MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The embedded URLs point to various PDF documents, likely intended to redirect users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 6
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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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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 https://zajinet.ru/strik?utm_term=geometry+jurgensen+brown
- https://static.s123-cdn-static.com/uploads/4367645/normal_5ffc72b02ad32.pdf
- https://neranoliva.weebly.com/uploads/1/3/4/2/134266014/gosikaj.pdf
- http://janafan.scienceontheweb.net/bibufupodibazalivujig.pdf
- https://static.s123-cdn-static.com/uploads/4367278/normal_6001ba8e16d0a.pdf
- https://vidijizuv.weebly.com/uploads/1/3/0/7/130776341/bupijipafub.pdf
- https://static.s123-cdn-static.com/uploads/4503617/normal_5fde30e6da97a.pdf
- https://kuginipa.weebly.com/uploads/1/3/4/8/134853520/16a80.pdf
- https://mebopezik.weebly.com/uploads/1/3/4/7/134772208/xomenexapodip.pdf
- http://funomixukipiv.iblogger.org/46258074343.pdf
- https://wixexiwe.weebly.com/uploads/1/3/5/3/135316610/403870.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://203e7bc3-08d7-4ecc-a8df-f797e0d4a079.filesusr.com/ugd/d4579c_9bcfca84d1ff4ec9b704ba1692626800.pdf?index=true
- https://4bbf79d8-97e4-42de-9a75-948158c354f0.filesusr.com/ugd/52f5d3_1fdc7b876ec84082aeee63fb82b21502.pdf?index=true
- https://e1ca4115-fb55-43f9-84f1-eaf814f8c83f.filesusr.com/ugd/18122d_a43beaf7847c490cb65dc24a17d3ef13.pdf?index=true
- https://s3.amazonaws.com/lofese/how_to_use_paint_to_edit.pdf
- https://s3.amazonaws.com/sizabo/jufamos.pdf
- http://xuvaduw.epizy.com/silitotukowinele.pdf
- https://s3.amazonaws.com/magapeguwabe/carbozinc_859_product_data_sheet.pdf
- http://tinijev.epizy.com/jegikojabotoranajewulage.pdf
- https://6376acfe-5884-4251-b3d5-19a03c044549.filesusr.com/ugd/de3d83_fe2f2b12c8b14a62bc558cf1ad8b94e6.pdf?index=true
- http://gubadif.myartsonline.com/lemivovevemonekiwodujik.pdf
- http://xoponupesede.epizy.com/anticoagulation_in_dialysis.pdf
- https://da54c32a-99c7-4590-8520-800dd2d1cae3.filesusr.com/ugd/7973d2_189b5317bab54e14abb45c6f3bd3c758.pdf?index=true
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d4cd.bin5ce3ff4010e50b6ef118119ea38365d68fc8c11c7aad3ea382d1135102390785 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4CD | 5204 bytes |
font_01_sfnt_off0000e68d.bin556f4745bead08a18a328a12b07d9e52918f501325b56bd7a5963c6f9f4446a5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE68D | 10524 bytes |
font_02_sfnt_off00010ab4.bin462d13bd97d7d9b38b38dac4ddb889f891d4742debcdf3bbf084b15d68e01d41 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AB4 | 16084 bytes |
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