MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains a large number of external links, indicating it functions as a link farm. Some of these links point to disposable hosting and utilize UTM parameters, suggesting a potential for SEO manipulation or redirection to malicious sites. No scripts were extracted, but the presence of numerous external URLs is a strong indicator of malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://nipisod.ru/strik?utm_term=tipos+de+grupos+sociales+primarios+secundarios+y+terciarios PDF link annotation
- https://cdn.sqhk.co/lerapuraroke/hbjzthd/black_widow_trailer_reaction.pdfIn PDF document text
- http://mudikovarew.mygamesonline.org/is_the_5th_wave_a_true_story.pdfIn PDF document text
- https://cdn.sqhk.co/bujasugawo/sjjghhh/sabufi.pdfIn PDF document text
- https://cdn.sqhk.co/fuwunikuneg/dO1hcgi/molokeg.pdfIn PDF document text
- https://gopogaxewose.weebly.com/uploads/1/3/4/0/134013169/zijazuvuke.pdfIn PDF document text
- https://cdn.sqhk.co/sewizefaxiki/iRhiWOd/ribebagodadexolobebe.pdfIn PDF document text
- https://cdn.sqhk.co/baluwofuk/hegcRiE/clash_of_clans_war_attack_strategy_th10.pdfIn PDF document text
- https://cdn.sqhk.co/kobewudojuvo/ijAPOK7/comedy_central_directv.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452834/normal_6062ddd7e2372.pdfIn PDF document text
- https://cdn.sqhk.co/malevevipali/DhbUsgh/wimokufesazitegivomunu.pdfIn PDF document text
- https://cdn.sqhk.co/wusezofetib/sXhf4ig/dojukef.pdfIn PDF document text
- https://cdn.sqhk.co/bitowiso/l8xghVh/cake_decorating_supplies_shops_near_me.pdfIn PDF document text
- https://cdn.sqhk.co/tifomogoketu/D2Bib7L/rise_of_kingdoms_city_hall_upgrade_requirements.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4453129/normal_5ff893ebba78c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376849/normal_602f0b800f86d.pdfIn PDF document text
- https://nipoxumafoji.weebly.com/uploads/1/3/4/7/134717148/nudakubikesi-laregipenew.pdfIn PDF document text
- http://ridovise.sportsontheweb.net/best_annotator_apple_pencil.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4382960/normal_60026efb26fd5.pdfIn PDF document text
- http://biwiroxefamir.mywebcommunity.org/37196444882.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4480893/normal_60007a510b3a3.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://855e1e5b-0daf-4dce-aa73-dfad2bfec5df.filesusr.com/ugd/ced2dc_dd06648e640d4c4ebe5ed5e237cfa94b.pdf?index=trueIn PDF document text
- http://futikuzita.onlinewebshop.net/74006635512.pdfIn PDF document text
- https://44034db3-6cdd-4729-adf3-7ccd6afcf354.filesusr.com/ugd/9fe9cc_aae0fab71daa434ba466b581cf1e5ed5.pdf?index=trueIn PDF document text
- https://6f12065f-c45d-410c-b048-6ec23fb2b810.filesusr.com/ugd/02ccf7_0c2347b2329a44cbbe7b2b4c2f8b7c81.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_off0000ff2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF2F | 5444 bytes |
SHA-256: 5826288d701d3610e9503e1570fa6942d8e0afebfc83582056fd44ef86ed70b8 |
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font_01_sfnt_off000111a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111A2 | 12360 bytes |
SHA-256: 46498cc2a1ecb0e970b06dbf23067b842e988009a047931e8aef61203a42bb60 |
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