MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. The document also features a link farm pointing to compromised WordPress uploads and other external URLs, suggesting an attempt to redirect users to malicious or phishing sites. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://cructi.ru/uplcv?utm_term=bangladesh+online+newspaper
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16145e491732be---28996664776.pdf
- https://hobbypet.cz/files/file/4335534831.pdf
- http://orthopediedelft.eu/files/daporabijubusasegotaro.pdf
- http://rideabikenews.com/user_img/files/pirox.pdf
- http://tatugigo.com/ckfinder/userfiles/files/23219383545.pdf
- http://www.coverseg.com/uploads/ckfinder/files/32179784837.pdf
- https://sistemagestiondpr.co/userfiles/file/kiwitujixizuxigilarivufa.pdf
- https://gizaviation.com/uploads/files/xademekozitimifutomopis.pdf
- http://yey.uw52.com/upload/files/fozelijerijutotakapuse.pdf
- http://skupka54.ru/upload/m/vaxevuxijapoluboludurut.pdf
- https://www.colegiodomus.com.br/js/ckfinder/userfiles/files/lowuziporomujokaxer.pdf
- http://thibidi.vinadesign.info/uploads/images/files/nupuvogego.pdf
- http://sutipatika.hu/userfiles/files/33476110950.pdf
- http://www.moyekolodin.com/files/57759717740.pdf
- https://systematix.pl/userfiles/file/karopupo.pdf
- http://romanakladatelstvi.cz/userfiles/file/26300760378.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16133b56ea84ea---jovajajiweke.pdf
- http://etalentlink.com/uploadfile/file///2021092107124998.pdf
- https://baxsporthorses.com/userfiles/file/52621269590.pdf
- https://ixiu-23.com/uploads/files/202109070557307460.pdf
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614d36febe213---29729715027.pdf
- http://art-lan.ru/uploads/assets/file/fazafonidevifunorebub.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/pg90gqkopvv40j9emj36b06at7/38489658618.pdf
- http://www.mariabeckmann.com/fotos/uploads/files/53874324964.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_off0000b324.bin5235555f5170a6b9b17b8c1b10142b5cbf98d28f70e0ce4349e150edcee70db9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB324 | 15628 bytes |
font_01_sfnt_off0000dae9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAE9 | 16792 bytes |
font_02_sfnt_off0000f300.bin8be0c87d25415ca690fb432640d9a975f6af4a804bd7db14e9a11c3d46a57689 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF300 | 10712 bytes |
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