MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan distribution attempt. The document contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting a link farm designed to redirect users to malicious content. The presence of invoice-related language further supports a phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://crewmak.ru/uplcv?utm_term=startup+tax+exemption
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/160979c5ca35a5---66322708591.pdf
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/9ljlrcou7jqbsvu2g4e4hs60l0/relopiradutadu.pdf
- https://cristalensi.com/public/File/38251086342.pdf
- http://verduciautodemolizioni.it/userfiles/file/gemesixejuvonakaxa.pdf
- https://bleikss.com/userfiles/file/gonuvowuveka.pdf
- http://aldara-latinoamerica.com/userfiles/file/bodatovatinimiloraxiza.pdf
- http://osheamaloneynylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/63975132818.pdf
- http://herculesestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/53176287770.pdf
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a87b43d6cc---pepef.pdf
- http://musorcentrum.hu/files/article/file/vonez.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c379acb1396---sipewowonaxav.pdf
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f1a249d812---rogamefuzejipuf.pdf
- https://lawrenceyezersky.com/userfiles/file/duledelogus.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b744e66f4bb---97062660513.pdf
- https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/669f934b1791f6bb23d1ed9479210215/39692441708.pdf
- http://asiavent.com/UserFiles/file///tixumepelag.pdf
- http://eko-inwest.eu/upload/file/rarupijisiwanewe.pdf
- https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/i5klfhbq6rkiin9s2du0kc1re2/sunididojapotaf.pdf
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608127683b141---kugefuniwezopulosalawe.pdf
- http://meyergarden.com/ckfinder/userfiles/files/xolatazalojewolegamun.pdf
- http://softwarefactory.nl/images/file/15206581079.pdf
- http://tj-1970-50yr.com/clients/e/e8/e8fccb6fb94f20b6ca4375945b3939e1/File/94104496392.pdf
- http://www.greenbriarpropmgmt.com/wp-content/plugins/super-forms/uploads/php/files/77be37b607920bfbb910c379f98b33d1/razedutegem.pdf
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/ngssc8dct53lqgvs1tmm0dlm0a/zubidigobag.pdf
- http://angelojrobles.com/admin_initial_test/userfiles/file/duzetonugofipunirezupidix.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_off000100f6.bin7f44f95735de6a41bf60d1b84c1bafb8ea6e01823bab1d2b35674edd8c3a179d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100F6 | 10476 bytes |
font_01_sfnt_off000118c6.bin6725411f3c10f43deb748959f0d4a18aa4cb801615696937d7f18bed8b7e1186 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118C6 | 16988 bytes |
font_02_sfnt_off000144f9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x144F9 | 16792 bytes |
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