Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3ea697c72ef48af…

MALICIOUS

PDF

76.6 KB Created: 2021-03-16 10:41:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1273e34a8962050f136b9e655860745 SHA-1: 7f5f42aaeb17c3f86a68e90e77215abcfd590ca1 SHA-256: c3ea697c72ef48afb8f4a77411cf96963d882b921dddce545aaf61f8dfd61870
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The embedded URL and numerous other URLs point to malicious domains, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains keywords related to 'judiciary family court forms' which likely serves as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • 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://mezovuduw.ru/wix?keyword=ri+judiciary+family+court+forms
    • http://woxagaxizi.22web.org/98361165276.pdf
    • http://nabavawuzafurur.mygamesonline.org/silawolivif.pdf
    • https://static.s123-cdn-static.com/uploads/4447278/normal_5feba0701a28f.pdf
    • http://muvibigi.22web.org/chalkboard_menu_template_word.pdf
    • https://cdn.sqhk.co/jurugaguvedu/hghjpYh/a_robertson_plumbing_supplies_ltd.pdf
    • https://cdn.sqhk.co/wigalefu/jflgAia/wufenapetete.pdf
    • https://cdn-cms.f-static.net/uploads/4365546/normal_5fe6e8fc8e389.pdf
    • http://kerosijuvibeg.scienceontheweb.net/tilijezapuxubarevegopaz.pdf
    • https://cdn-cms.f-static.net/uploads/4480589/normal_6043b0307a0da.pdf
    • https://cdn.sqhk.co/ragojagef/gNQaJ6k/sokuwujudopumodipavo.pdf
    • https://cdn.sqhk.co/teforoke/Ojshgx2/bad_piggies_field_of_dreams_hack_download.pdf
    • https://cdn-cms.f-static.net/uploads/4392867/normal_60164edd11152.pdf
    • http://juponuziwotaga.mywebcommunity.org/how_to_enter_serial_number_for_adobe_acrobat_xi_pro.pdf
    • http://zofazosedam.iblogger.org/piano_sheet_music_editor.pdf
    • https://cdn-cms.f-static.net/uploads/4376359/normal_604f7e39a8c8d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/5ea61869-5742-491d-8e81-758edb228615/free_autocad_reader_for_windows_10.pdf
    • https://uploads.strikinglycdn.com/files/caf3ae58-ab9c-4136-b964-51ea68c9a824/what_literary_theory_is_noli_me_tangere.pdf
    • https://uploads.strikinglycdn.com/files/6a2dfc7b-a286-47af-9149-687640ff84ea/walmart_pharmacy_phone_number_in_independence_kansas.pdf
    • https://uploads.strikinglycdn.com/files/b548a0d3-7030-4cad-b6d7-db770667bc5b/58336854285.pdf
    • https://uploads.strikinglycdn.com/files/5ad5c888-f268-4847-ab57-6d4fc2bee197/different_types_of_school_syllabus_in_india.pdf
    • https://uploads.strikinglycdn.com/files/5f030fa8-3590-4b1a-91f2-65363cc364e0/peperew.pdf
    • http://kowejanaf.rf.gd/fagudibanu.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee8c.bin
f533663caf4ec7b57eee544fa2fb54eaa0e47d644120ff546b41a94eb739843e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE8C 5352 bytes
font_01_sfnt_off000100c5.bin
5b36cbb11dd3c4f8ef0ee6d798e78b0198218af207b246fe6e270b8154f2fdf2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100C5 10632 bytes

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