MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many hosted on disposable domains, indicating a link farm or SEO spamming operation. The embedded URL `https://gimoguvi.ru/strik?utm_term=japanese+phrasebook+war+department+1944` suggests a lure to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
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://gimoguvi.ru/strik?utm_term=japanese+phrasebook+war+department+1944 PDF link annotation
- https://cdn.sqhk.co/gobajejuz/biaihif/masiluf.pdfIn PDF document text
- https://zuwuroxiver.weebly.com/uploads/1/3/1/0/131070979/loviva.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4421943/normal_5ff09d0713153.pdfIn PDF document text
- https://rorobobadewa.weebly.com/uploads/1/3/1/1/131164171/desonazoverudovowed.pdfIn PDF document text
- https://xunasumip.weebly.com/uploads/1/3/2/6/132696393/5872595.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460449/normal_6040b237f0088.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4479223/normal_601d2bbf2d03f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451736/normal_5fe612f78d5de.pdfIn PDF document text
- https://cdn.sqhk.co/nowonipewo/tgcjfR2/81139206093.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446285/normal_600602ece5826.pdfIn PDF document text
- https://fejisamuzek.weebly.com/uploads/1/3/4/6/134636520/1697a1bfc15.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://bef89f6e-6323-4b84-ad9d-a44490bfcc4f.filesusr.com/ugd/96768c_b0cac0718b204c8ab561df20d844bdd9.pdf?index=trueIn PDF document text
- https://3dbd840c-7861-42b4-b064-af52d1d2f4eb.filesusr.com/ugd/86319b_272c2d3bc11b443db229861b602c9677.pdf?index=trueIn PDF document text
- https://d0fd53c2-66a5-49f7-a942-a4bfc50892a3.filesusr.com/ugd/11baf9_7ecac512b1cc4699a47d22f1c8c4daf8.pdf?index=trueIn PDF document text
- https://9fb0fece-6c2a-4f8b-8ff1-5d9ea67f5ee7.filesusr.com/ugd/f6a907_4ade26e9226e4acea2d8f21eb29b197c.pdf?index=trueIn PDF document text
- https://9df6e0af-a028-4e88-91ba-61a1b37318d5.filesusr.com/ugd/7c1f05_f2140e1b86444a4f85f3546df5d15940.pdf?index=trueIn PDF document text
- https://04a9e765-cf69-4035-9b9a-998d8fb4e692.filesusr.com/ugd/8c5016_6db3ab82446e40d1993b2092e49a826e.pdf?index=trueIn PDF document text
- https://5548a280-a194-4776-8019-0e256783c1fa.filesusr.com/ugd/f2c1dc_63a1fb57083b45738ff56951bff13b82.pdf?index=trueIn PDF document text
- https://fea67d75-dd3b-4bdd-af05-748e92ec8a52.filesusr.com/ugd/05900a_ddb5458509a443dd87303928cb8abac5.pdf?index=trueIn PDF document text
- https://ef4b221f-cfb4-47e8-bf1d-3b5092770df7.filesusr.com/ugd/4948da_0c93586f431c46b4a19f89831e6919f1.pdf?index=trueIn PDF document text
- https://247e77cc-5367-4382-8586-7c5891409f42.filesusr.com/ugd/2dbf5a_2c3f2eb4aede40db8a1087972c597c71.pdf?index=trueIn PDF document text
- https://a1c9bafd-2917-4c1b-b79c-a4b44a941470.filesusr.com/ugd/f0f215_ac091ebfc1244a6cb67b901b0cb3e06b.pdf?index=trueIn PDF document text
- https://488c2ff9-9ff4-499e-8f11-525115e20b22.filesusr.com/ugd/8aba0c_09c637d2ac37479c84e491db12fa4625.pdf?index=trueIn 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_off0000dd2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD2C | 5748 bytes |
SHA-256: e933ffc2b130f6ba2a3d7daba07d6fd38dd63e6bb477025cafc5bdd9e3a1cfd2 |
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font_01_sfnt_off0000f0a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0A4 | 11364 bytes |
SHA-256: c9557aa5f91fc1ab6b6a5e065a3d33e650ff227e8608206573c1370816a5f14c |
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