MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external links, many pointing to compromised or disposable hosting. This indicates the file is likely part of a phishing or spam campaign designed to redirect users to malicious sites. The embedded JavaScript may be used to further obfuscate the malicious intent or initiate further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://wastran.ru/uplcv?utm_term=the+three+little+pigs+james+marshall+pdf
- http://ipsaix.com/ckeditor/ckfinder/userfiles/files/53177989459.pdf
- https://ctsgroups.asia/images/file/13092615460.pdf
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/7b27a4a2f70b096e9a6fd1a756fbdbd9/24651860841.pdf
- https://china-glass-mosaic.com/userfiles/files/20210917_100818.pdf
- http://www.satunatc.ac.th/ckfinder/userfiles/files/12022873774.pdf
- http://actinq.nl/upload/file/potonurasetu.pdf
- https://mygrind.ie/userfiles/file/wumomasetunaxogap.pdf
- http://archi-m.ru/userfiles/file/wuzoxefejagapuk.pdf
- https://prestinireedcorp.com/userfiles/files/nefulenezusogisebewomo.pdf
- http://addon-colsman.somantec.net/ckfinder/userfiles/files/26794787462.pdf
- http://kdekdyjak.cz/data/2073616284.pdf
- http://benthanhsgfarm.com/images/uploads/files/wuxefutabupanixaxolip.pdf
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614a2317379e7---90299369209.pdf
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614cfd4fa764e---fesulugomadoxe.pdf
- https://elpollopaulino.com/cenavarra_userfiles/files/jazibawapamef.pdf
- https://mdteam.se/ckfinder/userfiles/files/86772573053.pdf
- https://linlinline.biz/js/ckfinder/userfiles/files/4106857952.pdf
- https://webmanagement.colortown.ro/images/file/39588520214.pdf
- http://mobiliteit.nu/files/9019337617.pdf
- http://eviljoy.com/UserFiles/File/83476415841.pdf
- http://flashdisplay.net/UploadFiles/FCKeditor/20210904011244.pdf
- http://nedirajtebosnu.net/userfiles/file/doranozuwujometufotara.pdf
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd34caece6---23498490618.pdf
- http://www.companyforte.com/imagenes/editor/file/81943802896.pdf
- http://onlinetalk.jp/app/webroot/img/fckfiles/file/7801333132.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_off0000b3b2.bin62f292f984aaca781c0d48b3738089267e4960ae59856d9e959b047aaed3e23c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3B2 | 15016 bytes |
font_01_sfnt_off0000d944.binb71c007f7164f4c76bf3a96dac2936554fa0a514770aa58050326cfc788665ea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD944 | 10812 bytes |
font_02_sfnt_off0000f1ef.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1EF | 16792 bytes |
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