Malicious PDF — malware analysis report

Static analysis result for SHA-256 6abbe23ac5e6fbe8…

MALICIOUS

PDF

71.3 KB Created: 2021-02-14 16:53:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6cde13f31032c3c23479447b3e188016 SHA-1: 5b4d454590b669c19c0a5ae767022dd475cecbb3 SHA-256: 6abbe23ac5e6fbe8341b58525a3f4b336190a3a9a192faf99274cdc8366e3cb1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://seumenha.ru/wb?keyword=cabarrus%20county%20fair%20entry%20forms PDF link annotation
    • https://siwevamad.weebly.com/uploads/1/3/1/8/131871433/levurotigonug-pevivisekawuza-suzesaforup-gazolibip.pdfIn PDF document text
    • https://cdn.sqhk.co/noxibogalu/gFQhdym/bimibowedov.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469623/normal_5fea426aa84c9.pdfIn PDF document text
    • https://fezowekufeda.weebly.com/uploads/1/3/3/9/133999429/9850159.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458622/normal_601b7a96302ee.pdfIn PDF document text
    • https://cdn.sqhk.co/tebefaravuz/ipalgcB/benegomibovixutew.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446400/normal_5fcbfb702a2cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415326/normal_5fefee563c745.pdfIn PDF document text
    • https://junimadegerozo.weebly.com/uploads/1/3/4/0/134096607/nefajisiwesewu.pdfIn PDF document text
    • https://sofamilases.weebly.com/uploads/1/3/5/4/135401016/02efad2723a102e.pdfIn PDF document text
    • https://dezuvatag.weebly.com/uploads/1/3/4/6/134667454/f93258.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413369/normal_6023777782bb6.pdfIn PDF document text
    • https://dofemavuxowag.weebly.com/uploads/1/3/0/7/130739836/beziriw_fonavej_noridiferatu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443809/normal_60160e3a4be28.pdfIn PDF document text
    • https://kokezixunilo.weebly.com/uploads/1/3/4/0/134096179/e819be1a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408177/normal_5fd12451c7049.pdfIn PDF document text
    • https://cdn.sqhk.co/kawonidoza/w4Bjegh/61339863894.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dajidagetulawu.epizy.com/avery_template_for_word_22807.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_off0000d7e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E5 5140 bytes
SHA-256: 86d43275687104a5a1098545a459dd2ba1bfa34b791b6ad5f87f49fd71d4ab94
font_01_sfnt_off0000e952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE952 10948 bytes
SHA-256: dcbf66f468ba84f0c8a69e1d1666bdd31e74fddc134f7baa6829f705c31b445b

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