Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2c94620569b06c7…

MALICIOUS

PDF

71.5 KB Created: 2021-02-20 09:43:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8333522519b048983b728b19b7705bdc SHA-1: 5b71528713b645dd01145a971a9b3fa58ef586ab SHA-256: b2c94620569b06c7da4ffb3b943c0d1d75e2fc45b5d55c009884e21f71d74754
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=ffiv+free+enterprise+tracker PDF link annotation
    • http://bnl-jobs.com/90310755452q9i01.pdfIn PDF document text
    • https://cdn.sqhk.co/gotakavapu/idnGMif/kuporasulanusazit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447646/normal_5fd657b8068e4.pdfIn PDF document text
    • http://jotelefaxomawut.22web.org/donegusiburupubekeg.pdfIn PDF document text
    • http://jogemijafiw.22web.org/achar_recipe.pdfIn PDF document text
    • https://cdn.sqhk.co/lunajevon/hb4gihc/29455119471.pdfIn PDF document text
    • https://cdn.sqhk.co/nonagidux/NAihZAX/fexuvogalaka.pdfIn PDF document text
    • http://korecos.ru/47773201658h1ib1.pdfIn PDF document text
    • https://cdn.sqhk.co/gavezexu/7hjT0IM/wopefukuxakotiditezeb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413121/normal_60031c991ebea.pdfIn PDF document text
    • http://theharaka.online/gamuwawudigaruzuyf7mg.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/timeziso/brewster_ma_weather_report.pdfIn PDF document text
    • http://mabaris.rf.gd/62435397620.pdfIn PDF document text
    • http://voranomozupit.epizy.com/gibutukejalilelibenidi.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_off0000dd4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD4F 5056 bytes
SHA-256: 9f46b5c8b4447e489e9df099a15482ef4e8c5bfdd4fd87a884cf3dbc5cb93293
font_01_sfnt_off0000eea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA1 10240 bytes
SHA-256: 650072b763566c5cefab9b41b3a1678d20b7cc173ea28592e9418451ed1b9785