MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a link farm pointing to compromised WordPress upload storage and other disposable hosting, suggesting it's designed to redirect users to malicious content. The presence of multiple external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic strongly indicate a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160792d1baefd7---54892093352.pdf
- http://qtjdb.com/UploadFile/2021/05/10/file/20210510_111923_157.pdf
- http://jjmcp.jp/userfiles/Image/file/74348889706.pdf
- http://glamour-nsk.ru/ckfinder/userfiles/files/dedupixekulokade.pdf
- https://mertlakustika.cz/images/pages/file/rutepowur.pdf
- http://pressvaluation.net/userfiles/file/90889828424.pdf
- https://congnghethucpham24h.com/upload/files/kirojofe.pdf
- https://stcc-sa.com/motakamel/Ups/files/63416149337.pdf
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607df0e53a936---90549374419.pdf
- http://expnavi.com/sites/all/sites/default/files/file/5620752936.pdf
- https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/e9argi9nri8153u1819uvdpvg7/godemizirodunon.pdf
- https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16098b3de0b4ac---pefofotugubideg.pdf
- http://irinaburmistrova.ru/files/78810460198.pdf
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160c0bc55d8a7d---filalilejafazire.pdf
- http://animationcoach.com/userfiles/file/motitug.pdf
- https://doanhnghiepvietnam.org/img_duhoc/files/86406748650.pdf
- https://1snrpaulista.com.br/ckfinder/userfiles/files/pemunilagenudejenewezev.pdf
- http://thegibbsfamilyreunion.com/clients/d/d9/d929505c7faf6263097cc97620c39d65/File/gales.pdf
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160d5e09be9b41---jomopelovurokegagakab.pdf
- https://twinslock.com/ckfinder/userfiles/files/20411412102.pdf
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ad8ed3066cf---sezibapefuziteb.pdf
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/97ltmlojc2dcr8a0dj55vq4uvj/66478268927.pdf
- https://suavitinhtannha.net/upload/files/63536499110.pdf
- http://akademibt.com/resimler/files/14490209538.pdf
- https://keram-market.ru/files/uploads/files/vulumasavubafowozipekaf.pdf
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1611448594d223---bikifoxatopupegilexiveg.pdf
- http://rockbond-aac.com/id-admin/fckImages/file/robenajodu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=kindergarten+dolch+sight+words+pdf
- 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_off0000dfe6.bin2e83fc403e06d66ca5e5855d4aa8a3c3405689cd90a20382de8c7e2268a003f1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFE6 | 17900 bytes |
font_01_sfnt_off00010dcd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DCD | 16792 bytes |
font_02_sfnt_off000125e4.bine504e0df90a7831bf79b348a4dbc649afbde22a30b248c519c2318d90f3eda04 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125E4 | 10976 bytes |
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