MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links pointing to various PDF files hosted on what appear to be compromised websites. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics indicate a pattern of using disposable or compromised hosting for these links. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or distributing further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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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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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://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134a2070cbb6---zugorugululutoli.pdf In PDF document text
- http://tnslib.tools/userfiles/files/gotawara.pdfIn PDF document text
- https://www.tristar-technology.com/ckfinder/userfiles/files/62632385155.pdfIn PDF document text
- http://olgapolyakova.de/files/files/33759046639.pdfIn PDF document text
- http://www.greenfield-sustainability.com/images/files/40373959431.pdfIn PDF document text
- http://obkladlazby.cz/userfiles/file/54341790726.pdfIn PDF document text
- http://lotusromeo.fr/app/webroot/files/userfiles/files/85350680255.pdfIn PDF document text
- https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/1i8pmes6bp7lmr3o46jv02qku3/nesegufokomafezutodejidet.pdfIn PDF document text
- http://www.tiande-global.com/ckfinder/userfiles/files/xoduf.pdfIn PDF document text
- http://xn--54-dlcdkamdj4btild5b.xn--p1ai/ckfinder/userfiles/files/zofafuzuvulozokagu.pdfIn PDF document text
- http://csc0311.com/userfiles/file/20210921051255_bgl3a8.pdfIn PDF document text
- https://huaku3c.tw/uploads/files/202109140342306040.pdfIn PDF document text
- http://co-mit.com/uploads/files/15236821244.pdfIn PDF document text
- http://cinstech-inspect-survey.com/fckeditor_userfiles/file/89352669868.pdfIn PDF document text
- http://hitelesen.com/userfiles/file/77973209695.pdfIn PDF document text
- http://hagelkonzept.de/userfiles/file/dipinewedebinobopikilotu.pdfIn PDF document text
- http://pivotal-technologies.com/userfiles/file/xegapomotorizuxo.pdfIn PDF document text
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16145ee1b56760---18621046917.pdfIn PDF document text
- https://xn--p3t29jo1ed4o4xw.tw/upload/files/jamofetavegurebakufi.pdfIn PDF document text
- http://associatedreclaimed.reclaimedoils.com/userfiles/files/71918947530.pdfIn PDF document text
- https://quanticabtl.com/cms_2018_quantica/sgi_userfiles/userfiles/files/pesipipadowesuxesupodag.pdfIn PDF document text
- http://teplolux72.ru/upload/file/31130818654.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=goldberg+aria+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d414.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD414 | 19620 bytes |
SHA-256: 840c6565870502c426eea026c689e8db748931bfea26dc4e07f2f64b70af347f |
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font_01_sfnt_off00010720.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10720 | 10484 bytes |
SHA-256: 70ae9b7d5bb4bbb5627c297c83a72d9a5c398d8202d8b205f766d2d0e00a9887 |
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font_02_sfnt_off00011e92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E92 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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