Malicious PDF — malware analysis report

Static analysis result for SHA-256 88ca283a6f4c43fc…

MALICIOUS

PDF

42.1 KB Created: 2021-02-25 04:28:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: f105c26a243a72936118829eac9959dc SHA-1: 2fc955ab21e927c5b0eb3fcb3b9fb4cb8b24aa45 SHA-256: 88ca283a6f4c43fcc4c6a93f34a65a1e3aee3a9523829fdb7d450ea6bab72b2b
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF that contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8150

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://crophysi.ru/award?keyword=baptism+of+fire+used+in+a+sentence PDF link annotation
    • http://sigisuzuk.getenjoyment.net/12340758557.pdfIn PDF document text
    • http://roxelejabojafe.scienceontheweb.net/33030340480.pdfIn PDF document text
    • http://xunajoza.22web.org/ajooba_full_movie_hd_720p.pdfIn PDF document text
    • http://crysety.xyz/79232825247nmkyi.pdfIn PDF document text
    • http://sevagawos.getenjoyment.net/the_lion_the_witch_and_the_wardrobe_series_movies.pdfIn PDF document text
    • https://cdn.sqhk.co/jowapezo/je7pVhj/special_forces_group_2_para_pc_download.pdfIn PDF document text
    • http://bitjoms.xyz/arya_2_telugu_movie_songs7qwe.pdfIn PDF document text
    • http://dfds.in/what_are_the_8_rhetorical_modesmwrum.pdfIn PDF document text
    • http://samyog.ru/what_is_subduction_and_at_which_type_of_plate_boundary_does_it_occurd73hq.pdfIn PDF document text
    • http://sobakin.space/pasos_para_resolver_el_cubo_rubiktafov.pdfIn PDF document text
    • http://dfwshootersupply.com/98061726502v511q.pdfIn PDF document text
    • http://trokot-tonirovka.online/669730917485mf3e.pdfIn PDF document text
    • http://gabutetidik.22web.org/middle_class_ambala_hd_video_songs.pdfIn PDF document text
    • http://pijirikuzi.iblogger.org/59691355844.pdfIn PDF document text
    • http://onatural.space/109182374357rujq.pdfIn PDF document text
    • http://lenadupubop.rf.gd/study_and_master_physical_science_grade_10_teachers_guide.pdfIn PDF document text
    • http://tososite.onlinewebshop.net/bodyweight_exercises_for_arm_strength.pdfIn PDF document text
    • http://kulixuvomewono.epizy.com/monoblastic_leukemia_case_report.pdfIn PDF document text
    • http://vomigok.rf.gd/criminal_law_definition_australia.pdfIn PDF document text
    • http://kasaliduv.epizy.com/bitmain_antminer_s9_firmware.pdfIn PDF document text

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