MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ClamAV and an ML classifier. It contains a large number of embedded URLs, many of which point to potentially compromised or disposable hosting domains, suggesting a link farm designed to redirect users to malicious content. The presence of multiple PDF link farm heuristics indicates a deliberate attempt to obscure the final destination and potentially evade detection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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://oreade-breche.fr/userfiles/file/ritezatarobupiv.pdf
- http://immobilieninvestors.eu/userfiles/file/fikagatijijepiminid.pdf
- http://vksraja.in/fckeditor/upload/file/bopufenefusesejil.pdf
- http://www.zywawiara.pl/pliki/11998416348.pdf
- http://rkmaster.ru/uploads/files/77687414067.pdf
- http://gld-lining.com/user_img/files/zaxax.pdf
- https://floraplant.gr/FCKeditor/userimages/file/pazupoge.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3814d8823---mubugunugikogasinopof.pdf
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/tbcg98fb4i11qbhp2er9imue1r/niwufazegoxowe.pdf
- http://global-insurance-broker.de/downloads/vidotakasifugepofevukotiw.pdf
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/2d2251b5f7ec1ae73bea639d5cd2d12d/vozar.pdf
- http://eis-pieschel.de/UserFiles/File/luvomusa.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/0f7f0f4905f336387d14fa4cca10d567/ferevedevanuwevutoxovobup.pdf
- http://topup-fight.com/ckfinder/userfiles/files/gefij.pdf
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/f2grpu7vf74abetgbq1c3ilpk0/84438625056.pdf
- https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/16086e4fe9bad9---logovapimopowopiwa.pdf
- http://suamayin.biz/userfiles/file/sikamemozegazapiralegew.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/80fk9h790mohp1bu7fgvf44iu2/pefazisikikabebugalawaf.pdf
- http://areaarchitetti.com/userfiles/files/17652488842.pdf
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/a8f13105fe71449e38d0081897064836/tawumemi.pdf
- https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/506d2b6c7743190f40e1f808de6a4a54/rukufotiruxunazowiwufoki.pdf
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/5c79bd6eb986304e925e1b7b227bd039/rorekerekupipawobozuniga.pdf
- https://agatanorek.com/files/file/60772092874.pdf
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/d02e8302534c9b3c13cbfac62728a356/10395474638.pdf
- https://tectrongim.com/uploads/files/sifuwojafupibipini.pdf
- http://pantanalmsnews.com.br/ckfinder/userfiles/files/15113020847.pdf
- https://newtech-utm.pl/userfiles/file/99977584433.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=fentanyl+other+name
- 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_off0000f9a5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9A5 | 16792 bytes |
font_01_sfnt_off000111bc.bina16137edc3fd481624f11490621fff758a277e705520dd76c4715ee69b62b7cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111BC | 10204 bytes |
font_02_sfnt_off0001286a.bin361ba68d8df4a9abbe12d79cbd3a05acead87dee276b5373ef744bfc1d134d95 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1286A | 18048 bytes |
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