Malicious PDF — malware analysis report

Static analysis result for SHA-256 ced297d5b4b39525…

MALICIOUS

PDF

72.1 KB Created: 2021-03-06 13:37:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 93ecdbe7bf009cdef3bb76773d62c5dd SHA-1: 82577f6481e7cd3bdcbfb9713c27f84b1c676dd8 SHA-256: ced297d5b4b39525c8d7944b03662fa6b02d0684121c8562cc76a90b4ed0946f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://dugedepap.ru/award?keyword=strategy+guiding+policy PDF link annotation
    • http://zuwazari.22web.org/busokololo_church_choir_songs.pdfIn PDF document text
    • https://kejuzeke.weebly.com/uploads/1/3/4/4/134456394/rozer.pdfIn PDF document text
    • http://xejopegig.mypressonline.com/enemy_pie_art_activities.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496005/normal_5fdb0e3f03c97.pdfIn PDF document text
    • http://xubajur.mygamesonline.org/60553806254.pdfIn PDF document text
    • https://kedosesu.weebly.com/uploads/1/3/4/8/134853013/7561dbac97c02c.pdfIn PDF document text
    • https://lamuwopinu.weebly.com/uploads/1/3/4/6/134632291/sifesowi.pdfIn PDF document text
    • https://lepopitiw.weebly.com/uploads/1/3/4/7/134762721/nagixi_buwiwab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472760/normal_6035fb5e55723.pdfIn PDF document text
    • http://tokudujadi.medianewsonline.com/nawuvidesadajezuvepe.pdfIn PDF document text
    • http://popijizixoxovoj.iblogger.org/petemid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452607/normal_6007ea93630f2.pdfIn PDF document text
    • http://sovolox.getenjoyment.net/is_greenworks_a_good_brand.pdfIn PDF document text
    • http://vanibunogi.iblogger.org/what_are_the_5_most_important_things_in_a_relationship.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/naxizugenabi/environmental_geology_study_guide_answer_key.pdfIn PDF document text
    • http://bifovigavij.myartsonline.com/tejerawa.pdfIn PDF document text
    • http://puzexexaniledow.epizy.com/siwinazabipamon.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/cub_cadet_lt1045_drive_belt.pdfIn PDF document text
    • https://s3.amazonaws.com/figidireki/career_opportunities_in_marketing.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/event_planning_website_template_wordpress.pdfIn PDF document text
    • http://fosarasopu.rf.gd/mavox.pdfIn PDF document text
    • https://s3.amazonaws.com/jevelel/facebook_messenger_archived_messages_android.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_off0000dffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFFC 5268 bytes
SHA-256: 4a6c85215f0cd46c0bcfee0e2a3704451993aab841757b58d516c275f6b11172
font_01_sfnt_off0000f1fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1FD 9768 bytes
SHA-256: 0ce8943fb04f75839288751551e35370332240346f92a1eb8e3a84fa85deb766

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