Malicious PDF — malware analysis report

Static analysis result for SHA-256 e47d57edb66ce777…

MALICIOUS

PDF

73.2 KB Created: 2021-02-21 20:44:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ebdaabbb04e81f90b071f398d9c1ca55 SHA-1: 66676a656ee49c56b4e44713082e4d2562b53c03 SHA-256: e47d57edb66ce7774600ddaad853ef10fb7dd9af22576e632135d55308f2d81b
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=french+horn+scales+2+octaves In PDF document text
    • https://levevuwakute.weebly.com/uploads/1/3/4/9/134904524/ffc631ef47a930a.pdfIn PDF document text
    • http://organic-ita.space/xipanugidefuzujewuduwoguzgk3fx.pdfIn PDF document text
    • https://nawowelefet.weebly.com/uploads/1/3/4/4/134498780/4286808.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410418/normal_60162871353f9.pdfIn PDF document text
    • https://jutoxanifi.weebly.com/uploads/1/3/5/3/135321179/a056638c5ef376.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369793/normal_5fc747ebe37b1.pdfIn PDF document text
    • http://rastet-malysh.ru/titan_quest_atlantis_worth_itswiph.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408878/normal_600a4322d5f64.pdfIn PDF document text
    • https://xadonuxezi.weebly.com/uploads/1/3/4/1/134131919/vimasipi-jebukokiteju-fozowe-wululuzuwoxit.pdfIn PDF document text
    • http://catsism.com/81383123194joe16.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416136/normal_5fc923ea90038.pdfIn PDF document text
    • https://ximipozatapemo.weebly.com/uploads/1/3/5/2/135297631/ruwuvasu-neliwudavejese-pugad-tatepetupim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375886/normal_5fd83b6c0b6f5.pdfIn PDF document text
    • http://detonic-buy.website/diy_pallet_projects_easyng8gl.pdfIn PDF document text
    • http://itclick.info/dilowovazefofimuguvikarsco.pdfIn PDF document text
    • http://easycreditscore.info/646416624840ka1a.pdfIn PDF document text
    • http://shop-profildoors.ru/anticoagulantes_clasificacionzkibm.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/lerezazo/rizeliza.pdfIn PDF document text
    • https://s3.amazonaws.com/gavapozalilup/69317089342.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/vuwonevegasutopavutifizib.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/40259160726.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_off0000dddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDDB 5036 bytes
SHA-256: 8d5aa648643eae58042b0df3d3bf8eb05119173cbe970e3b4c2c80974192b61d
font_01_sfnt_off0000eefe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEFE 12096 bytes
SHA-256: 458d5e2202af255ef097dc9ebdfe07832601e5be14fb3618dbd8ba52f793ed78

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