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 ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites, likely serving as a distribution point for phishing or malware. The presence of external URIs and compromised CMS upload links strongly suggests an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://queure.ru/uplcv?utm_term=chat+a+chat
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/443a3b9b3251567df17f52c56621279f/22045552502.pdf
- https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/bh4fq7h2e63ikd37ovq32j5fh6/zenefapifatunadajibewemus.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160810620d200b---zigoxesubawepu.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-5-7/20210507215507213708.pdf
- http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/toromebilabupegepe.pdf
- http://mp-hd.de/data/aktualnosci_imgs/file/tebemot.pdf
- https://ghnservizi.com/file/11811073631.pdf
- https://alteanetworks.fr/img/file/girisijes.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ba152f85639---derovi.pdf
- http://insidethedigitaltrend.biz/userfiles/file/74827223401.pdf
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160779effee974---14420133650.pdf
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa3531c3695---nevulato.pdf
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160984243d0cb3---17027136529.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b429b309660---54456220471.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5c8cb22311---59301890087.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/8b1599b52da5fdf80e3db006f331647e/rapuduvovezivulipiseziwi.pdf
- http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/1lvdt38miunv3pvrn7gr34brc2/93195869215.pdf
- http://ligneus.hu/upload/file/zukatesar.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bfed8b7a0e1---59569091056.pdf
- http://toyotarent.tw/FileData/ckfinder/files/20210618_1533F13D71A8BCF0.pdf
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bd4711c8a65---82403072573.pdf
- http://hainescentreasia.com/images/file/sozetazegurutopoku.pdf
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608eec989662c---16320210527.pdf
- http://runningrhinelanderrabbitry.com/clients/875187/File/16298033534.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160a2b34bb8a44---97500914522.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_off0000c865.bina718df1c081436ce5853ac526c5a7e5f8e81f2cf7d7f5322366bd4142080310d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC865 | 16544 bytes |
font_01_sfnt_off0000f382.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF382 | 16792 bytes |
font_02_sfnt_off00010b98.bin514ff0eaf560aff4e947bcc55298047ec129ccc9bfea345fe68ac6ec7e8179a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B98 | 9596 bytes |
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