MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' confirms the nature of the links, and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' highlights the use of compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://nomylo.ru/uplcv?utm_term=examples+of+miscellaneous+items PDF link annotation
- http://ecocj.com/userfiles/file/20211005070911.pdfIn PDF document text
- https://extremedriveline.com/ckfinder/userfiles/files/kusibugatufuragedup.pdfIn PDF document text
- https://saglamahsapkutu.com/img/editor/image/file/22727599844.pdfIn PDF document text
- http://reklamavysocina.cz/UserFiles/File/1488834777.pdfIn PDF document text
- http://matsusushionline.com/uploads/files/90874953465.pdfIn PDF document text
- http://gemculture.com/userfiles/file/gidemegixe.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149e397255b5---mafowetiwoton.pdfIn PDF document text
- http://embeddedhr.com/ckfinder/userfiles/files/punenaguwodavumi.pdfIn PDF document text
- http://atomleasing.ru/media/File/wesuga.pdfIn PDF document text
- http://magicfood-cn.com/files/20210923120847.pdfIn PDF document text
- https://kimcert.com/E/file/vawegukuruvegoxa.pdfIn PDF document text
- http://760_709737661.mildmedia-dev.eu/uploads/userfiles/files/fodedepadalivuwemawuxome.pdfIn PDF document text
- http://opsir.eu/files/file/fojosasanirekilutedadiw.pdfIn PDF document text
- http://industrialsupplies.pk/userfiles/files/rerazepapetelal.pdfIn PDF document text
- https://isosklo.cz/uploads/tiwobuwuzijomajubo.pdfIn PDF document text
- https://vnsteeldetailing.com/UserFiles/files/wegali.pdfIn PDF document text
- http://abwhopewell.com/uploads/files/5289066821.pdfIn PDF document text
- http://hunicorn.hu/userfiles/file/barebutoranopa.pdfIn PDF document text
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/8bt8618pic32evdrukpkj9rqg9/89979754798.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16145041c47599---tiwifomugefub.pdfIn PDF document text
- http://batiment-tunisie.com/userfiles/file/jobonixivodudutuf.pdfIn PDF document text
- http://zaiger.ru/img/file/45369060262.pdfIn PDF document text
- http://decom.pro/admin/ckfinder/userfiles/files/49738609024.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_off0000d3a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3A9 | 10724 bytes |
SHA-256: 7a683a8ec5cf99d2dbc5c5e68c6ac11f7ed4a9750104eb610a776998cdaa32a3 |
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font_01_sfnt_off0000ec51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC51 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010463.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10463 | 18044 bytes |
SHA-256: 11bee311093ca13dd566b7174e139f7b9e3510b09ca35abe6dd254994d63bf93 |
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