MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to compromised websites, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The presence of multiple PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://dichvuhangngay.vn/uploads/image/files/bewugivamupu.pdf
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c428bc5f4cc---36238197935.pdf
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e0279b84d5---45282850143.pdf
- https://contactfm.be/userfiles/files/74077303854.pdf
- http://www.maderas-navarro.com/ckfinder/userfiles/files/87887422217.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160707f114c1d8---63790268608.pdf
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160867f1f5338a---gabuguwif.pdf
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/150f3121c4597573d22d48c8da3aa957/55760494889.pdf
- http://cukiernia-waltar.pl/qcms/userfiles/file/zezejonopeliwulezan.pdf
- http://microlana.com/ckfinder/userfiles/files/zodozivesafadiwatafado.pdf
- http://ferrocom-spb.ru/userfiles/files/ketufolofizivumijinet.pdf
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/daca5f314b62f2d2679a705c250e9b1d/77651137055.pdf
- https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/44e1825acb7a447088e9ecf0c8a0264d/kivufejuf.pdf
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c05a0f3095a---75756114650.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3f26b9008---nilavajisirumawuzifitow.pdf
- https://detectiveoffice.net/userfiles/file/5179768686.pdf
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/nqb8irj6km17t05sd7962m81gu/gosega.pdf
- http://agroanaliz.by/upload/editor/files/kotususarisidujid.pdf
- https://99shayari.in/userfiles/files/zulumotoferugisodegiz.pdf
- http://app8itebarandgrill.com/admin/images/file/kevevusefekadad.pdf
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/fb290436f0eb6942a39a39a17dec3ae7/sutapudamaxeratosavedaf.pdf
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d63e3ca75---zudapojexijazedujefi.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/0p32kfpc877lbv263vmtnd58dv/63129291365.pdf
- http://ithalattagarantibelgesi.com/resimlerfiles/lepipibolalefedufu.pdf
- http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7edb0d9d1f---35398791407.pdf
- http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080baac20420---6703849294.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=how+do+you+feed+as+a+vampire+in+eso
- 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_off0000fa48.bin5d9d4b279eb4f761f9617b3fd86aa933bdabbbc97b444421be94777e921c0a29 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA48 | 10872 bytes |
font_01_sfnt_off00011367.bin08fcdc1867fa0a9c1512acade34383a4d5426a28f52486f2e3fbe65929aaae67 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11367 | 17148 bytes |
font_02_sfnt_off00014003.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14003 | 16792 bytes |
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