MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was identified as malicious by ML classifiers and ClamAV, flagging it as a phishing trojan. It functions as a link farm, with numerous embedded URLs pointing to compromised CMS upload directories, likely intended to host and distribute further malicious content. The heuristic 'SE_URGENCY_LURE' suggests a phishing pretext, though no specific document body text was extracted to confirm this.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca5dbb48d9---junasojexisofipivevi.pdf
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160989a97d27bf---65085783395.pdf
- https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/6ccab09063b298c462e794ebad34e1e7/19573060202.pdf
- http://bhhangkhong.com/upload/images/files/31893370878.pdf
- http://phuclocvienjsc.com/uploads/image/files/69139177764.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160814834b26f7---56455477000.pdf
- http://driscollandgibson.com/images/edit_images/file/35969712820.pdf
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/325c733612c4050f0f87e9d3f938ce5f/bapubitebexefudenamenu.pdf
- http://netisiletisim.com/guvennet/resimlerfiles/17926509049.pdf
- https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/7thu7iguvi79sae4r2jicnio14/vuzafap.pdf
- http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609f1c4039912---kigubowuve.pdf
- https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/bbff0ce29b5a03bff81d1bd723b3f2f9/73744954156.pdf
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/ccslcfa4go816pfao0gjb0keu7/juwubilov.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/9fb497a1dd0818276484eb24c1800ae8/6273680346.pdf
- http://retroldn.com/userfiles/file/70893817730.pdf
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16076aa0157ff5---42547280659.pdf
- https://mvpartners.be/images/uploadedimages/file/vikewujagavasik.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606f68eeea9a3---60024920740.pdf
- https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/ee2a0d4b380101ac145048ee6b686570/69162825782.pdf
- http://omegapizza.net/uploads/files/95245775333.pdf
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/238c7dcfe315f35112d09a3e2d563c9c/zumerumelinufakej.pdf
- http://tjsijiqing.com/ckfinder/userfiles/files/2021/0604/d8b500a01e3e270339d48ed454b970e0.pdf
- http://www.bufolari.com/public/immagini/file/19086254232.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a0e1340ac42---xejidekebigiduromidoju.pdf
- https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/ff962b072dd234e080fc9cb58af2f35b/95567607222.pdf
- https://777mto.org/contents//files/nufurizumab.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=stupid+trivia+questions+and+answers
- 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_off0000f5c3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5C3 | 16792 bytes |
font_01_sfnt_off00010dd5.bin016eeaee7a54950c02882beac34ea5a84ce4b4f20ffb47f8dad2da7cdea3b7c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DD5 | 17740 bytes |
font_02_sfnt_off00013c2e.bin7f8b136aa166ea61e9ad4cd57eb923a227b2d3005e86455aac8e0390a07d727e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C2E | 10812 bytes |
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