MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains a large number of embedded URLs pointing to various domains, many of which appear to be part of a link farm designed to obscure the ultimate destination. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a tactic to distribute malicious links across many low-reputation domains. No scripts were extracted, but the overall structure and heuristic firings strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 5
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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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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://www.szphotar.com/admin/img/files/kananidowafukokojonu.pdf In PDF document text
- http://123dvere.sk/files/file/22793009965.pdfIn PDF document text
- http://everest-c.ru/ckfinder/userfiles/files/86458228023.pdfIn PDF document text
- https://faktxeber.ru/resimler/files/kupigukapekonoke.pdfIn PDF document text
- http://jysfh.com/upload_fck/file/2021-9-5/20210905025117670653.pdfIn PDF document text
- https://ethnicminorities.heephong.org/ethnicminorities/cmsadmin/ckfinder/files/mekidebenizemefot.pdfIn PDF document text
- http://makaroma.fr/upload/file/kanikesav.pdfIn PDF document text
- http://pattarasawat.com/ckfinder/userfiles/files/pibovenevepevugavogu.pdfIn PDF document text
- http://danangsculpture.com/uploads/image/files/52092877349.pdfIn PDF document text
- https://hv2barrier.com/application/third_party/ckfinder/userfiles/files/xifekamojilu.pdfIn PDF document text
- http://banglatalkies.com/dynamic-images/cms/file/24623214432.pdfIn PDF document text
- http://spec-so.ru/sites/default/files/file/deverugitukojimirojezara.pdfIn PDF document text
- https://biomedchita.ru/imeg_master/file/30532213829.pdfIn PDF document text
- http://vhshf.de/File/tujuxawige.pdfIn PDF document text
- https://immo-cjeanpaul.lu/userfiles/files/zejulunimemutolilupigod.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133a73eae75d---28086771160.pdfIn PDF document text
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/16133fa8d8ebba---wodiwonidezow.pdfIn PDF document text
- http://hengtaixin.com/HangShun/ckfinder/userfiles/files/6732455276.pdfIn PDF document text
- http://xn----ftbkdcamitb5h.xn--p1acf/files/fck/file/fawebopeli.pdfIn PDF document text
- https://everestart.com/images/stories/file/47312074713.pdfIn PDF document text
- https://cncostruzioni.com/userfiles/file/kilure.pdfIn PDF document text
- http://goldenbaycruisesagent.com/userfiles/file/4963666808.pdfIn PDF document text
- http://productinfo.in/konadnew/userfiles/file/vunima.pdfIn PDF document text
- http://inercial.es/uploads/files/1631231577.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=properties+of+exponent+calculatorPDF link annotation
- https://cakamuzejs.riga.lv/ckfinder/userfiles/files/jazivinikerederagamef.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_off0000cae1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAE1 | 16436 bytes |
SHA-256: 1270f56f5040bdc6ed1de95998b54173fdd85c6c66db27ea47c56e501370d55e |
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font_01_sfnt_off0000f517.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF517 | 10676 bytes |
SHA-256: ecbae8a14a56ab5a70964fc3e6b5733087572365bbbcb666d3474a112555a5c1 |
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font_02_sfnt_off00010db7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DB7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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