MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm used for phishing or malware distribution. The PDF structure and embedded links are consistent with a spearphishing attachment used to redirect victims to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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 http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607dfc9db4eb5---zidiru.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160abf65338016---fawofevapatovewarokesuwa.pdf
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/6fc9003bb5ab6776db208ac8ea92089a/69522969081.pdf
- http://hublihorse.com/uploads/userfiles/files/63193526215.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c9a0a706ad---dufabebefazizimivexidu.pdf
- https://kham.vn/userfiles/file/wisifera.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/kollmn0mms3umk321gsvpa33b1/tuwirezefeloliwafoweperor.pdf
- http://degeninhotel.ru/admin/ckfinder/userfiles/files/nutif.pdf
- http://perles-del-beya.com/userfiles/file/16078945585.pdf
- https://doellefjelde-mussemarked.dk/images/newsmail/file/rujeto.pdf
- http://straub-online.ch/userfiles/files/86952222436.pdf
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/fakdq3lrlate5jjp6cr2du8gm8/nagunelimobekus.pdf
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c38974d7fb1---30695448751.pdf
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/oc8v6ev8framfjmo2l6b41mgll/11669235028.pdf
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16093bde013f99---vezabatidegugaxoxusovet.pdf
- http://ipmarketing.net/userfiles/file/96231313932.pdf
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b54fb46e6e---6062561333.pdf
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/vjnc0l1lofrru8n9a373hivo44/dexulonanuseganisila.pdf
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/meq7ur83memv3ip6l923dpm65s/95359514856.pdf
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/f28e5f000579ba4b8fbc802971d12314/zukorivazuwonifolo.pdf
- http://boathousebrokerage.com/userfiles/file/9242942216.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/fe96aced6d85a0887a3a8359ce010411/41415766102.pdf
- http://anhuifan.com/upload_fck/file/2021-5-24/20210524185401119597.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cd844c9da3---39702461867.pdf
- http://veiligheidsslot.nl/ckfinder/userfiles/files/sipogadinutimemunoweroge.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/4f8fab27008c23ad52ad65143374ba97/23244919558.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=chemical+equivalent+of+mgso4
- 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_off0000d0cf.binf5949ac7bc0a9841055e36ddb16ed6e67f0be107bd335bd5ba5a101ebf375dc4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0CF | 11104 bytes |
font_01_sfnt_off0000ea54.bin67cbfdef92cf0247a5e34a868e25dbbec82290e854a78500f092667f083b5386 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA54 | 17016 bytes |
font_02_sfnt_off000116bb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116BB | 16792 bytes |
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