobavoniwijoworinob.pdf
- https://sesconbs.org.br/ckfinder/userfiles/files/98111780676.pdf
- http://sdes.in/uploads/junukibat.pdf
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614046c43c415---pafosejepurerilutokoman.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b16e.bine8b826e923cb0fd0deef087a79695d0d1127ef9e16dc268bf4e303d7ca2383f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB16E | 10352 bytes |
font_01_sfnt_off0000c8ae.bin9283bacd88e0d79f179eea16b931ca10412512513d295276f27a3a5c2cebf35f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8AE | 16220 bytes |
font_02_sfnt_off0000f1ec.bin8ad1629d78958631526aea0a74d0b163a5252944052d54f78beed5240939c1a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1EC | 2132 bytes |
font_03_sfnt_off0000fb93.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB93 | 16792 bytes |
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