MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing campaign. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically a phishing trojan. The embedded URLs are likely used to redirect users to malicious sites for credential harvesting or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://midufefew.ru/123?utm_term=steuererkl%25C3%25A4rung+basel-+stadt PDF link annotation
- https://vixugusimuxomuj.weebly.com/uploads/1/3/0/9/130969476/0ff2a3073.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4461751/normal_6050bb194bf9f.pdfIn PDF document text
- https://xudepafuvinuk.weebly.com/uploads/1/3/0/9/130969511/perepidosobevufida.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387411/normal_601974b58bdc0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454290/normal_6041fe056323d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407070/normal_605c8505c70c3.pdfIn PDF document text
- https://silepokow.weebly.com/uploads/1/3/4/3/134366863/9081579.pdfIn PDF document text
- https://gebovobavafol.weebly.com/uploads/1/3/1/4/131406715/fcae5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4467927/normal_6015c354ca716.pdfIn PDF document text
- https://kisebuketi.weebly.com/uploads/1/3/4/6/134657705/pofaku.pdfIn PDF document text
- https://bupiwuzisulim.weebly.com/uploads/1/3/0/8/130874125/jupusolifovibapegexi.pdfIn PDF document text
- https://padubutidosose.weebly.com/uploads/1/3/3/9/133997835/wojuganidopuzeb_jizizer_kexepawume_zufibusijesuma.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4368496/normal_5ffce1c3ab68b.pdfIn PDF document text
- https://zakulupibuwuvos.weebly.com/uploads/1/3/4/6/134686441/bujuxulisipode-pupadi-dodasazeburuzik.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4428054/normal_5fe87b842d518.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393034/normal_602daa5fb1ccc.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://funesut.pbworks.com/f/goblin_280_fireball_manual.pdfIn PDF document text
- http://namikikis.pbworks.com/f/49276453420.pdfIn PDF document text
- http://nimulivupale.pbworks.com/w/file/fetch/144623679/.pdfIn PDF document text
- http://ruxafonan.pbworks.com/w/file/fetch/144686388/53732146865.pdfIn PDF document text
- http://saladolu.pbworks.com/f/49089566689.pdfIn PDF document text
- http://mizelabe.pbworks.com/f/52561197436.pdfIn PDF document text
- http://fubajulak.pbworks.com/w/file/fetch/144637080/xivilubejezu.pdfIn PDF document text
- http://zusemivak.pbworks.com/f/45018283798.pdfIn PDF document text
- http://nusometa.pbworks.com/f/4703750365.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010739.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10739 | 5568 bytes |
SHA-256: 556c4e29fd8579c8096328197416af9161023a1eab261c3bc731ab8d61bf9c84 |
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font_01_sfnt_off000119a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119A7 | 14088 bytes |
SHA-256: c3c33d92f6832eebf506528c7cc33da30ba4fd0d1f42053a038b69f9c64f6448 |
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