Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8e610e0282f63f7…

MALICIOUS

PDF

72.3 KB Created: 2021-02-19 05:04:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: dba7a3850a7634cc41c706f2e4cc6e04 SHA-1: 3a04aaf620365db71a03e33fa0397c81cc616c1e SHA-256: c8e610e0282f63f7a3a5f4de10425d956beee3873078b1d7e7d7b8c22c213194
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://jacksth.ru/strik?utm_term=2013+honda+civic+owner%2527s+manual PDF link annotation
    • http://copyrightshelpcenter.com/apple_tv_wishlist_disappeared_2018p6e1p.pdfIn PDF document text
    • http://lutefofojonu.iblogger.org/97267552613.pdfIn PDF document text
    • http://eroganoficial.site/surulegisikizanasemawogola5eab.pdfIn PDF document text
    • http://fakutavavuzixin.22web.org/sea_cadet_corps_uniform_regulations.pdfIn PDF document text
    • http://cosmosqrab.online/fodanolutediruwujedodumkw99b.pdfIn PDF document text
    • http://galoomer.online/suwonikitidiwalupavui6ru.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373749/normal_5feb87b793f04.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/vovuzize/kalijexaxa.pdfIn PDF document text
    • http://gufaxepelirub.rf.gd/lasoje.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/divaze.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/wiseguy_nicholas_pileggi_free.pdfIn PDF document text
    • https://s3.amazonaws.com/selivuvumepaveb/fozokori.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/gazivuz.pdfIn PDF document text
    • https://s3.amazonaws.com/zulezov/multiplication_and_division_of_decimals_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/67122820083.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/essential_biology_textbook_for_secondary_school.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/20897431518.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/30664126224.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_off0000dd84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD84 5760 bytes
SHA-256: 52e4391964451c87a8f968f40b5f68b6b6751f1a8d5ebd4bd9be21956a463f03
font_01_sfnt_off0000f109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF109 10192 bytes
SHA-256: 46e79fc806b5cde0a2914466397e134919cd2af9193307e866afcfaa2493e21a