MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a significant number of external links pointing to disposable domains, a common tactic for SEO spam or to host malicious content. Heuristics like PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM strongly indicate this behavior. The ML classifier and ClamAV detection further confirm its malicious nature, likely involving exploitation or phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://leonvi.ru/123?utm_term=what+is+the+law+of+obligation+and+contracts PDF link annotation
- http://discovljzg.fun/list_of_important_inventions_and_discoveriess45ol.pdfIn PDF document text
- https://cdn.sqhk.co/vaxarogajib/qKXgcbo/spinal_stenosis_and_hip_flexor_pain.pdfIn PDF document text
- https://cdn.sqhk.co/xutazazo/ghgeigj/pro_pinball_sega_saturn.pdfIn PDF document text
- http://smm-target.ru/cuisinart_convection_bread_maker_cbk-200c3lys9.pdfIn PDF document text
- https://cdn.sqhk.co/jabosuve/nIiiOCR/30460372588.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489848/normal_6027983c78016.pdfIn PDF document text
- https://cdn.sqhk.co/xufaribo/2v4eQRl/hd_wallpapers_1920x1080_niagara_falls.pdfIn PDF document text
- https://cdn.sqhk.co/visobipibe/idhgiaa/81853739058.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413835/normal_5fc6a9f7e72d9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459034/normal_6030648d909d4.pdfIn PDF document text
- http://luminar2-download.xyz/68492996546mn4w9.pdfIn PDF document text
- https://pafajawu.weebly.com/uploads/1/3/2/6/132682051/nufamav_xepuguxib_xijubunud_dajesidiseku.pdfIn PDF document text
- http://salopkisa.website/baal_veer_episode_130duwlu.pdfIn PDF document text
- https://zeleloda.weebly.com/uploads/1/3/0/7/130776222/fd4ec6b.pdfIn PDF document text
- https://kuboteradaragi.weebly.com/uploads/1/3/1/4/131482952/zizuxuwiremi.pdfIn PDF document text
- https://cdn.sqhk.co/jotenitix/jjIo8ih/pexewasatunoref.pdfIn PDF document text
- https://cdn.sqhk.co/lesasafo/igifyZe/wafales.pdfIn PDF document text
- https://cdn.sqhk.co/xexisini/jVgjvia/78570441375.pdfIn PDF document text
- https://cdn.sqhk.co/fezusife/dhfyEsp/wemuzepibozuxaseloxafax.pdfIn PDF document text
- https://cdn.sqhk.co/sifalavuxozo/icojfif/car_racing_games_online_poki.pdfIn PDF document text
- https://rikelakejif.weebly.com/uploads/1/3/4/8/134885243/demaxif.pdfIn PDF document text
- http://topstop.site/lotelotejegudo47x8.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_off0000fa54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA54 | 5528 bytes |
SHA-256: ec0e3d57a6249d277babc740384de58352ebffad56779a211477d8a95b4a679c |
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font_01_sfnt_off00010d34.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D34 | 10896 bytes |
SHA-256: d440a7c505dc8f3ab3501a3ec1c96d5facb3fa001c012b671c54588d1441acf0 |
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