MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/ce6c57f993ad0c42cf8276af6669b26e/85313093156.pdf In PDF document text
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/0ce19f10da57e9c922a3519c8f08d0e6/66130303673.pdfIn PDF document text
- http://phantasos.org/userfiles/file/48731233303.pdfIn PDF document text
- http://benthanhfarm.com/images/uploads/files/saviso.pdfIn PDF document text
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a13b2f061bd---95271715308.pdfIn PDF document text
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/843a3c10d3e4b0a3d3eb224c3a2056a4/87895988040.pdfIn PDF document text
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/16084f86260472---zuluwejokonifonope.pdfIn PDF document text
- https://liniagdanskzydowo.pl/files/widodijoperakol.pdfIn PDF document text
- https://aspirans.com/files/file/nisunemokuwuwugo.pdfIn PDF document text
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/abada52055bb6dfbb8af825921973848/xikiji.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c621cb9cf6d---fizokeropemileroladatel.pdfIn PDF document text
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8dcd366f0---wuxanorute.pdfIn PDF document text
- http://drairtools.com/ckfinder/userfiles/files/sivepovuzijefufedalobem.pdfIn PDF document text
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1157446a2---78043626711.pdfIn PDF document text
- http://lica-mpt.it/userfiles/files/59493093827.pdfIn PDF document text
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/160cf1fc72a108---davebudalitikapeb.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=students+of+the+year+2+full+movie+download+in+mp4PDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e8a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8A8 | 5860 bytes |
SHA-256: 04094360f27d9758afab6f0c6a3d92632c6b18e8114e71e24a825f9450713a5e |
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font_01_sfnt_off0000fc95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC95 | 10672 bytes |
SHA-256: e37ce327184f1b6164310b096759a2432211ea337011a59c1482f1af530d55bc |
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