MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and ML classifiers, indicating a phishing or trojan threat. It contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The embedded JavaScript likely facilitates the redirection or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://medvor.ru/uplcv?utm_term=how+much+thread+for+friendship+bracelet
- http://seamcc.com/UserFiles/files/34504276859.pdf
- https://drsubhashawale.com/ckfinder/userfiles/files/takop.pdf
- http://maduraicaterers.com/app/webroot/js/ckfinder/userfiles/files/womirod.pdf
- http://sugarfree-gelato.com/upload/file/netukosizalojofuvufekon.pdf
- http://insureatkk.com/ckfinder/userfiles/files/2868226018.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608028e8c8c44---28895447710.pdf
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/qkgpeiaigno4shkfv18eb41kci/tidiwutulimarisutu.pdf
- http://mateuszkucharski.pl/admin/file/64292050213.pdf
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca7833ceb3---wipipofudabaxukamidetari.pdf
- http://archi1919.com/smlclub-files/file/pebivabisodakogab.pdf
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/55fe5c06f2fa53d4808f8f2be461cfd6/80397905934.pdf
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbc34d6339---60579521223.pdf
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a861652f0a5---gujidoxivawedorenuwasi.pdf
- https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/996ebb97c0051aaf92988e5e26294935/2089652494.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b21ba3a9225---36823211825.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a818cc88662---36579277837.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/f94283d9048272e386d702e0d52aa185/julaso.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- 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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eaf0.bin74347aa0ff0862f66c0c9473445785da051e813c098565fc87951e431a48f524 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAF0 | 5468 bytes |
font_01_sfnt_off0000fd66.bin98f14aa2f0cd0075eee960beded9bdc12c922ee51153ffc582b0de70f73300fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD66 | 10504 bytes |
font_02_sfnt_off0001210e.bin05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1210E | 4324 bytes |
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