Malicious PDF — malware analysis report

Static analysis result for SHA-256 568ec71ae1ab2047…

MALICIOUS

PDF

72.0 KB Created: 2021-03-11 19:46:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 83d17fad26d3f70cdc3f300aaa829caa SHA-1: d847e5b5f13b33d435b21c618cbaa5180ee0500c SHA-256: 568ec71ae1ab20472533e2a92c2d6588ef5378797e7004a6e9015858833421c7
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://mezovuduw.ru/wix?keyword=jabra+manual+evolve+75 PDF link annotation
    • http://dawezedelofeda.scienceontheweb.net/information_security_risk_assessment_methodology.pdfIn PDF document text
    • https://fupobemoxu.weebly.com/uploads/1/3/4/6/134669325/9519248.pdfIn PDF document text
    • http://vurejowug.mypressonline.com/pokufosupadaler.pdfIn PDF document text
    • https://mirulunus.weebly.com/uploads/1/3/1/1/131164386/ef634f61fed.pdfIn PDF document text
    • https://nizevamil.weebly.com/uploads/1/3/2/8/132814567/1373269.pdfIn PDF document text
    • https://gafepidata.weebly.com/uploads/1/3/0/7/130776025/dozexixobewev.pdfIn PDF document text
    • http://gejudoxe.mypressonline.com/botapubejususutinutetufa.pdfIn PDF document text
    • https://rogaturo.weebly.com/uploads/1/3/1/0/131069781/afd5c4015eb6e4.pdfIn PDF document text
    • https://wigapekowuv.weebly.com/uploads/1/3/4/4/134488511/gozeganov_nejagi_bemefasefu.pdfIn PDF document text
    • http://nalivosebek.22web.org/dogifefot.pdfIn PDF document text
    • http://mudixefibewab.mywebcommunity.org/dog_man_books_2020.pdfIn PDF document text
    • https://jokiwaxe.weebly.com/uploads/1/3/2/7/132740814/vegagidu.pdfIn PDF document text
    • http://nazorizuz.medianewsonline.com/salems_lot_book_club_edition.pdfIn PDF document text
    • http://kozizukexepuf.22web.org/tecumseh_carburetor_replacement.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://5b3500e9-40b4-440a-9ada-171ed8bcf4c9.filesusr.com/ugd/7820d0_4f4c68d34db543e1ae8c229d9b96bf70.pdf?index=trueIn PDF document text
    • http://zoxokek.rf.gd/best_ab_workout_routine_no_equipment.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8faa01eb-2d92-4a81-8505-1576a703f92e/wendys_menu_with_pictures_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64a43870-4738-42b8-b66c-2977774281eb/are_brioche_burger_buns_sweet.pdfIn PDF document text
    • https://a3c35cc3-4a3f-4d41-ab51-8b3e4b114d30.filesusr.com/ugd/2b25b5_603e3fc99c784c7e8c75d17d5917df24.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9491e295-7407-4bc3-b832-50ec7a041f91/dovosizis.pdfIn PDF document text
    • http://nesowoxaxisaxa.rf.gd/who_owns_wgn_news.pdfIn PDF document text
    • https://e0220c8c-c322-4c33-af83-7c5b0fe00b66.filesusr.com/ugd/a771bd_190570d42a674db19d61dc543e130db0.pdf?index=trueIn 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_off0000de31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE31 5048 bytes
SHA-256: 55f8f875b6c67fd56f27ba1e09b460663e011baf4d73ef8da8785552f047f515
font_01_sfnt_off0000ef5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5C 10424 bytes
SHA-256: bbc2c0ca4ebffb9af42fadca457d97a0eda6433ab3ce7e6af1364d8c3423299a

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