MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these URLs and the overall structure indicate a phishing attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://smidgel.ru/uplcv?utm_term=meaning+of+proximity+in+english
- https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/d544008bc9bac149b29593b28046b473/21460175796.pdf
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607577ff08170---pefekiwuw.pdf
- https://mk-promotions.com/ckfinder/userfiles/files/rafolu.pdf
- https://www.tanyadantus.com/wp-content/plugins/super-forms/uploads/php/files/b7ac0ec31fd26fb0d33ac50cea3bf8ee/96400230296.pdf
- http://bjsprt.com/uploadfile/file///2021060807360719.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/16075ccb1a6995---34415861403.pdf
- http://amuseonline.com/absite/userfiles/file/70048752000.pdf
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b071b102121---4192558548.pdf
- http://orgue-chantepie.info/FCKeditor/upload/file/64300179133.pdf
- http://golden-candies.ru/webroot/files/files/virolalajegemutemunafir.pdf
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160983d927f566---41653577830.pdf
- https://ckmusicdesign.nl/userfiles/file/betosup.pdf
- http://cosmickino.ru/sadm_files/85626269015.pdf
- http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e479f28e1d---vekogifufigegodapad.pdf
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609f51c82d935---gawujegepebeti.pdf
- https://blsautomation.com/ckfinder/userfiles/files/59836839915.pdf
- http://shreyaghoshal.com/konadnew/userfiles/file/80905578400.pdf
- http://szwygs.com/upload/63798947559.pdf
- http://tunglamgarden.com/images/fck/file/wofowixilunixozilorax.pdf
- http://uniquestatues.com/clients/9/91/91c6e204ee4529d3b478b0717040545d/File/jikavalalidowanaxisoxiriw.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093baa5ef55d---wigezilag.pdf
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/e1hj19r1q3qdf24j7v7qthdtk3/6055688234.pdf
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16072835d9cb9e---92312301222.pdf
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092769f2018b---19673546254.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_off0000cc08.binbabb8907125adb90a773c7a79d64a51ed99ec42c05a1d634cdc980acb58ca3af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC08 | 11012 bytes |
font_01_sfnt_off0000e579.bin08c98546ca6c0f6d022f315c1cf6aba52ba809302aa09ae4659c8a8d7f07d5b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE579 | 18676 bytes |
font_02_sfnt_off000115a7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115A7 | 16792 bytes |
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