Malicious PDF — malware analysis report

Static analysis result for SHA-256 80503f1848df41a6…

MALICIOUS

PDF

70.1 KB Created: 2021-02-18 06:01:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 450ade788df3d117cda7dc34c41ad6ac SHA-1: f9ac645a1306df343957a4c00910cc7c7fdf5107 SHA-256: 80503f1848df41a6d8e8c3444ea208f9ee916999ed704de5e80c253ad80ceb38
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=c179+study+guide+answers PDF link annotation
    • http://taxurofetizi.22web.org/christmas_anandam_album_songs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424689/normal_600a950aa930b.pdfIn PDF document text
    • http://webmastervlad.ru/levafakigufume81g.pdfIn PDF document text
    • https://cdn.sqhk.co/xubulozirod/ghghau6/66178857176.pdfIn PDF document text
    • http://kyhni.site/a1_accused_tamil_movie_free8g80z.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387582/normal_5ff192789f86d.pdfIn PDF document text
    • https://cdn.sqhk.co/talurelope/ig5Xjbg/nutavefavos.pdfIn PDF document text
    • http://jilet1.club/supraventricular_tachycardia_guidelines_ahaze8e3.pdfIn PDF document text
    • http://center-san.ru/babusagih4vc5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488137/normal_6009ded778868.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450147/normal_5fe55aed3d8a2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/apparel_industry_in_sri_lanka_2018.pdfIn PDF document text
    • http://momomalolo.epizy.com/nosql_database_design_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/nagudo/gahanna_oh_police_reports.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_off0000d4a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A1 5348 bytes
SHA-256: 1f00eb7a18df90a81fb6bccfbbedfb47172c3fae3a32da5a70846c2efa1a7bd9
font_01_sfnt_off0000e6ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6FF 10748 bytes
SHA-256: 39aeb85ec9697e1170a1d2553d7ac5d40d2b6c09465da670b08bb6a463b1c41f