MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of an IP address literal in a URI further indicates suspicious activity. While no scripts were explicitly extracted, the PDF structure and heuristics strongly suggest an attempt to exploit users through malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://mikailang.net/userfiles/file/20210505191943_1122252670.pdf
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074a9499d7be---megonoravu.pdf
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/pjrbc555vlb737iujph1jbv3t7/wadabadomuxafofo.pdf
- https://travelsafeway.com/userfiles/file/39993004754.pdf
- http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/17583122391.pdf
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/1e47738a6120f459467a33d5cfb43b97/nivuzewodagotojupu.pdf
- http://alteredcompta.com/buddha/ckfinder/userfiles/files/tewawunobaleta.pdf
- http://brenno-tojestto.pl/userfiles/file/datevekuwezoguju.pdf
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c99edbb676---5423822919.pdf
- http://aimic.com/userfiles/file/20026099110.pdf
- https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/edb2889c998302b7e3e8731fff234537/75744793564.pdf
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a32b948a63a---gixokunoralujilinesetobon.pdf
- http://bjhtdszdh.com/v15/Upload/file/20216394478123.pdf
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/a7eced6a96f1a220df67fb8000b7d8e0/16081673707.pdf
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/309fc06e49401652b2de0080547de8ad/sutiwev.pdf
- https://accuratesearch.com/userfiles/file/70562127853.pdf
- http://uralinteh.com/uploads/files/luramekutenimapix.pdf
- http://heninrealty.com/userfiles/files/35411846193.pdf
- https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/792b47b0817a964db611874f57ba4040/70138469896.pdf
- https://murtenhof.ch/userfiles/files/73603826375.pdf
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16070410c3d30b---61482489051.pdf
- http://www.centralperdana.com/file/kebitesaru.pdf
- http://157.230.241.115/image/upload/File/tijabegiparozef.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/a8793557f3f6c04c3dc52082b40cec56/mutom.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=stereo+amplifier+circuit+diagram+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_off0000ec5e.binef23d9796ec8463e5e9bb00ce1cc0c9bbdd3b7865b617d59bfd66f28f733d3ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC5E | 10864 bytes |
font_01_sfnt_off0001054a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1054A | 16792 bytes |
font_02_sfnt_off00011d5c.binff66850cfb65b30393d6a8ef865d10343c9b802efd17c6ba1227c810b75f0645 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D5C | 17600 bytes |
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