Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cbe64bd17ce48e1…

MALICIOUS

PDF

65.4 KB Created: 2021-02-21 22:18:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d29a91021471efd8443c048cef6c5bb8 SHA-1: 0681fa4d5cbf2aad69ac148962d62850c2d608f5 SHA-256: 9cbe64bd17ce48e1256ab996bd57d5ac5f26e124aebbc34fc3dd1163a4f68ca6
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=eso+culture+clash+choice In PDF document text
    • https://static.s123-cdn-static.com/uploads/4490266/normal_5ff597bb5ca5d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486051/normal_60254974d0b31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367940/normal_5fdbe8fa82ddb.pdfIn PDF document text
    • https://cdn.sqhk.co/bamopilu/jd2Eogd/692606555.pdfIn PDF document text
    • https://cdn.sqhk.co/pazakazagoz/Qjasyih/gobenubidedede.pdfIn PDF document text
    • http://edayafar.xyz/android_pie_os_for_pcugpo6.pdfIn PDF document text
    • http://sokuzise.iblogger.org/kindle_weight_loss_pills_femme_forme.pdfIn PDF document text
    • http://help-feedback-amzn6.xyz/amcat_quantitative_aptitude_questions_and_answerslftq2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388405/normal_6009a1d666ab1.pdfIn PDF document text
    • http://about-igsupport.com/52550322500k809o.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475588/normal_601e7e489d644.pdfIn PDF document text
    • https://cdn.sqhk.co/melipetoluf/ihjietF/voice_changer_for_xbox_app_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487208/normal_5ff8617bf095b.pdfIn PDF document text
    • http://winoorama.site/pisezekajaxavetojeme61nyn.pdfIn PDF document text
    • http://construt.site/discussion_questions_to_kill_a_mockingbird3wyi5.pdfIn PDF document text
    • http://sluzhba1.net/vajivajugarivisokqyday.pdfIn PDF document text
    • http://servicesforsupport.com/minitexuarirf.pdfIn PDF document text
    • https://cdn.sqhk.co/zasemewiti/cTif3yQ/lock_screen_number_briefcase_lock_screen_pattern_ideas.pdfIn PDF document text
    • http://timecodes.net/nidegemb3jiz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sewugobavi.rf.gd/automatic_call_recorder_apk_pure.pdfIn PDF document text
    • http://kesotufujurox.rf.gd/bloomfield_nj_police_reports.pdfIn PDF document text
    • http://zumewozuzetarun.epizy.com/35996356562.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_off0000c506.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC506 4844 bytes
SHA-256: 36fe20601c16102fefe697be352f9f40f384d0301cdc00c6caa77696a8e3cb62
font_01_sfnt_off0000d576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD576 10360 bytes
SHA-256: f35d5151d8dc857f4792a81aa893d7a74fb93fed6af5748a6099f464a94fc3e2