Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e36ad9e422d0065…

MALICIOUS

PDF

73.0 KB Created: 2021-02-26 21:10:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ff485b97740895d875a1d035fa6005c1 SHA-1: 2d9b8f29fef69c31ebc6c8a463ac167b2e9796b2 SHA-256: 5e36ad9e422d0065b88ff2cde0110c4dcbe029d3e7f15ddc17243961e4dd0815
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/award?keyword=dairy+free+egg+free+cake+near+me PDF link annotation
    • https://cdn.sqhk.co/joziroluxu/ifgcjjd/picture_of_metta_world_peace_wife.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483608/normal_60370608937ca.pdfIn PDF document text
    • https://xopigitit.weebly.com/uploads/1/3/4/3/134339451/1943089.pdfIn PDF document text
    • https://cdn.sqhk.co/fojilude/c5Hifdz/6913178975.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376125/normal_600ad86869a66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470981/normal_60160331eb93d.pdfIn PDF document text
    • http://taxavifosobedul.iblogger.org/futoburupadovogitu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393502/normal_60002a29cb5bb.pdfIn PDF document text
    • http://matagenomix.22web.org/samsung_s21_ultra_release_date_usa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://votofeki.epizy.com/air_purifier_does_not_work.pdfIn PDF document text
    • http://menawikilu.rf.gd/726799147.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/42278281466.pdfIn PDF document text
    • https://s3.amazonaws.com/minegikukovel/colorblind_counting_crows_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/50694785931.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/brand_fusion_ringtone.pdfIn PDF document text
    • http://jasosuwer.epizy.com/3239150403.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_off0000e24b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE24B 5156 bytes
SHA-256: 7540e9fabbf627a5e9438da199ce07cea12f94d126b56977f289756d85fc14dc
font_01_sfnt_off0000f3e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3E5 10344 bytes
SHA-256: 73c3fd69777be5eba157040611141720ec5c0a8eb71621c9805208da743aa8fd