Malicious PDF — malware analysis report

Static analysis result for SHA-256 e576ab4c99926797…

MALICIOUS

PDF

76.2 KB Created: 2021-03-15 10:57:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 9fc336ece4eb6f6feb7bbce10afb47ef SHA-1: 21bba35de5256d3ffd7aea193b8295bf7f531aef SHA-256: e576ab4c9992679746c57eecae50745f5774a80e3dda5b46ac0aaa5c7ff8939e
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL `https://soxebez.ru/wix?keyword=most+dangerous+lizards+ever` suggests a phishing or redirection attempt. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a malicious document designed to lead users to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://soxebez.ru/wix?keyword=most+dangerous+lizards+ever PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413363/normal_603a479769c8f.pdfIn PDF document text
    • http://mihetos.xyz/27726927163vlycs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502817/normal_602125cc23402.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459188/normal_5fcb123535fd1.pdfIn PDF document text
    • http://1xbets-reg.site/configuration_spanning_tree_protocol_cisco_switchesqhe51.pdfIn PDF document text
    • http://indital.fun/gafoximumavovijen2d3or.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388406/normal_5fcc00ec62e7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447271/normal_602e1cf79cf0d.pdfIn PDF document text
    • http://qwonder.space/cloud_computing_definition_in_computer_scienceb3exy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471719/normal_602660aea6056.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493916/normal_5fde1fdde471e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379959/normal_603c8557df75f.pdfIn PDF document text
    • http://deine-gabe.com/mega_trainer_experience_premium0ccr9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482216/normal_604b531221c96.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/aad0ad0d-9ece-41fb-ac16-35dddcb82399/girexafepumo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1af57287-f93b-4252-bd4c-bad732d03f27/weber_genesis_cast_iron_grates_which_side_up.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/292426ed-3865-40fa-a3e5-7f3a035625a7/audiolibros_jorge_bucay_cuentos_para_pensar.pdfIn PDF document text
    • https://s3.amazonaws.com/vatakefojunib/new_assamese_theatre_song_2019-_20.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3644ba49-6b06-4ebf-ac17-961c251c669a/28337880608.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/notify_and_fitness_for_mi_band_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/asmaul_husna_beserta_arti.pdfIn PDF document text
    • https://s3.amazonaws.com/paxunu/banner_saga_2_apk_revdl.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/free_template_bootstrap_dashboard.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/lowonolexupo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7d98752-d6a5-4d89-a3d8-850c26a5308a/on_green_dolphin_street_lead_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/poresi/fozeriviravaraseloto.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/lineage_2_eviscerator_guide.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.

FilenameKindSourceSize
font_00_sfnt_off0000edfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDFD 5108 bytes
SHA-256: acb010c5f7e790225244e1897bb2b4e910c1035cf1013436ae29c98e9210afee
font_01_sfnt_off0000ff86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF86 10600 bytes
SHA-256: 25411800dd5b61d2fedbe1a1a4a066127b8692f29f078b0a72615ca78074119e

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