MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, containing numerous URLs pointing to compromised WordPress sites and other disposable hosting. These links likely lead to phishing pages or further malware downloads, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
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://drafthe.ru/uplcv?utm_term=travis+cottrell+in+christ+alone+with+the+solid+rock
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/dfa69c9cfeb43e9904b92d9b35f1fa23/ronomenavisanaro.pdf
- https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/8790c674771e700ec83b1641b3b25e08/79711823321.pdf
- http://tktravel.shop/FileData/ckfinder/files/20210629_27FB060F21D9714E.pdf
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/1607c1e596a232---51784371449.pdf
- http://sarljarry.fr/userfiles/file/rurovase.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa2093282e---1242644275.pdf
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608429ba1ccca---51490539034.pdf
- https://binarbaidtrading.com/public_html/userfiles/file/fotepezedukifib.pdf
- https://twr1115.net/files/fckeditor/file/fobowedik.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7beb126be---risedakexofenosebimowaziv.pdf
- http://be1971.com/clients/a/a1/a19be2fc4cf8b198b52f296748481ce5/File/84703273318.pdf
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/32s2drq438795qtqk3sl8ssa1o/5374922121.pdf
- http://gianphoiduyloimodel.com/Images_upload/files/satagararabepexum.pdf
- http://szsahsh.com/uploads/files/18889997755.pdf
- http://ildongwire.com/userfiles/file/67366191773.pdf
- https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/e8cb53a136e018d3e4a02fc6fcf50d11/90383932856.pdf
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d36c6d7ee5e---61682863231.pdf
- https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/54ccdd7f541e2256d74c15b10740cce2/11400324176.pdf
- http://shqinze.net/admin/upimg/file///foxajadutoruji.pdf
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160c52c9661f52---91687287460.pdf
- http://nhs-carpediem.com/clients/46367/File/zabilot.pdf
- https://techson-cctv.com/upload/file/daxuteluxisezigob.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/9829adb4f0174971a7de37549a9405b7/98109914247.pdf
- https://rybczewice.pl/userfiles/file/17302147861.pdf
- http://adveotec.com/img/file/tazezepovasoritibumirumo.pdf
- http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/16084bba9adc29---likasokufora.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_off0000c318.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC318 | 16792 bytes |
font_01_sfnt_off0000db2f.bin890f71182f9baccd41725a35a9a1a87738716f6597ecb7234cc7c50698f263e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB2F | 10676 bytes |
font_02_sfnt_off0000f3a6.binae3531e0c22d575881cdd0c7b43f610018ac6d72c0d4f6cd6ca9697f20f2841f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3A6 | 17480 bytes |
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