MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous embedded links to external websites, many of which are hosted on disposable domains or appear to be part of a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. The primary URL, https://pelibifir.ru/strik, suggests a redirection mechanism to potentially malicious content or advertising.
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=english+literature+books+made+into+movies PDF link annotation
- https://cdn-cms.f-static.net/uploads/4463810/normal_6019b9d9892d1.pdfIn PDF document text
- http://kewisanoxiv.66ghz.com/hillsborough_county_schools_report_card_schedule_2018.pdfIn PDF document text
- http://xukulos.iblogger.org/85031379784.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413228/normal_5fe9628d3be85.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4479718/normal_6032a0e78d1e1.pdfIn PDF document text
- http://comforfemj.fun/what_is_the_value_of_cos1800mqx7x.pdfIn PDF document text
- http://naturebiolog.space/surah_yaseen_ka_wird_e_mubeen8tt2t.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://wulesubutufazaw.epizy.com/quebec_topographic_map.pdfIn PDF document text
- https://7ed754b6-a209-4558-9281-0032c7ee8ade.filesusr.com/ugd/4329d7_3c405b9778344e0eb9bb514bf18112c9.pdf?index=trueIn PDF document text
- https://6d1a2d78-ebd2-4140-94a0-411197be5b5f.filesusr.com/ugd/88ff89_342b3b059e0746a790cd289cadc92b4b.pdf?index=trueIn PDF document text
- https://24d1f61b-f5c5-4d2f-8180-62589f44e8d8.filesusr.com/ugd/eed56f_0569ddc9ee334f878680416bd72b9469.pdf?index=trueIn PDF document text
- https://8c805f22-5240-4a8e-9b4d-8499607ff1fc.filesusr.com/ugd/76156b_ead0260c335447a399a1e4451149b72b.pdf?index=trueIn PDF document text
- https://b3e719cc-30df-460f-a5cd-d2fa480fcfac.filesusr.com/ugd/b2b6a5_29a739c110584e97bd1f32e1f5a6f019.pdf?index=trueIn PDF document text
- https://320f262d-053d-461a-9009-498fa3b044f5.filesusr.com/ugd/8e680a_8493317425eb45e7b83410739564de70.pdf?index=trueIn PDF document text
- https://e2685184-9bcc-4d63-b126-5f7cf6655de3.filesusr.com/ugd/267f13_f91a848f77664a0498f2d9457edba9f2.pdf?index=trueIn PDF document text
- http://xawatutosewo.epizy.com/1244869833.pdfIn PDF document text
- https://2e907eb7-0cdb-46e5-a4de-ff0e34d1b96e.filesusr.com/ugd/7ea2c5_7b92c31826804a5a9af5aec3fcc05b2b.pdf?index=trueIn PDF document text
- http://zitoveruvet.epizy.com/wuzogevudakopi.pdfIn PDF document text
- http://dujawupiraxep.rf.gd/23566304856.pdfIn PDF document text
- http://wewonak.rf.gd/how_to_connect_presonus_eris_e3_5_to_audio_interface.pdfIn PDF document text
- http://pojotew.epizy.com/disable_developer_options_android_9.pdfIn PDF document text
- http://xasaduditomup.epizy.com/34362211724.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_off00017388.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17388 | 5460 bytes |
SHA-256: 472ad9e17af4ce7ef9b965d2ac39613169a45437a555e14922c1e2d68e78b01c |
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font_01_sfnt_off000185f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x185F7 | 10688 bytes |
SHA-256: 64a8e18f913f8f5577a295410c8187e94f3f56f424e3db823710df1f422037f3 |
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