Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbe75ae76245c283…

MALICIOUS

PDF

65.5 KB Created: 2021-05-09 05:05:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ca55650acdb831d6f08b8352b4ed384 SHA-1: f386d7999a4c196129d55e41a6f1ffd89d0651ce SHA-256: fbe75ae76245c2837192a03a85a983aef666a5a1b1ffde4cde18f5e51fe1fb7e
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, with one specifically identified as part of a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics strongly indicates malicious intent related to external resource engagement.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6087

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One 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://vilenefex.ru/strik?utm_term=is+anyone+afraid+of+losing+me+quotes
    • https://static.s123-cdn-static.com/uploads/4423427/normal_5fcaa5b2c049e.pdf
    • https://zawibovime.weebly.com/uploads/1/3/2/6/132681883/4885527.pdf
    • https://filekudop.weebly.com/uploads/1/3/4/0/134017403/bawuvunalele-nanelavusivo-jupexe.pdf
    • https://pulamawuba.weebly.com/uploads/1/3/0/8/130873907/negugajalupo_jijimanigak_xudemi_jijinak.pdf
    • https://lepovomika.weebly.com/uploads/1/3/4/7/134701686/worarexamabubinevam.pdf
    • https://xuvakaxatal.weebly.com/uploads/1/3/1/0/131070170/5901dd9.pdf
    • https://gesunujas.weebly.com/uploads/1/3/4/5/134509411/barufejafopitatezu.pdf
    • https://cdn.sqhk.co/lomasamube/fjaidjg/nerifufebabaru.pdf
    • https://cdn.sqhk.co/kebabefepu/ihkcGKL/streamlabs_vs_obs_live.pdf
    • https://static.s123-cdn-static.com/uploads/4382790/normal_5fc8303778661.pdf
    • https://cdn-cms.f-static.net/uploads/4483839/normal_604a7a39cfcde.pdf
    • https://molawaxurot.weebly.com/uploads/1/3/4/6/134699933/7845588.pdf
    • https://lakerevuko.weebly.com/uploads/1/3/4/6/134654656/kazinukud.pdf
    • https://uploads.strikinglycdn.com/files/e263c692-db18-4b86-95f8-417107586c96/what_temperature_does_a_food_dehydrator_work_at.pdf
    • https://s3.amazonaws.com/sugosubexez/tamil_love_album_songs_wapwon.pdf
    • https://s3.amazonaws.com/fobupojowojon/30577956998.pdf
    • https://uploads.strikinglycdn.com/files/af7b54d6-67f1-4726-8534-f6eb98fb67cf/hp_officejet_pro_x576dw_service_manual.pdf
    • https://uploads.strikinglycdn.com/files/79434beb-4d95-42ca-9609-87d8e4e78b02/para_que_sirve_el_te_de_manzanilla_con_limon.pdf
    • https://uploads.strikinglycdn.com/files/47db1067-eeb1-4871-8f01-d46489e3857c/80586131745.pdf
    • https://s3.amazonaws.com/xepululejiwof/48540457572.pdf
    • https://s3.amazonaws.com/bogijexu/pabuweg.pdf
    • https://uploads.strikinglycdn.com/files/07a787bb-f2f2-4f89-b4d0-169196cb431c/96952765659.pdf

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