MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external websites, several of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://oniceh.ru/uplcv?utm_term=solving+equations+with+ln PDF link annotation
- https://alpinismbihor.ro/app/webroot/files/userfiles/files/14607062981.pdfIn PDF document text
- https://braintreeclinics.com/app/webroot/img/files/66262698026.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f1fcf40951---natatabodorulepixoderede.pdfIn PDF document text
- http://knuhpharm.kr/userfiles/file/20210922054449.pdfIn PDF document text
- https://oykufestivali.com/ckfinder/userfiles/files/sowixepezek.pdfIn PDF document text
- http://candleelectricals.com/uploaded_files/userfiles/files/16595813652.pdfIn PDF document text
- https://fond.ru/userfiles/file/fajazada.pdfIn PDF document text
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1614085a1b22c3---jemimoxujobub.pdfIn PDF document text
- http://ballarioarchitetti.eu/userfiles/files/xunakixubototir.pdfIn PDF document text
- https://al-wesam.com/userfiles/files/pujosatakis.pdfIn PDF document text
- http://peaceinsrilanka.lk/ckfinder/userfiles/files/95736979200.pdfIn PDF document text
- https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149a141c244b---7122288507.pdfIn PDF document text
- http://mrcookie.tw/upload/editor/file/092302156488.pdfIn PDF document text
- https://10fci.org/userfiles/file/98754994185.pdfIn PDF document text
- http://kiko168.com/UploadFile/file/20210905124859560.pdfIn PDF document text
- http://thumpamonpally.com/userfiles/file/53121868638.pdfIn PDF document text
- https://al-wesam.com/userfiles/files/jirowimeg.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b1b65137be---4171158487.pdfIn PDF document text
- https://timminsrenovations.ca/file/KYzOvVS714WPdmbS.pdfIn PDF document text
- http://woodlander.sk/grafika/file/finodirekisebevoda.pdfIn PDF document text
- http://boathousebrokerage.com/userfiles/file/42845699192.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_off0000d99b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD99B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f1ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1AD | 18592 bytes |
SHA-256: 2fb8dec4a6b00d7b6f827601f57a30d574f04fdab99d7494efcd8c976574039b |
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font_02_sfnt_off0001226d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1226D | 10760 bytes |
SHA-256: 94df4db2b88857b0af3d0e405512674bbc80c49008245644b67b39576407dbe6 |
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