Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c568db79f955f19…

MALICIOUS

PDF

69.1 KB Created: 2021-03-01 16:47:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e32e50634cc4247847ff2158e4fb38e3 SHA-1: 99644a94f96e1ff434b91beadcbd98847876adcc SHA-256: 0c568db79f955f19a7c07d81e56f11ad1209d9bb96accc841bc3d5468e79bc62
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://xajibur.ru/award?keyword=dream+town+rose+petal+cottage+instructions+manual PDF link annotation
    • http://zutatowatipo.mywebcommunity.org/how_much_do_qa_testers_make.pdfIn PDF document text
    • http://widuzuduzudovix.iblogger.org/wisconsin_corporation_bylaws_template.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385422/normal_5fd87995d5eb2.pdfIn PDF document text
    • http://mawifit.iblogger.org/empirical_research_report_definition.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lapefub.epizy.com/good_free_messaging_apps_for_android_phones.pdfIn PDF document text
    • http://wugujub.onlinewebshop.net/how_to_install_sena_20s_evo.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/nufenagune.pdfIn PDF document text
    • http://temanaxalagiguw.rf.gd/givasibiluzaxolivit.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxirefare/kerodudosawadudi.pdfIn PDF document text
    • http://vunonam.atwebpages.com/79299987840.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/47178995111.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/82571568705.pdfIn PDF document text
    • http://zubiluwetij.myartsonline.com/casio_g_shock_rangeman_black_panther.pdfIn PDF document text
    • http://gozulejawefufap.epizy.com/sample_application_form_for_us_tourist_visa.pdfIn PDF document text
    • http://vobununebufipu.rf.gd/baji_band_song_mp3_download_jayasrilanka.pdfIn PDF document text
    • http://ruredat.rf.gd/pipupixogasefu.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_off0000d298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD298 5344 bytes
SHA-256: 747f18a2bc91c97f3eeaf536068b5df885df42357324cd862eef63d408a8c642
font_01_sfnt_off0000e4c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C3 10144 bytes
SHA-256: 14aa80b5fa5d700a64b4a6a08f8b11f6256d3a8cd1c895afc23e3f4ea3e952be