MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically identified as a phishing trojan. It contains numerous links to external PDF files hosted on various domains, suggesting a link farm or redirection mechanism. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a pattern of using compromised or disposable hosting for malicious content distribution. While no scripts were explicitly extracted, the nature of the heuristics and the embedded URLs point towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://ipayon.com/root/FCKeditor/file/befugemubazemiwaw.pdf In PDF document text
- http://pegastelco.com/pictures/files/figozijizokosizufikata.pdfIn PDF document text
- http://studiofelician.com/userfiles/files/50811876262.pdfIn PDF document text
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141bd0b994c0---9347115668.pdfIn PDF document text
- https://finliz.lt/i/File/45380640120.pdfIn PDF document text
- https://musikkursus.dk/userfiles/file/83835525461.pdfIn PDF document text
- http://rklatex.com/userfiles/file/7659823837.pdfIn PDF document text
- http://autoneza.cz/UserFiles/File/juxovuluretituxe.pdfIn PDF document text
- https://sanghvicranes.com/staging/media/jagoka.pdfIn PDF document text
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613d07bbd496e---12341973423.pdfIn PDF document text
- http://zzps.pl/userfiles/file/vexatilabejolitumu.pdfIn PDF document text
- http://apartament-krokus.pl/userfiles/file/32472199994.pdfIn PDF document text
- http://yyfxsw.com/upload/files/keferekaz.pdfIn PDF document text
- http://pijntherapie.be/uploads/files/nudomulewebisesemosu.pdfIn PDF document text
- http://daechienglishpark.com/ckfinder/userfiles/files/33053561484.pdfIn PDF document text
- https://dovolena-jiznicechy.cz/uploads/17167858327.pdfIn PDF document text
- http://bagiez.com/userfiles/file/77150639341.pdfIn PDF document text
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/161408cbc4c8a8---kosojorotameve.pdfIn PDF document text
- https://almuhja.net/ckfinder/userfiles/files/wigupifilupejiwu.pdfIn PDF document text
- http://e-kva.ru/admin/ckfinder/userfiles/files/90805871329.pdfIn PDF document text
- https://gamepinleri.net/calisma2/files/uploads/29314489254.pdfIn PDF document text
- http://cungcapbaoduongcuanhatban.com/upload/files/68858288978.pdfIn PDF document text
- http://cgl.lu/userfiles/files/47216037409.pdfIn PDF document text
- http://josquin-capella.de/download/30828919306.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=download+wifi+cracko+apk+without+verificationPDF 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_off0000c402.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC402 | 17548 bytes |
SHA-256: b1d92a8d1e2bf5ac79d7fbaaaac479661cb4262d1da81f4155b117b8e385330f |
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font_01_sfnt_off0000f14f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF14F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010966.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10966 | 10896 bytes |
SHA-256: 3cee26c81e835088988a714d084a060f924f33a1783ca988dd568dfa3e26afa7 |
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