MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised websites, likely to facilitate phishing attacks or distribute further malware. The presence of PDF-specific heuristics like PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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://crewmak.ru/uplcv?utm_term=find+out+how+many+solutions+an+equation+has PDF link annotation
- http://www.yoko-ono.be/images/userfiles/file/tilugazopanu.pdfIn PDF document text
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ddb952f464---gomuxipalamidomobobuluvix.pdfIn PDF document text
- https://serka.com/serka/upload/files/67224970391.pdfIn PDF document text
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/ofl0ar9pu9und2ug55lk6gn5av/zufakitegonegizikijari.pdfIn PDF document text
- http://stonebriarranch.com/clients/876969/File/34203573049.pdfIn PDF document text
- http://tanriovermensucat.com/uploads/genel/files/78453439627.pdfIn PDF document text
- http://bdn10.cz/files/file/kubunobometisexime.pdfIn PDF document text
- http://www.anclupnapoli.it/userfiles/file/busosusinize.pdfIn PDF document text
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/b179d33857de0a36e28243e6ea0939e7/vemik.pdfIn PDF document text
- http://www.pattyn360.com/upload/forum/files/sisodabifufogamum.pdfIn PDF document text
- http://orchid-daikanyama.com/userfiles/file/tefonazinilixafifamamit.pdfIn PDF document text
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a547e60adbb---mafozexavisijumudaz.pdfIn PDF document text
- http://buddhavehicle.com/userfiles/file/musisun.pdfIn PDF document text
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b038cb3c473---siranuzumijisodemomoz.pdfIn PDF document text
- http://nail-free.com/ckfinder/userfiles/files/fosasudinixo.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608358f6449d5---71834155395.pdfIn PDF document text
- https://armagedonspedycja.pl/files/file/josowewokozolejiwalerisib.pdfIn PDF document text
- http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/21300500408.pdfIn PDF document text
- http://csc028.com/userfiles/file/20210612202734_sof57p.pdfIn PDF document text
- https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/0tmfg4kbhtdm3olv6td3luf6pe/nefeganikez.pdfIn PDF document text
- http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/30088380482.pdfIn PDF document text
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608908e34cecd---xizovope.pdfIn PDF document text
- http://bephoangdung.vn/uploads/ckfinder/files/75662068603.pdfIn PDF document text
- https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/54443220428f7f900f04be4bd5870842/3572227600.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_off0001091d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1091D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012134.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12134 | 10836 bytes |
SHA-256: 2c4b33b230e25074530a78335893ffe0483ecc430cae48bd43bb6ccc1dc75ea7 |
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font_02_sfnt_off000139d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139D8 | 17476 bytes |
SHA-256: 84633d8db7075406dbb1489b770233287cde5b2c31fe4952359926cc63e647d0 |
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