MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm for SEO manipulation or malicious redirection. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://sk-massimo.com/js/upload/files/regewutemuxosu.pdf
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f55585ba19---19415916621.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d39de12bdd1---busemevutufarixowig.pdf
- http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c73c431b09b---41004553425.pdf
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/c302ae502e6d0ef783b0e0a7730667ff/46193954651.pdf
- http://sobinco.cz/ckfinder/userfiles/files/lelewegixovopewobujota.pdf
- https://floridaholidayplanner.com/wp-content/plugins/super-forms/uploads/php/files/87bc802f477a12fa9c708728e6d79794/15332629326.pdf
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/aaa65a90233fbcaf0d49e30dbb8a4d70/xawiwatatu.pdf
- http://coreaad.com/DreamDataUpload/file/330585194.pdf
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1607a9d581d2b8---fuxupetimuxewovaku.pdf
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/7b06c5b68d56dd877df4e9f0dd5f398d/84811675671.pdf
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/965ced87326d317398985b26e71147d5/nitesujexogunowibusojob.pdf
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607929d62fc30---boriluvazukowejasaxodok.pdf
- https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/ae67dd23af0ee15e03f41f53cb957def/ferutikinasujorikerozesat.pdf
- http://realloans.com/clients/73966/File/xudufosoperepuse.pdf
- http://baschin-heizung.com/meineBilderAlbertGrundschule/file/60499883241.pdf
- https://flexi-cms.com/uploads/file/dafibugotitilev.pdf
- http://bright-inter.com/file_media/file_image/file/darodumuzowugob.pdf
- http://asea-admin.com/_userfiles/file/20210629090024.pdf
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/nebupifozofak.pdf
- https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160bf9a4ec7079---zejeradunelixalufinajelu.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=how+to+download+images+using+python
- 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_off00010f58.binf900bcc775b5e4e78e21e154b90b5ac4dc20945ece550a63f20d5394e82e9fc8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F58 | 11028 bytes |
font_01_sfnt_off0001289e.binc0c66b4d1733e7aded53894764a54583d372e3e3d7ac8998f9da0aeeb0128f3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1289E | 18380 bytes |
font_02_sfnt_off0001594b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1594B | 16792 bytes |
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