MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, but the presence of multiple external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic indicate a strong intent to direct users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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://inwebjor.ru/uplcv?utm_term=bluetooth+avrcp+1.6+vs+1.4
- https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/ef1c2f8754e60c649c2c30d59dd6889d/vexudemudekuji.pdf
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/5579d407cc91635bcf818fdeb5f76c9c/57405457787.pdf
- https://baigiangtoanhoc.com/upload/files/fawagogijelidesu.pdf
- http://praguetransfer.com/files/file/pubidupol.pdf
- http://cherryontop.pl/upload/fotki/file/paxufinoda.pdf
- https://braintreeclinics.com/app/webroot/img/files/zavuzo.pdf
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fb2d4996587---24348581844.pdf
- https://mygoaltv.com/ipp/images/uploads/files/37702134475.pdf
- https://scanclean.bg/upload/ckfinder/files/31917718583.pdf
- http://alisawedding.com/upload/users/files/popukabadiludibewanofibeb.pdf
- http://wittymall.com/multimedia/userfiles/file/sasufalogo.pdf
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/3d9f5f0d22d1beadc1ca250e5ce3504a/lisupesefigogojep.pdf
- https://afayl.com/userfiles/file/53744137107.pdf
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/177fba2f34c35884d6653b4f7fc9174f/18174742178.pdf
- http://siembra.me/uploads/files/20970916486.pdf
- https://bistakalikotenetwork.com/userfiles/file/jujatetedusurizuvovafol.pdf
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/e8816fcc0c090a36140048a29bd69cf7/72214664275.pdf
- https://phuketwebstudio.com/ckfinder/userfiles/files/65391846246.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/4c87ef7efa326d5c450e444e6cd90457/jadokewazobumidofavajobop.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/160740f8aadaa4---82639625063.pdf
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/a2fh8nhen21drfdb8eba6alb01/senaxojunanilapa.pdf
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160789ae78cccf---joxidoxopijiw.pdf
- http://coss-wynn-reunion.com/clients/d/db/dbe3622004495b304d8703879a486b7d/File/rakopimobu.pdf
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/7c202a60fe4f3abda45a306e6158cbdd/buneridijoponajude.pdf
- http://aivieksteslaivas.lv/userfiles/file/guzudi.pdf
- http://www.za.co.th/knowlege/a2dp.htm
- 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_off0000de21.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE21 | 16792 bytes |
font_01_sfnt_off0000f633.bin15ebb357590f5cb4a0853c236f8ffcd26908ca3269912553cf4f8fd64f5bbaa5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF633 | 16800 bytes |
font_02_sfnt_off000121cd.bin7ca867d157ab7a384655e1072021174d4b1a5edda09804113dc68227264c88d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121CD | 10856 bytes |
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