MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ML classifiers and ClamAV. It contains a large number of external links, many pointing to disposable hosting services, suggesting a link farm or SEO manipulation scheme. One of the embedded URLs, https://kuzutuzo.ru/strik?utm_term=annual+leave+request+letter+template, is likely part of the lure. The PDF structure and embedded content indicate it's designed to redirect users to these external resources.
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=annual+leave+request+letter+template PDF link annotation
- https://fanesorugetefex.weebly.com/uploads/1/3/1/3/131383934/649511.pdfIn PDF document text
- https://pavadugubuwab.weebly.com/uploads/1/3/4/3/134309483/rasufosus.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454562/normal_605ef6bac89fb.pdfIn PDF document text
- https://xoxomedeze.weebly.com/uploads/1/3/5/3/135308121/bokemis.pdfIn PDF document text
- https://vibofizetukoz.weebly.com/uploads/1/3/0/9/130969748/5b88dc0c5915.pdfIn PDF document text
- https://xuwobonamufaguw.weebly.com/uploads/1/3/5/3/135315698/turukanus-lezekonuzaro-rupaxupanusi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4409095/normal_5fdff1b91d4ed.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4461249/normal_5ffe468929b48.pdfIn PDF document text
- https://sojabejob.weebly.com/uploads/1/3/4/8/134890412/varozuvogajor-gagemuna-jepidagakejereb-tinipanaju.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426269/normal_5fd889a516e40.pdfIn PDF document text
- https://govobozof.weebly.com/uploads/1/3/5/3/135315692/602a08d539419.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4385424/normal_5fec237af066c.pdfIn PDF document text
- https://viwoxewadekam.weebly.com/uploads/1/3/4/0/134016770/suvelafakuzazagufi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4451229/normal_5ff8af2d5c976.pdfIn PDF document text
- https://nutikatike.weebly.com/uploads/1/3/4/6/134601603/58591c9.pdfIn PDF document text
- https://bododomeliba.weebly.com/uploads/1/3/1/4/131408614/jadikekukigun.pdfIn PDF document text
- https://kejuzeke.weebly.com/uploads/1/3/4/4/134456394/jajaxavu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4468812/normal_5fd966c56fdf3.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/bejikefowu/tivuj.pdfIn PDF document text
- https://s3.amazonaws.com/godoremitiwuja/85553580239.pdfIn PDF document text
- https://s3.amazonaws.com/kafises/addition_worksheets_printable.pdfIn PDF document text
- https://s3.amazonaws.com/xokebore/vixiwuzelimiguvolu.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000faa8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAA8 | 5140 bytes |
SHA-256: 0bbc96bb69d990316ec93c8d53f563fef7e1d9b049da742711e4914b793817c7 |
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font_01_sfnt_off00010c19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C19 | 10836 bytes |
SHA-256: 97079036c7695f64975f89573ecad567b3abebbeccf283245a657c5fad30a929 |
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