Malicious PDF — malware analysis report

Static analysis result for SHA-256 4faddb21a86d4f20…

MALICIOUS

PDF

71.0 KB Created: 2021-02-12 14:40:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 167a48c06e919f3af713abc4e5ebc809 SHA-1: e54a17eb2e3ca95dee996f00d6303cd1034979a1 SHA-256: 4faddb21a86d4f204e851e17d0ae0a9cff74f95a317fd6b13ceeb8e78670da6b
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://baarspo.ru/wix?keyword=nazareno+church+cdo+mass+schedule+2020 PDF link annotation
    • https://pigiburoletu.weebly.com/uploads/1/3/2/6/132695467/ropurok-kajaxuf-vosejivu-nidafima.pdfIn PDF document text
    • https://supifafal.weebly.com/uploads/1/3/5/9/135968022/nofomurufekexawifob.pdfIn PDF document text
    • http://helplnstagramcontact6088757.com/bopuligapavamulozzhqj8.pdfIn PDF document text
    • http://maroron.22web.org/zowapekub.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4504791/normal_6007e1f414112.pdfIn PDF document text
    • http://danivufulof.iblogger.org/android_studio_3._5_navigation_drawer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472788/normal_6007b105d0a19.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457592/normal_6025b6d391eb5.pdfIn PDF document text
    • https://kabudinikibe.weebly.com/uploads/1/3/4/7/134716255/sobeto.pdfIn PDF document text
    • http://ecoservice-vlad.ru/motor_world_car_factory_grand_prix_not_workingos08c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455881/normal_5fceac0cd846e.pdfIn PDF document text
    • http://detonicro.website/kart_racer_street_kart_racing_3d_gamesj5px0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nividibewejoba.rf.gd/wuthering_heights_chapter_6_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/mutirexa/12614659516.pdfIn PDF document text
    • http://rapuzivawa.epizy.com/sumunuvoxuboluwijilitoso.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/vce_to_converter_freeware.pdfIn PDF document text
    • http://gupomikalusa.rf.gd/metallurgical_and_materials_transactions_b_author_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/kpsc_recruitment_2019-_20_online_application_form.pdfIn PDF document text
    • http://robebiwasufilu.epizy.com/guidelines_for_external_dispute_resolution_scheme.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/80399970419.pdfIn PDF document text
    • http://wumumusonozukak.epizy.com/buvusor.pdfIn PDF document text
    • http://lojupefiduk.epizy.com/barbie_makeup_salon_game.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_off0000d64c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD64C 5472 bytes
SHA-256: 70074cb96872d0c6978f65ba7cabdb571459649574fe0c2bdab6904cf2a15197
font_01_sfnt_off0000e8c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C5 11224 bytes
SHA-256: b9d6c290f293b3f50c295f15fa53f998197fa8097692940aa78018dd3059f7a9

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