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, suggesting a link farm designed to redirect users. The primary URL, 'https://pelibifir.ru/strik?utm_term=what+does+4+beeps+mean+on+a+pc', is presented in a way that mimics a search result for a technical query, likely to trick users into clicking through to a malicious site. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with phishing or malware delivery.
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://pelibifir.ru/strik?utm_term=what+does+4+beeps+mean+on+a+pc PDF link annotation
- https://cdn-cms.f-static.net/uploads/4486969/normal_60103e0b91017.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4492871/normal_60230bca64ab8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4428052/normal_602af9c14f3ba.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489730/normal_603ebc611795d.pdfIn PDF document text
- http://latencfsrt.space/wunofekono1rebp.pdfIn PDF document text
- https://cdn.sqhk.co/sakupiraf/eNCichi/58074086083.pdfIn PDF document text
- https://cdn.sqhk.co/solalokazili/iwhfJgg/barcode_scanner_using_camera_android.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485457/normal_603418108df2a.pdfIn PDF document text
- https://kinumefiboposif.weebly.com/uploads/1/3/4/8/134865532/rawuli_gujuv_xazidomaboto_xefogirobovexa.pdfIn PDF document text
- https://melugazeso.weebly.com/uploads/1/3/1/1/131164252/bedonezujegojafazir.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4482424/normal_5fecc1e006065.pdfIn PDF document text
- http://contentmedialiteracy.com/groundwork_heavy_duty_oscillating_sprinkler_instructionsxrlto.pdfIn PDF document text
- https://raguwagoneneza.weebly.com/uploads/1/3/1/3/131384547/30cfa8783.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4371536/normal_5fed9218489e0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459175/normal_6038630e4d3d9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480579/normal_6025753689f0d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481053/normal_6024a7b3c8878.pdfIn PDF document text
- https://cdn.sqhk.co/puvegipuros/Ok7Dja7/island_experiment_table_with_a_map.pdfIn PDF document text
- http://smartcreditus.info/lugemo153v.pdfIn PDF document text
- https://gizizajavime.weebly.com/uploads/1/3/2/6/132695742/4edcf7c0c4d190.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010626.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10626 | 5168 bytes |
SHA-256: 336bb21505f255480be7e871f4b19840e30fdd5d8f30fc1ae381af050d693569 |
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font_01_sfnt_off0001179c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1179C | 11104 bytes |
SHA-256: ca172cd0a0c7fb51f4f46d807ac25e68efc729e7bd9c1deb7103b7139c43a4ec |
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font_02_sfnt_off00013d54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D54 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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