Malicious PDF — malware analysis report

Static analysis result for SHA-256 17c4317731f86a40…

MALICIOUS

PDF

70.8 KB Created: 2021-02-13 15:26:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e2df92c58faf145452da74dd8ae6fa2f SHA-1: 138f5ed0882770305112e17aeafac5a654a4e9fd SHA-256: 17c4317731f86a406ff560ffd9e6ff34a4442864d400181986e400d03d017cec
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/wix?keyword=big+lots+survey+winners PDF link annotation
    • https://kokozorakozuwel.weebly.com/uploads/1/3/0/7/130775651/pazaduwijeni.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454040/normal_5fd641414dda9.pdfIn PDF document text
    • http://straponartist.com/pakemegigezokonjxehz.pdfIn PDF document text
    • http://ximasoj.22web.org/contributory_factors_to_reported_road_accidents.pdfIn PDF document text
    • http://itasummer.fun/citation_excel_spec_sheetggf67.pdfIn PDF document text
    • https://jabekidedur.weebly.com/uploads/1/3/1/6/131636775/poveruxetimutugiz.pdfIn PDF document text
    • https://cdn.sqhk.co/sujubowip/ibfhaih/men_s_champion_color_block_hoodie.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402478/normal_600fe056ee2a1.pdfIn PDF document text
    • http://leopards.space/flip_tumbling_apk_modihtb9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472491/normal_5fcd6c9b24e2a.pdfIn PDF document text
    • https://vutakajar.weebly.com/uploads/1/3/4/8/134896426/72eb53b38331.pdfIn PDF document text
    • https://mefiremen.weebly.com/uploads/1/3/0/7/130776246/buwurin.pdfIn PDF document text
    • http://logmeinnow.xyz/algebra_nation_workbook1znqx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fawogalupa.epizy.com/logistics_officer_interview_questions_and_answers.pdfIn PDF document text
    • http://mibobugaf.rf.gd/hybris_cms_template.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_off0000d942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD942 4944 bytes
SHA-256: 0aa383a841acb32e9284f2b18aaa889c7fb9fe422ff8e92241ad01a69b592eae
font_01_sfnt_off0000ea48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA48 10604 bytes
SHA-256: f9d411b73350aa6174bf217401374cfd95a0a1b894496d56022c894781bc12aa