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 acting as link farms. ClamAV detected this as a phishing trojan, and the ML classifier also flagged it as malicious. The embedded JavaScript likely facilitates the redirection or download of a secondary payload, while the link farm structure is a common tactic for distributing malware or leading users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607af263781ba---xifizomimobax.pdf
- https://stradatextiles.com/upload/ckfinder/files/pufewotak.pdf
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608175eae8321---vexararulabiwinipav.pdf
- https://rijst.nu/userfiles/file/94295802391.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/8fd85e039517fd8e8a207dd576578ba8/33456518998.pdf
- https://peterdegendt.be/file/33153510270.pdf
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160887233bb65c---94410962484.pdf
- http://albarossa.jp/js/upload/files/93428688361.pdf
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160cbdbc8651a7---pogiditeverafosumapujeb.pdf
- http://ibconsulting.it/userfiles/files/bosomozafewiresano.pdf
- https://bevillelecomte.ovh/ckfinder/userfiles/files/puxapugalimisaximi.pdf
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/b21dc21141da0f599eb7f275379622b4/682875447.pdf
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087e51b67877---46446939972.pdf
- https://amatnieks.com/pictures/image/93428241097.pdf
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a913eb7ea26---zajevarofejofojoxurifekix.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/a5d53e45ee42ecb380f5fe2bb900aab0/62877718415.pdf
- http://apcmagon.com/userfiles/82163174918.pdf
- https://heatingboiler.ca/fck_upload/file/mepuviwuzoluda.pdf
- http://vipnjl.com/userfiles/files/rimepuvozemonanepozusuke.pdf
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/8b5c26c76cb440f8fe430d051bfe3297/zerapenekexutaz.pdf
- http://salukool.ee/upload/userfiles/file/radirojoxujuru.pdf
- https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/i81fdvkq3mur4qu18fc59s4v4p/kazijazutijivibaxinu.pdf
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/40ffe1f16c1eddb7463de4bb67e73380/budabapob.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=latest+government+travel+advice
- 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_off0000ea7a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA7A | 16792 bytes |
font_01_sfnt_off0001028c.binf90b6a8a5112f389c73300bf747390414471314ab5c2701220a2bb856719f971 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1028C | 17308 bytes |
font_02_sfnt_off00012fb5.binb9555c6fbcd54645aefcf510ad8c6ff11ea3289892c73f46e3beee118494a88e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FB5 | 10736 bytes |
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