Malicious PDF — malware analysis report

Static analysis result for SHA-256 84021a1f24c18e70…

MALICIOUS

PDF

70.8 KB Created: 2021-03-06 17:26:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: fb12ef578d9afc9b3209a88b39a8b2a2 SHA-1: 32e0c8397069154e0d6d6e39144ec533254d2e38 SHA-256: 84021a1f24c18e70a4cefec8c958a71fab9bf5cc361243ec98577cbe5a025bc8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://jottigo.ru/wix?keyword=interpreting+line+graphs+worksheet+high+school+pdf PDF link annotation
    • https://sobopagugakevul.weebly.com/uploads/1/3/4/8/134881985/5371128.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407994/normal_603a5c5ccb82c.pdfIn PDF document text
    • https://jobexukutet.weebly.com/uploads/1/3/1/4/131452991/nisixexepa.pdfIn PDF document text
    • https://vizodifoberesin.weebly.com/uploads/1/3/4/9/134900429/81702303fdc3f.pdfIn PDF document text
    • https://zivazumuwekaf.weebly.com/uploads/1/3/2/6/132695746/jebaduzi.pdfIn PDF document text
    • http://majidadap.22web.org/amplidyne_and_metadyne.pdfIn PDF document text
    • http://zitaranitu.22web.org/video_wallpaper_android_4k.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412895/normal_6002bf5738d7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405197/normal_5fd35325b99d2.pdfIn PDF document text
    • https://merasata.weebly.com/uploads/1/3/1/3/131378960/terezajeretir.pdfIn PDF document text
    • http://jalakerag.22web.org/pofokoleziju.pdfIn PDF document text
    • http://vebafaguxaw.22web.org/xijabopuwisaneboxugenaj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475875/normal_5fcb24e45ae78.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405929/normal_6030a69c6c11c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fikelamizogu.myartsonline.com/55549576267.pdfIn PDF document text
    • https://s3.amazonaws.com/donukadizolin/losixijiw.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/dugefebosexofinujusibe.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/how_to_use_white_westinghouse_oven.pdfIn PDF document text
    • http://ralirajuz.atwebpages.com/how_to_assess_students_during_distance_learning.pdfIn PDF document text
    • http://xirebegutuvu.rf.gd/pemupivesafisusewokag.pdfIn PDF document text
    • http://sinizanuj.epizy.com/bakoruzob.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/bourbon_reforms_impact.pdfIn PDF document text
    • http://sejigesenevemi.epizy.com/guitar_theory_for_dummies_cheat_sheet.pdfIn PDF document text
    • http://figofubinodafe.rf.gd/evapotranspiration_book.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/feliz_tiene_acento.pdfIn PDF document text
    • http://faxarase.rf.gd/howard_gardner_multiple_intelligences_quiz.pdfIn PDF document text
    • http://bojefej.epizy.com/jaxuted.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_off0000d989.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD989 5512 bytes
SHA-256: 73414366cc395ec12907523fee384d3bf3f4edb7e0004520852ef458cfce1109
font_01_sfnt_off0000ec57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC57 9620 bytes
SHA-256: 9c7595365dcb5e3c49c482e9fdff3ccd48b0b4f521f59f080b39a26ea3093364

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