Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e3f029591ee7f16…

MALICIOUS

PDF

68.7 KB Created: 2021-02-13 20:44:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 580d122d44bbe57302fb6243740b851d SHA-1: abaafeacd2c8aa1dc8f12651fb1418af0214e6e4 SHA-256: 1e3f029591ee7f163f01f863eb9b5b273c80cfc267aa7c74ede3c8c38cb73883
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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
  • 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://jacksth.ru/123?utm_term=logan+west+swim+club PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4494432/normal_6014e46fdc348.pdfIn PDF document text
    • https://cdn.sqhk.co/jovowosifo/giifDhf/85933277952.pdfIn PDF document text
    • http://fupofejoja.22web.org/zusifoxoposovunigij.pdfIn PDF document text
    • http://fodamibokaf.66ghz.com/thyroid_test_sample_report.pdfIn PDF document text
    • http://gajikabe.iblogger.org/deloitte_digital_transformation_framework.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376369/normal_600b3c15532d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405443/normal_5fdbc9624607b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384144/normal_5ff1af724f129.pdfIn PDF document text
    • http://naxiramomamaz.66ghz.com/free_powerpoint_templates_for_sunday_school.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bajejefi.epizy.com/5th_grade_math_test_questions_and_answers.pdfIn PDF document text
    • http://xavobuwog.epizy.com/guidelines_for_blood_donor_selection_naco.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/mudedewoxa.pdfIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/64436316598.pdfIn PDF document text
    • http://kurejaj.epizy.com/ib_business_management_case_study_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/56074960302.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/druid_pathfinder_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/77947863319.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/tujijaripurujawuvivufu.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_off0000cf2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF2A 5196 bytes
SHA-256: 2f1dec6edf0d78386aa3cb63f017e5b6e44248b769f64ea3c33233c2a9152d82
font_01_sfnt_off0000e0e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E8 11024 bytes
SHA-256: 261efc185d94687daf2f90327f31d7b52379cf9de77399154ff93a6c9a51c94b