MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as a link farm pointing to compromised or disposable hosting, and a machine learning classifier identified it as malicious. The ClamAV detection confirms its malicious nature, specifically as a phishing trojan. The embedded URLs suggest an attempt to redirect users to potentially harmful sites, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://etyekilovarda.hu/userfiles/file/59238650674.pdf In PDF document text
- https://dongciao.com/uploads/files/202109031646491194.pdfIn PDF document text
- http://mgtofubbq.com/uploads/files/44558762290.pdfIn PDF document text
- http://lesmashclub.com/imgUpload/files/zodinurulaf.pdfIn PDF document text
- https://marcuspietrek.de/MARCUS/files/file/36134009884.pdfIn PDF document text
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/1c560cb5e8635955f1d34e54a54376dc/56187134917.pdfIn PDF document text
- https://used-machinetools.ro/app/webroot/files/userfiles/files/walug.pdfIn PDF document text
- https://cuisinescartier.ca/upload/editor/file/53651105846.pdfIn PDF document text
- https://bselink.com/userfiles/file/71566439205.pdfIn PDF document text
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b18e7836f2d---ribirowebuzonesobij.pdfIn PDF document text
- http://sochi-polyana.com/ckfinder/userfiles/files/46060847753.pdfIn PDF document text
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/e36edf763aa924c219bc8d4b4952b576/zoliduzarowubofidomiteje.pdfIn PDF document text
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/8cc6b496ea270d9c7fad1566d09a89b6/gotadozunafuxufoxuki.pdfIn PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607be34c8cb6e---81314730822.pdfIn PDF document text
- https://nisahanpin.com/calisma2/files/uploads/56115820362.pdfIn PDF document text
- http://shesob.com/file/files/58172201661.pdfIn PDF document text
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160807d07c3e83---zinalopepor.pdfIn PDF document text
- http://sarkanyhajo.hu/files/file/gupedagiwajurum.pdfIn PDF document text
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/a75f90025f291c0a621c7721f9656954/1018953589.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/75829917831.pdfIn PDF document text
- https://osakadentalcare.com/contents//files/pewabomawebuwo.pdfIn PDF document text
- http://anma.pl/anma_edytor/file/38070314773.pdfIn PDF document text
- http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/moxumijobedinozagenem.pdfIn PDF document text
- http://didula.com/img/file/voferijezatadinemajonu.pdfIn PDF document text
- http://slsnn.ru/content/file/fetofafiruxibun.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=archer+c20+user+manualPDF 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_off0000e4f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4F5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fd0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD0C | 10508 bytes |
SHA-256: 53d8c85dbbeb745a4b58015fc00960245aa89960271dec0b0b18c207601da9c4 |
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font_02_sfnt_off000114de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114DE | 17888 bytes |
SHA-256: 13bba9399c58bae217c3009aff879c305cc48e2b0bc0e2597a852b93fde707f1 |
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