MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. Static analysis revealed numerous embedded URLs pointing to compromised CMS uploads and disposable hosting domains, indicating a link farm designed to lure users to malicious sites. The document body was unreadable, but the heuristic firings strongly suggest a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 6
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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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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://krisoc.ru/uplcv?utm_term=best+photo+mixing+app+for+android PDF link annotation
- http://portalcom-b2b.es/img/user//file/_0508526001632009132.pdfIn PDF document text
- https://shipnhanh247.vn/asset/files/rozaxatemop.pdfIn PDF document text
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/7fac6542b00bc5a3813edc056d6175b3/kunuto.pdfIn PDF document text
- http://ahrestygz.com/userfiles/files/20210904_104759.pdfIn PDF document text
- https://kstraders.com/userfiles/file/liwoka.pdfIn PDF document text
- http://unicorn-furnitures.com/d/files/49909873369.pdfIn PDF document text
- http://designbeginnings.com/upload/file/95191349511.pdfIn PDF document text
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/161413375e429e---zetitami.pdfIn PDF document text
- http://sgo-bage.com/public/files/files/16893548704.pdfIn PDF document text
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/b52cb57620c6d8fd852a51b5936a92b8/punolurarije.pdfIn PDF document text
- https://tommytest.dish1314.com/data/html_editor/files/90174333914.pdfIn PDF document text
- https://widepolymers.com/userfiles/file/52085551910.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/161309e92be574---38552038445.pdfIn PDF document text
- https://www.liftechforklifts.com.au/application/third_party/ckfinder/userfiles/files/ropiruwexerevakupasadavax.pdfIn PDF document text
- http://mobilahomedesign.com/userfiles/files/45199092319.pdfIn PDF document text
- http://gleb777.com/fck_upload/file/43544151768.pdfIn PDF document text
- http://connectcontrol.net/files/userfiles/files/jorokapubinifiborakekiniz.pdfIn PDF document text
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612f92b17223c---susigor.pdfIn PDF document text
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613200211b7ba---66393214015.pdfIn PDF document text
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1613736292b0a0---5630835068.pdfIn PDF document text
- http://rickgrisolia.com/userfiles/files/19387406574.pdfIn PDF document text
- https://ntiverification.com/userfiles/file/61955214430.pdfIn PDF document text
- http://xn--2-140-swe8h.xn--p1ai/files/27480234304.pdfIn PDF document text
- https://aporpeter.ro/userfiles/file/35867022910.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dc56.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC56 | 11056 bytes |
SHA-256: 049e1fe51bc15285a3a007682ec28d9f1d535e9e08b1a9a3cac2b06124e26d2c |
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font_01_sfnt_off0000f5be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5BE | 17484 bytes |
SHA-256: a204ff43500308066f6f501a130bee925697f3601d05b58fc5b21021e246356c |
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font_02_sfnt_off00012313.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12313 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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