MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded URLs, with one pointing to a suspicious domain ('pelibifir.ru') that is likely used for phishing or to host malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further indicates a malicious intent by identifying a link farm on disposable hosting. ClamAV detection confirms the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.8274
Heuristics 4
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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 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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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=how+to+train+for+rock+climbing
- https://cdn-cms.f-static.net/uploads/4368468/normal_605db8fe80592.pdf
- https://cdn-cms.f-static.net/uploads/4500889/normal_6055330545b62.pdf
- https://cdn-cms.f-static.net/uploads/4366351/normal_60138698913e8.pdf
- http://fitnesspack.net/nilunavopotuvejegewipovamrwdd6.pdf
- http://help-lnstagramcopyrights-verify.com/watenlu14v.pdf
- https://static.s123-cdn-static.com/uploads/4374522/normal_5fce58f829a99.pdf
- http://kozevajalun.22web.org/rugby_bulking_up_program.pdf
- http://losinglotterynumbers.com/farkle_minkus_age16tly.pdf
- http://megantv.site/guided_reading_lesson_plans_for_chapter_books7lm92.pdf
- http://xixabibalusuzip.22web.org/migepata.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://dolufin.epizy.com/nesidawaminer.pdf
- https://c3bb11cb-ba02-405d-8462-2b4421b436e1.filesusr.com/ugd/4c7814_241cbfff05b94cbd909231e51e1142f8.pdf?index=true
- https://uploads.strikinglycdn.com/files/81ac82e9-30ee-4aa7-a029-676fc2a8b885/how_to_increase_a_shape_by_a_scale_factor.pdf
- https://s3.amazonaws.com/setigafat/android_symbol_appearing.pdf
- https://cff07a16-13b2-455b-8a78-148a75b158b4.filesusr.com/ugd/cda0c7_064eeaaf52d7499dbad82b8310de3f10.pdf?index=true
- https://uploads.strikinglycdn.com/files/5e079831-7338-44b9-96dd-90cd457c9437/nakewovotisovesul.pdf
- https://s3.amazonaws.com/xofalepelala/autocad_dwf_viewer_free_mac.pdf
- https://uploads.strikinglycdn.com/files/91991202-0321-4d37-a880-6dd0a465ecb0/98958254462.pdf
- https://uploads.strikinglycdn.com/files/d078dabf-e77d-4279-b81b-ba4a11c8b535/matadokowud.pdf
- https://uploads.strikinglycdn.com/files/146e22fc-d725-4b9f-9d1c-0688b1c0be2c/hp_laserjet_p3015_printer_51.10_error.pdf
- https://677e6977-fc43-48b2-ac81-16e478c8573b.filesusr.com/ugd/3750c2_b7fb58f4957d4016b0a187363a7808b4.pdf?index=true
- http://scripts.sil.org/OFL
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f441.bin7007768be3fda5f2d04e68392acb7b25cf7d9ad16de85692ce0e1fdeedb014e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF441 | 4948 bytes |
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