MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a link farm pointing to numerous other PDF files hosted on compromised websites, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics. The ML classifier and ClamAV also flagged this file as malicious, suggesting a phishing or malware distribution intent. The embedded URLs are designed to lure users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160cc2fa5a465b---29895540713.pdf In PDF document text
- https://wronba.pl/uploads/wysiwyg/file/venapuraburinewapev.pdfIn PDF document text
- http://cjatkinson.com/userimages/72282727332.pdfIn PDF document text
- https://menu2uplus.com/images/file/pibatojekisaxitomawudo.pdfIn PDF document text
- http://short-story.ru/upload/file/keposodisuzigegedazol.pdfIn PDF document text
- https://peterdegendt.be/file/25984831244.pdfIn PDF document text
- http://bloomx.com/sites/all/sites/bloomx.com/files/tabekadevunufovotawibili.pdfIn PDF document text
- https://clubforeducation.com/FCKeditor/userfiles/file/73852620069.pdfIn PDF document text
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/89v3q5dmd8rp6d5v4rv3bo8b5h/vavajisujalilovoleginu.pdfIn PDF document text
- http://firanywiktoria.pl/uploads/editor/file/42901695022.pdfIn PDF document text
- http://www.lugashotel.com/data/editorfile/57202304532.pdfIn PDF document text
- https://mvpartners.be/images/uploadedimages/file/49113530146.pdfIn PDF document text
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b8b56884ee---28292975122.pdfIn PDF document text
- http://jan-fotografie.nl/upload/files/jemolini.pdfIn PDF document text
- https://airflow-skateboards.com/upload/file/39488265872.pdfIn PDF document text
- http://skupka23.ru/upload/m/91588598197.pdfIn PDF document text
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160f1997ae929c---kexilogob.pdfIn PDF document text
- http://dungcubepgiangtrinh.com/webroot/img/files/xobegifupiva.pdfIn PDF document text
- http://mdknoodles.co/uploads/files/15452939971.pdfIn PDF document text
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098e8c653f68---gulopopewarodemamizow.pdfIn PDF document text
- http://merwepizza.com/upload/file/nowezolito.pdfIn PDF document text
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/28b0a5f0af6c66b892b59beaf8954f46/61556506376.pdfIn PDF document text
- https://jesssmithtri.com/jesssmith/ckfinder/userfiles/files/kakebinevilenosolulokuw.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4464045a60---4559694302.pdfIn PDF document text
- http://tavaszitura.eu/userfiles/files/61327434235.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=palladio+string+orchestra+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_off0000bdf5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDF5 | 17708 bytes |
SHA-256: b5e80b9e425abf87a3b836543ca0abceedd53bb861175a6341e578a2fe147ad3 |
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font_01_sfnt_off0000ebb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBB5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000103cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103CC | 10900 bytes |
SHA-256: ded0444ded07b932103b7697de5f3e5945073446ec85de2de6985037d310bbc9 |
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