MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, specifically as a phishing trojan. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or redirection scheme. While no scripts were explicitly extracted, the PDF structure and numerous external URIs indicate a likely attempt to lure users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://leonvi.ru/123?utm_term=ratio+test+convergence+rules PDF link annotation
- https://cdn.sqhk.co/murefazomejo/qjgjho3/todewovarapiku.pdfIn PDF document text
- https://jirilerimu.weebly.com/uploads/1/3/5/9/135967849/3712244.pdfIn PDF document text
- https://vekowafonomi.weebly.com/uploads/1/3/4/6/134692424/288743.pdfIn PDF document text
- https://pelabinal.weebly.com/uploads/1/3/1/3/131379552/jesadamonak.pdfIn PDF document text
- https://mafewesoxadix.weebly.com/uploads/1/3/4/6/134697647/adecd979b64ab24.pdfIn PDF document text
- http://kprovk.xyz/93607918407t5t9x.pdfIn PDF document text
- https://nukanepinax.weebly.com/uploads/1/3/1/4/131454046/peralavewoxi-jogifogelegaw.pdfIn PDF document text
- https://wisapemewe.weebly.com/uploads/1/3/4/7/134713478/daccee8f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379731/normal_5fc604a78ea73.pdfIn PDF document text
- https://nixawajumumija.weebly.com/uploads/1/3/4/3/134338940/bikiji-lipavu-bozabi-gugepisabulad.pdfIn PDF document text
- https://depujoseteg.weebly.com/uploads/1/3/5/3/135309287/gomaxonabonij.pdfIn PDF document text
- http://lnstagramsupportingcenter.com/16009982336k7g0h.pdfIn PDF document text
- https://cdn.sqhk.co/fedovipawe/fCjeYgj/xotonudi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://s3.amazonaws.com/niwotipugonuvoz/31349031211.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
- http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00013567.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13567 | 5032 bytes |
SHA-256: 60441d5a3f7c47492f838e26e3960ed9e767910b72212b58dca0b050b8bcdd2e |
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font_01_sfnt_off000146a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x146A3 | 3720 bytes |
SHA-256: a7c194c348f4bc26aad06ae1fa1eadf76503a3aca856ff80314c3d87a816eea9 |
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font_02_sfnt_off00015203.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15203 | 13636 bytes |
SHA-256: 54000d0ddefe4c61533caf223c9a62259b44fbb60a07608acbb8f5158cc6bdfd |
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font_03_sfnt_off00017f92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17F92 | 16088 bytes |
SHA-256: 2450b0f4c33e20d9a3659f3046875d00a99c908e043ceabfe2ad87726df6ce6d |
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font_04_sfnt_off00019488.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19488 | 9892 bytes |
SHA-256: 9107e1cf020b51aa3b9246222fd8f6459bd6243442d6620c06ff81b5f79bf1f4 |
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