MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links indicates an attempt to facilitate phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 6
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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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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 https://archism.ru/uplcv?utm_term=proving+cyclic+quadrilateral
- http://banphimchuot.com/userfiles/file/fusoxe.pdf
- https://pablohernandes.com/wp-content/plugins/super-forms/uploads/php/files/d27dac741f187950231e6dbb8601ec1e/dajamosedotap.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/0f12b4695b6d73984afb618ccadadec4/8202768927.pdf
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b463a2f01e0---ferotarakasipevuwor.pdf
- http://maskaevlawyer.ru/userfiles/file/67343308290.pdf
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091a521beeea---96644165784.pdf
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/4ab6d02e615d936e49091345f68d05b6/paxawetegifizadokejojuko.pdf
- https://24emk.ru/ckfinder/userfiles/files/7596057149.pdf
- https://sport-jicin.cz/dokumenty/38524318609.pdf
- https://fokusmedia.com/images/uploads/47401118123.pdf
- http://skiflogistics.ru/userfiles/file/fukigizo.pdf
- http://andrelandberg.com/userfiles/file/vivesodadagalafirel.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cd3370da4c---31025956133.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606def45b8bd1---96810487557.pdf
- http://divorcefinance.nl/uploads//file/galizase.pdf
- http://www.prieteniitehnicii.ro/documente/file/9317137080.pdf
- http://entone.es/wp-content/plugins/super-forms/uploads/php/files/31a8c8e488f89b7b05647170f5d753c9/15940971394.pdf
- http://kids-ex.com/kudexepojetiwagupero.pdf
- https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/66866194123.pdf
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/ko0vsdcf5ldp0he9rm0tm5log6/91400447214.pdf
- https://nhadatonline24h.com/Images_upload/files/zazubav.pdf
- https://contabil-fiscal.ro/mm/file/93144378635.pdf
- http://warraichmeats.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7ec4022b3---dosagexazeruvuzosaxule.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_off000192ab.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x192AB | 16792 bytes |
font_01_sfnt_off0001aac2.bin03419154a4fe7b196d4342e50ae50f69fd010d5ef79af27706eef6537c2ebb9c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AAC2 | 10804 bytes |
font_02_sfnt_off0001c34d.bin5e8ef174b62b889e4d825110d4fec29b0b528560d05649777e3cdb6338eec550 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C34D | 18620 bytes |
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