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, indicating a high likelihood of malicious intent. It contains numerous external links, with several pointing to compromised CMS upload storage and disposable hosting, characteristic of a link farm. The presence of these links suggests an attempt to redirect users to potentially harmful content or for SEO manipulation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://rockpapersun.com/upload_mce_image/file/43468137055.pdf In PDF document text
- https://izr.fr/files/97810687207.pdfIn PDF document text
- http://bjsixiang.com/jingkelun/userfiles/files/20210909072603.pdfIn PDF document text
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130f717e253e---rorukimenetoninigiresiki.pdfIn PDF document text
- http://xn--12cfu9bc1efac9a9azfdsb7b9d1f0j.net/ckfinder/userfiles/files/46292435344.pdfIn PDF document text
- https://infypos.com/infyposcms/media/wojitudolamukera.pdfIn PDF document text
- http://www.zaluziemalina.cz/userfiles/file/gogojivatoxomow.pdfIn PDF document text
- http://windowsplusllc.com/ckfinder/userfiles/files/365165353.pdfIn PDF document text
- https://tractorpulling-emmeloord.nl/upload/file/xilesagofopusisog.pdfIn PDF document text
- http://mnwebdesign.dk/userfiles/file/53637229338.pdfIn PDF document text
- http://nelly-design.ru/upload/files/33590089489.pdfIn PDF document text
- http://weifong.tw/fckimages/file/kitizepukirisebikuxesu.pdfIn PDF document text
- http://15881588.com/ckupload/files/78035377954.pdfIn PDF document text
- https://rajaunited.com/contents/files/79451408084.pdfIn PDF document text
- https://accu-split.com/userfiles/files/vuxaga.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f02e0c2fff---76028802617.pdfIn PDF document text
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16131881882675---59796642888.pdfIn PDF document text
- http://wxdyzs.com/userfiles/files/61316269466.pdfIn PDF document text
- https://mtmnetwork.net/uploadEditor/files/1281253193.pdfIn PDF document text
- http://enjoybowlramenandpoke.com/uploads/files/xenafegatavuw.pdfIn PDF document text
- http://lachambredechos.com/userfiles/file/78237876269.pdfIn PDF document text
- https://responsible-tourism-alliance.com/content_file/files/1314606431.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=stardew+valley+mod+apk+unlimited+moneyPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000de3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE3C | 10916 bytes |
SHA-256: c55d5d8027abcdccf8e1ee95a3ff0ef808bb60e3950163cbe5e12bf66ede17c3 |
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font_01_sfnt_off0000f78b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF78B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010f9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F9D | 17532 bytes |
SHA-256: 6fc583a3467689bc670798765a5bad3191440bcacbadd76df17eb9732911e2da |
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