MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a significant number of URLs, many of which point to compromised CMS uploads or disposable hosting, forming a link farm. This suggests the PDF's primary purpose is to redirect users to malicious sites, likely for phishing or to download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 7
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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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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://pixomot.ru/uplcv?utm_term=completing+square+methods
- https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f8ab9b5b35---64638014545.pdf
- http://myphamasia.net/upload/files/32768487702.pdf
- http://ehoron21.mn/uploads/files/61548068237.pdf
- http://abworder.com/uploads/files/zewofezidegabokadosujama.pdf
- http://bestpokeya.com/uploads/files/susoworuvumipenasosoju.pdf
- http://sevoir.hu/uploads/file/80292162527.pdf
- http://seatraderhk.com/userfiles/49958708124.pdf
- http://0vote.com/ckfinder/files/jezamerodesujekujav.pdf
- https://irepairplus.nl/app/webroot/files/userfiles/files/47388265405.pdf
- https://matfreklam.com/calisma2/files/uploads/59326156362.pdf
- https://tomorrowhubs.com/upload/users/files/zuzisavodaso.pdf
- https://gikguamerica.com/userfiles/file/lelonimupuxipe.pdf
- https://artcorner-fiberglass.com/userfiles/files/zumil.pdf
- https://sogelec-eng.com/files/ckfinder/files/96215921877.pdf
- http://www.investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/76609471440.pdf
- http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/jajidunevorinezofavoved.pdf
- http://joinsocialbubble.com/cake/beta/userfiles/file/56749860639.pdf
- http://park-seversk.ru/other/js/ckfinder/userfiles/files/wojepodubakedifotime.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ca68750673---vitenosidaxojesenusov.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/cfd9ff6d6b8d393010a06af26eed20c0/refofifibovosazofodekigu.pdf
- http://rigdrilling.org/userfiles/file/xulazowoledubeten.pdf
- https://parvazyab.com/basefile/api203/files/sowek.pdf
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/nk53umopnnn5iiu393muen6r9i/97301236415.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_off0000d41e.bin2966136d5662fe654d51659e8feaa35b1b95a403d805202b18e63b816977b25f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD41E | 11116 bytes |
font_01_sfnt_off0000ed48.bin587b5ff774e6f85e95a2cb172236dc3dc170da3c87800a9a1665b9886e310185 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED48 | 18564 bytes |
font_02_sfnt_off00011d9d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D9D | 16792 bytes |
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