Malicious PDF — malware analysis report

Static analysis result for SHA-256 eed96c3c1970953a…

MALICIOUS

PDF

64.9 KB Created: 2021-02-18 19:53:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1e834f6329bb5c98c5ae45864290a746 SHA-1: 1ba17489101e81f0fd330c0a3297acc6666d5f04 SHA-256: eed96c3c1970953a9acb5a89854b9c3169aff223046c01d3252deec811bb4a2d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/123?utm_term=vocabulary+builder+app+for+windows PDF link annotation
    • https://cdn.sqhk.co/gitopedevid/IbjelJC/25863118290.pdfIn PDF document text
    • https://cdn.sqhk.co/defisepeniba/chp8rgj/bureluja.pdfIn PDF document text
    • https://cdn.sqhk.co/rogenujudita/jdeRfjb/board_game_arena.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/taturi/71906050320.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/diesel_autothermal_reformer.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/harken_mainsheet_base.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/vavuzunaruxuweb.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/hal_leonard_cd_sheet_music.pdfIn PDF document text
    • http://savefativiluz.epizy.com/vizio_e420i-a0_stand.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/62228732388.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/ipcc_report_2019_italiano.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/turajib.pdfIn PDF document text
    • https://s3.amazonaws.com/jidagafinuxesu/95832297754.pdfIn PDF document text
    • http://bitudisejopelak.rf.gd/sepak_bola_liga_indonesia_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/internet_explorer_11_for_android_phone.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_off0000c302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC302 5448 bytes
SHA-256: 43ec007234063dbbf03543c8c59e33459945772ab22dbe4659a66b9ff23f8124
font_01_sfnt_off0000d5ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5AD 9620 bytes
SHA-256: 74a709091e01bdac418ca6a03d545ce802a73165328f3fb0c70fd333b03598fb