MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites and disposable domains, forming a link farm. This suggests the document's primary purpose is to redirect users to malicious or phishing content, likely as part of a spearphishing campaign. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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 http://www.zywawiara.pl/pliki/gekugumojideperuxe.pdf
- http://xn--80aamdqpfpr.xn--p1ai/upload_picture/rasuboxef.pdf
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/6ba084ebe7799c62deda9d6a18b87bd3/87437987759.pdf
- https://anthonygillant.com/userfiles/file/desitijepe.pdf
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/7588ef4e9f55f4550b889d0f28997e99/pagozudamuxejuxi.pdf
- http://niezapominajkowo.eu/userfiles/file/49328063431.pdf
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd58872fa8---3651449212.pdf
- https://planet-pvc.com/upload/files/zurivegukeliratikijuxupa.pdf
- http://bodemveenweiden.nl/bodem-veenweiden-img/wefumema.pdf
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/10db8629c83f0465d119fc1aee5cdbe5/87199274775.pdf
- http://dakhoanhanai.com/images/files/86756823900.pdf
- http://schmetterlingsgaerten.de/file/86871141271.pdf
- http://zuche0551.com/upload/file/fifufitesubafa.pdf
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/244cfe9e061e275ec98ed6c6e5e5ea68/dupibuk.pdf
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072cfab380ef---95713275544.pdf
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/4a49cc3f9073e55e907e2c7f3d44d591/96176121158.pdf
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160c26e80ed0e1---fejemuj.pdf
- http://www.thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/jasegimisunifibiselepil.pdf
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/770c004d87d4911a2b1019fe5360b8da/16538426772.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a528d35448b---jivovizubidebijidibesug.pdf
- http://euro520.net/userfiles/file/16221140051760530819.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=home+depot+stockton
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/627cd6afab83ada246093a660cbfb6a1/78970139850.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_off0000f14c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF14C | 16792 bytes |
font_01_sfnt_off0001095e.binf5750e7d8794498091f7261708e52d946d58bdae9d5493fe16aea7912e556502 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1095E | 17612 bytes |
font_02_sfnt_off00013664.binb837a574f9dd38b17416d3e72536714a7b4bcdd3a1be0b89d4c382fb9a3dfe0b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13664 | 10356 bytes |
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