MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of numerous URLs, many pointing to compromised CMS uploads and link farms, suggests a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a spearphishing attachment attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://cructi.ru/uplcv?utm_term=introduction+to+sociology+anthony+giddens+pdf+download PDF link annotation
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/4sc2ugq95sgh0jqmbojf2geas6/59507785283.pdfIn PDF document text
- http://gorisum.net/fckeditor/upload_file/file/55428582545.pdfIn PDF document text
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160751ab26ae1e---kazoxiv.pdfIn PDF document text
- http://josephlillianmorrisfamily.com/clients/59960/File/45968236760.pdfIn PDF document text
- http://animationcoach.com/userfiles/file/72943241164.pdfIn PDF document text
- http://ledins.lv/cms/file/43360389765.pdfIn PDF document text
- https://tectrongim.com/uploads/file/94372899274.pdfIn PDF document text
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610c09d54ff46---28538043488.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c0ae5f15d26---kiwedu.pdfIn PDF document text
- https://mobilieroccasion.fr/uploads/file/sepabodotuzarosi.pdfIn PDF document text
- http://seoulsquare.com/userfiles/file/13354142901.pdfIn PDF document text
- http://paroissedementon.fr/upload/files/21347332934.pdfIn PDF document text
- http://hpc1970reunion.com/clients/3/3e/3eb4c5728feca7eb79feed4eed44c519/File/99790483141.pdfIn PDF document text
- http://186086.com/upload/files/makigofuno.pdfIn PDF document text
- https://108pizza.pl/uploads/userfiles/files/xesug.pdfIn PDF document text
- http://jaika.in/images/documents/files/51477407841.pdfIn PDF document text
- http://4reality.cz/userfiles/files/41940822275.pdfIn PDF document text
- https://memo-log.com/userfiles/file/vudaluvi.pdfIn PDF document text
- http://www.ags-sib.ru/ckfinder/userfiles/files/43580973201.pdfIn PDF document text
- http://www.abcklima.hu//data/editorfile/riminunuwol.pdfIn PDF document text
- http://dwallacelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/50030045989.pdfIn PDF document text
- http://lab4050.com/upload/editor/file/97691497952.pdfIn PDF document text
- 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_off00010d8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D8B | 11148 bytes |
SHA-256: b7fbd05433fb7ad92c7ce090c8988934e893abd5073662ac3b8d6ca6e816f4f6 |
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font_01_sfnt_off00012765.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12765 | 18356 bytes |
SHA-256: 2ef5ec71f0c3c781ba822f45fa96bb9064c614edc2d5cba8a236937cfe7923cc |
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font_02_sfnt_off000156e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x156E6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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