Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e6d39e3932f8b51…

MALICIOUS

PDF

75.3 KB Created: 2021-02-16 09:15:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d2f5d7ee18d7056906d3985989fdd2cc SHA-1: 9f2d7c02e33453709efbbca94f16226df68e19c3 SHA-256: 2e6d39e3932f8b510bbddf31d94f54cfaf9f0e808798a518aaf77ecf49bb2f87
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://seumenha.ru/wb?keyword=verbos%20irregulares%20castellano%20lista PDF link annotation
    • https://cdn.sqhk.co/zebenane/higdieq/tizodonesunidogakelireses.pdfIn PDF document text
    • https://cdn.sqhk.co/mivufarowiwi/kjjPibG/disorderlies_the_movie.pdfIn PDF document text
    • http://verifybadgesbusiness.com/property_damage_report_templaterapea.pdfIn PDF document text
    • https://cdn.sqhk.co/rinugezig/chcCUgh/cult_of_chucky_netflix_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/soxoxefumuv/eN1ghCT/world_youth_bowling_championships_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/vipabure/Wujd9lp/best_shooters_in_2k20.pdfIn PDF document text
    • http://clubstore.pro/hattrick_meaning_in_telugu67kln.pdfIn PDF document text
    • https://xubejuvanexog.weebly.com/uploads/1/3/5/3/135311054/livobiko-lodikoborutul-busowenekas-gotewu.pdfIn PDF document text
    • http://expo-kit.ru/pepixurovouaxhh.pdfIn PDF document text
    • https://nalivugubogepa.weebly.com/uploads/1/3/0/9/130969323/jetonatawijemur_dapunajenema_sawolupejoviwe.pdfIn PDF document text
    • http://zizopeja.22web.org/zolafutakedefilula.pdfIn PDF document text
    • http://fusobilel.iblogger.org/kincaid_lake_fishing_guides.pdfIn PDF document text
    • https://cdn.sqhk.co/subilikiwi/shb42gj/murder_mystery_dinner_theater.pdfIn PDF document text
    • https://cdn.sqhk.co/pixafosabow/i1egf26/animal_crossing_paths_qr_codes_tumblr.pdfIn PDF document text
    • http://chuvashovfamily.ru/sajur48q2p.pdfIn PDF document text
    • https://nuvaxavixo.weebly.com/uploads/1/3/0/7/130738964/pisogukulipumu_duduzofem_rizerupafuri_turerowabegiwa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mafekebokidodat.rf.gd/vukoridonizi.pdfIn PDF document text
    • http://mubomapobe.epizy.com/cyber_security_vs_information_security.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_off0000e97c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE97C 5072 bytes
SHA-256: 2a42a3bb1390be6f78b77e818fba62bc95756a18f7d5ed6251317ec8a2a395b7
font_01_sfnt_off0000fad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD0 10968 bytes
SHA-256: e4e644b7369b16d93e2cf50aad2dfe328a346100d8c9657d88c2805b52013fbe

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