MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on disposable domains or compromised CMS uploads, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a malicious document, likely intended to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://cuatro-pr.org/sites/default/files/file/95151402849.pdf
- https://galaxy-training.com/userfiles/file/86259925801.pdf
- https://quote-supermarket.com/userfiles/file/29629503445.pdf
- http://matras-devison.ru/upload/file/36199241253.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615f19d94df04---mowunogusugatiz.pdf
- http://xz-brand.com/ckfinder/userfiles/files/kolezajojajufem.pdf
- http://guojingmall.com/userfiles/file///56627120941.pdf
- https://olympicwroclaw.pl/zdjecia/fck/file/23313128740.pdf
- http://severstroysnab.ru/userfiles/file/sunukuxefe.pdf
- https://mbbs.hr/files/detilinabatopovef.pdf
- http://kriosispl.com/cote_dor_import/admin/ckfinder/userfiles/files/gexeporajededozetekakova.pdf
- http://saltokisport.com/uploads/files/lemafosez.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16146df827da2f---nusaxaxazigixitepu.pdf
- https://molecult.metallo-tests.ch/sites/web/upload/files/75866908976.pdf
- http://longarmquiltacademy.com/fckeditor/userfiles/file/xugevuzejupubela.pdf
- http://bangladeshceramicsociety.com/uploads/editor/files/nisunazipokudax.pdf
- https://jiu-hang.com/upfiles/editor/files/lirujirexabo.pdf
- https://daiichitravel.com/uploads/news_file/nimuwovatumefegisuv.pdf
- https://albizy.com/ckfinder/userfiles/files/sobeviniwarajedixorebi.pdf
- https://windfreeklima.com/upload/ckfinder/files/72096062367.pdf
- https://mcdelandes.ca/uploads/file/wukaf.pdf
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/05485a5d63bbd22d37645cbbacd6e881/pabenakanoxewoxesavamif.pdf
- https://mp2020.csysadmin.com/ckfinder/userfiles/files/11816253746.pdf
- http://qdjshg.com/files/file/13602943124.pdf
- https://jasz-pap.hu/UserFiles/file/98020713614.pdf
- https://feedproxy.google.com/~r/Gsjc/~3/KGDyd8lM0uI/uplcv?utm_term=rent+out+farmland
- 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_off0000ba11.bind1d331ff84a35e484987f5b8d155b3bf121e2e170750eac2d8deb4af07032f4d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA11 | 10400 bytes |
font_01_sfnt_off0000d19b.binf473baf23c74ade767e65801b6b1e6e6f6009555fed160d1969ce098137c31f9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD19B | 15952 bytes |
font_02_sfnt_off0000fa31.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA31 | 16792 bytes |
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