MALICIOUS
246
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. It uses brand-impersonation credential phishing. 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 0.9998
Heuristics 7
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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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Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://kalaxokesipak.weebly.com/uploads/1/3/4/8/134888683/6444849.pdf.
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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://inwebjor.ru/pbw?utm_term=avira+free+vpn+for+android PDF link annotation
- https://static.s123-cdn-static-d.com/uploads/4489992/normal_60b79207d7064.pdfIn PDF document text
- https://kalaxokesipak.weebly.com/uploads/1/3/4/8/134888683/6444849.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420230/normal_605309ef8608e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366327/normal_606ab223f3f49.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411252/normal_6067791c5a1da.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365628/normal_5fd61c9b484b6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4421468/normal_5ff3c2a6ec4d4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4463009/normal_5ff572f4b0841.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366324/normal_600b8ffc8e5ad.pdfIn PDF document text
- https://retagavit.weebly.com/uploads/1/3/4/3/134363188/nalusofigobigidolune.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366351/normal_604e1da307bb7.pdfIn PDF document text
- https://gagufivelorifig.weebly.com/uploads/1/3/4/5/134596616/d3ba6e6d73040e0.pdfIn PDF document text
- https://fugomunufu.weebly.com/uploads/1/3/4/5/134586131/4983487.pdfIn PDF document text
- https://viduxetejogat.weebly.com/uploads/1/3/4/6/134600114/58109ae03.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4451045/normal_5ff7ff4b3f6d9.pdfIn PDF document text
- https://rebageronamit.weebly.com/uploads/1/3/0/7/130775484/b7fcfd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450152/normal_606cc21cdb96d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470552/normal_5fd77e92b9fef.pdfIn PDF document text
- https://malodarugamizo.weebly.com/uploads/1/3/4/8/134853004/3695016.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495696/normal_6069bd570c2c4.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off00017b49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17B49 | 4876 bytes |
SHA-256: f8198486d939629355a7cfedd46da08decd0745864734b54f52e32911821dce5 |
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font_01_sfnt_off00018bf8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18BF8 | 10732 bytes |
SHA-256: 652ad0963ac5992de511cb28346fe275f18c41d3ecbc567bd0cddcf496db09d1 |
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