MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to potentially harmful content. The presence of these links and the overall structure strongly indicate a phishing or malicious redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
Heuristics 6
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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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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.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609dfab5c3598---26927805942.pdf
- https://fzclicks.com/demo/files/editor/file/80076294656.pdf
- http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nobamowep.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af91cca027c---bozezisijokewapufixe.pdf
- http://tencanpowder.com/d/files/sosoxofonudof.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b105678f0fd---78008110801.pdf
- https://2acontractor.it/images/file/42414884664.pdf
- http://thebeautyofdesign.nl/ckfinder/userfiles/files/zagelelorolero.pdf
- https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/50dbb789a530f7087caff5a55b58ae5c/43359472463.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca6a9775da.pdf
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/51235856616.pdf
- https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/rqrdag4p7foi0f694bknqrocu7/ridimelesokebed.pdf
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc1aa32b150---27521038521.pdf
- https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/1kci59rbob0kho6fmd9bgt9n8t/pabefewowa.pdf
- https://gofropack.com/wp-content/plugins/super-forms/uploads/php/files/0fd5d8aeb7858c02780efbe5fa838aff/jeripenidovexelugoteke.pdf
- https://bcbc3399.com/upload/files/20570079340.pdf
- http://xn--2-140-swe8h.xn--p1ai/files/pikugazojawul.pdf
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/3d8be5a0b6ccda68952a5b0fd5ecedc2/26842104731.pdf
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d9dd75f6d5---94837829458.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16080a65e92390---97808841149.pdf
- http://smn68.com/clients/75339/File/tewefu.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=limiting+reactant+worksheet+1+answers
- 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_off00011290.binbff83219c88a9a7df019d51b8f365d35b95479dea66d0549565b975d7d42f326 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11290 | 10820 bytes |
font_01_sfnt_off00012b6f.bin7676bef14a9b2df5697edec5bc5a052b5795121aa1be4fb0be5f11587cfe881d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B6F | 17792 bytes |
font_02_sfnt_off000159ed.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x159ED | 16792 bytes |
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