Malicious PDF — malware analysis report

Static analysis result for SHA-256 296a8420246def43…

MALICIOUS

PDF

68.8 KB Created: 2021-02-03 16:21:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d326505b19db9b50411d8a2b54d3de4f SHA-1: 8a2f47f2897ca924f40710553c4b34ace99b064b SHA-256: 296a8420246def43f6828bef0fe9774f62772fa2f188afaf8c91f7ddbf1034a9
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://druttle.ru/wb?keyword=universal%20insertable%20plastic%20tabs%20template PDF link annotation
    • http://segewagukejij.iblogger.org/yadon_ki_barat_song_pagalworld.pdfIn PDF document text
    • https://kisezuxuromo.weebly.com/uploads/1/3/0/7/130776201/1290802.pdfIn PDF document text
    • https://jufozawuvinuxak.weebly.com/uploads/1/3/5/3/135326647/6089589.pdfIn PDF document text
    • http://zelafagilu.iblogger.org/cartina_stradale_basilicata.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/betefowubevat/carrier_18000_btu_inverter_manual.pdfIn PDF document text
    • http://mibenovelu.epizy.com/xudimalexomumeze.pdfIn PDF document text
    • http://gegawuwiru.epizy.com/the_babysitter_movie_dual_audio.pdfIn PDF document text
    • http://molutuganum.epizy.com/sunuketofomubedupizanoji.pdfIn PDF document text
    • https://s3.amazonaws.com/tidigudetefumof/casio_tough_solar_ws220_manual.pdfIn PDF document text
    • http://rawarawoxegig.epizy.com/alkanes_and_cycloalkanes_conformations.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/timeline_excel_template.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/wasajamabikuz.pdfIn PDF document text
    • http://tunivepusage.epizy.com/presentation_design_software_free.pdfIn PDF document text
    • http://wolaniloko.epizy.com/fraction_word_problems_adding_and_subtracting_worksheets.pdfIn PDF document text
    • http://donixug.epizy.com/81671199195.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_off0000d01d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD01D 5268 bytes
SHA-256: 94d9195ba8643910b244734991f06afca6d4dc68dd447a4fb53983ba2f4bfe35
font_01_sfnt_off0000e1f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1F6 10796 bytes
SHA-256: 0897a253177abd3b3b9d95df37402ffbc5ae6b6025807e78bc57891a2d1b9575