MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised websites, many of which host other PDF files. These links likely serve as a distribution mechanism for further malicious content or phishing attempts. The presence of multiple links on compromised CMS upload storage suggests a coordinated effort to host and distribute malicious files.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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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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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.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e31e73d62f---xupejemox.pdf In PDF document text
- http://petersonspann.com/clients/3/32/32c4b2f41fa698b5b938e848169c8dcb/File/10719328740.pdfIn PDF document text
- http://lungshingcentre.com/userfiles/25137856525.pdfIn PDF document text
- http://cityhigh78.com/clients/2/2d/2ddbae4fb74c169819b3574d76e4e264/File/rabonekowewodamut.pdfIn PDF document text
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c5571a76ed3---90025582830.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/luvebemilabele.pdfIn PDF document text
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098913de1703---matukapunab.pdfIn PDF document text
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c9bb500e4cd---51145003927.pdfIn PDF document text
- https://aulacvn.com/upload/fck/file/18177773718.pdfIn PDF document text
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a20df7e8ca0---11842801596.pdfIn PDF document text
- http://global-insurance-broker.de/downloads/21657598352.pdfIn PDF document text
- https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/e7985440ca71be2157cbe7b8c25aabf2/luwawera.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4d3eab36ec---kawopekokitulo.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/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=physiology+in+nutshell+ak+jain+pdfPDF 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
- 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_off0000c86c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC86C | 5448 bytes |
SHA-256: 749f5ea248d71356338e65e53c12453777e1d99b7e7a58389fa747f94bcf3359 |
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font_01_sfnt_off0000db0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB0E | 10500 bytes |
SHA-256: c0749e9530fc28525c9511bab23a7abf2563a1b18593b3bca6c12b260b04700a |
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font_02_sfnt_off0000ff0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF0E | 16164 bytes |
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6 |
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