MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains numerous embedded URLs pointing to external PDF documents, suggesting an attempt to manipulate search engine rankings or distribute further malicious content. The heuristic PDF_SEO_LINK_FARM specifically highlights the mass external linking behavior.
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://botokaw.ru/strik?utm_term=formula+for+calculating+sum+of+interior+angles+of+a+polygon PDF link annotation
- http://life-news.tech/formula_for_similar_trianglesnqi51.pdfIn PDF document text
- https://cdn.sqhk.co/pumibavi/mhciEid/gimunizozitegetonipifa.pdfIn PDF document text
- https://cdn.sqhk.co/sulubejes/0ulsr2X/jasuledipe.pdfIn PDF document text
- http://webdefilmizle.com/52403739203i8yio.pdfIn PDF document text
- https://cdn.sqhk.co/webegodebav/c8pjhGa/zombie_themed_birthday_party_ideas.pdfIn PDF document text
- https://murasujudadalox.weebly.com/uploads/1/3/5/3/135338307/punewega.pdfIn PDF document text
- https://basapozixuw.weebly.com/uploads/1/3/4/7/134701575/jufuzenofe_mireninerebi_wivutosixus_jabozoj.pdfIn PDF document text
- http://1xbet-registr.site/road_to_crisis_on_infinite_earths_episode_4lluq2.pdfIn PDF document text
- https://tepaxomiro.weebly.com/uploads/1/3/6/0/136019937/324513.pdfIn PDF document text
- http://gakmancreatures.ru/how_to_reprogram_viper_car_starter8vx9k.pdfIn PDF document text
- http://max-lifting.store/how_to_play_cards_against_humanity_on_zoom_with_friends27lrf.pdfIn PDF document text
- http://info-pages.ru/catholic_encyclopedia_vol_1qz4t7.pdfIn PDF document text
- https://mefanajumajadip.weebly.com/uploads/1/3/1/6/131637152/5039771.pdfIn PDF document text
- https://lumuvimusu.weebly.com/uploads/1/3/4/7/134719948/solugefitu.pdfIn PDF document text
- https://nenovalo.weebly.com/uploads/1/3/2/7/132712003/kimexib.pdfIn PDF document text
- https://pekiwuvigefarov.weebly.com/uploads/1/3/4/7/134766825/53b739f0c.pdfIn PDF document text
- https://xugimitedekilim.weebly.com/uploads/1/3/1/4/131482884/34c882abb6.pdfIn PDF document text
- https://serataxufo.weebly.com/uploads/1/3/1/6/131606193/naguzuvuz.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/zobuwubedak/2924823730.pdfIn PDF document text
- https://s3.amazonaws.com/dafumuxitupav/46007880834.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_off0000ee9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE9B | 5392 bytes |
SHA-256: 80db013639eeae30d7a330065dc59ade7f3e65d8b4db15548a9b59bd113e948c |
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font_01_sfnt_off000100e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100E8 | 11008 bytes |
SHA-256: 2c216ab75c1c154a41078f56292cf68551c707f4cfeac8b9c2336bf1cc240fb8 |
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