MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://kuzutuzo.ru/strik?utm_term=nato+phonetic+alphabet+numbers PDF link annotation
- https://cdn-cms.f-static.net/uploads/4366660/normal_5fd1c5b288e80.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4464878/normal_5fc6daa7079d9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366050/normal_605e17589b8c5.pdfIn PDF document text
- https://gapidegit.weebly.com/uploads/1/3/1/3/131379699/894de9ea13.pdfIn PDF document text
- https://xinozujo.weebly.com/uploads/1/3/0/8/130874257/6930773.pdfIn PDF document text
- https://losazutuliwuja.weebly.com/uploads/1/3/4/6/134622760/moses_rizolegomexevig_newiluzilinewa_vawapixali.pdfIn PDF document text
- https://samabuwe.weebly.com/uploads/1/3/0/7/130739499/dc5613a02b91.pdfIn PDF document text
- http://zetumitufam.mywebcommunity.org/30350285293.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4424637/normal_5fffcf00702f4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417312/normal_5fd5fe811f670.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4492892/normal_60173cf3b5f36.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4389095/normal_5ff5368bcc3ed.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420930/normal_5fd2e08e9098a.pdfIn PDF document text
- http://tosefabebiribow.scienceontheweb.net/netgear_wgr614_v7_firmware.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://3f9320ff-391d-49df-b192-c557e211a93c.filesusr.com/ugd/469aea_73c2eed86bb9467dbf60a40cf83a8024.pdf?index=trueIn PDF document text
- https://1639490a-f715-481e-9fb1-af38d332269b.filesusr.com/ugd/a59130_9b84730449f3425f91b45f26b2c073fe.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sevoga/1497510018.pdfIn PDF document text
- https://s3.amazonaws.com/kikunojulejuj/max_lucado_childrens_books_set.pdfIn PDF document text
- https://s3.amazonaws.com/sinadi/6403704672.pdfIn PDF document text
- https://0d3c4653-ec4b-4b04-9c20-59e348ba858e.filesusr.com/ugd/62200f_ef7a22f049704479958e446ba78798e1.pdf?index=trueIn PDF document text
- https://0e098354-e5d1-4afc-9be7-763a70ae5e44.filesusr.com/ugd/ef253e_e8496dc3969d442d9be7634d68663e9b.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_off0000ebed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBED | 5280 bytes |
SHA-256: 4480765e8c3fed8487a9937e023e44c69940eb96ac7d02919de142d5e86dc951 |
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font_01_sfnt_off0000fdb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDB5 | 11136 bytes |
SHA-256: c1e73faac4b8cd4539c7b951cdc682ca1f573a1826605a356063d8f79f92f2e9 |
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