Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d8dab8fa385b21…

MALICIOUS

PDF

70.0 KB Created: 2021-02-22 04:39:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7608fa6ff6cd067ff91394544c908828 SHA-1: 014b6d7cc62641fd9d251bd36718ff4dc918c2ea SHA-256: c0d8dab8fa385b21e9470c9d1b8e23c8e175d797b9a9da7a77ffd9d88ab79b75
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://druttle.ru/wix?keyword=capital+city+gymnastics+topeka+ks PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4465131/normal_60008728522c2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367668/normal_600560942cf55.pdfIn PDF document text
    • http://inmyshtangen.xyz/kaxubarivavujedegowurinebyx7yg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490724/normal_6005b9b3e5e2a.pdfIn PDF document text
    • http://migriruy.ru/womirogonafer89r8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402517/normal_5fd2179f78c6b.pdfIn PDF document text
    • http://sanasojan.22web.org/ableton_live_9_free_full_version.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450634/normal_5fcdb7f59bd98.pdfIn PDF document text
    • http://mezoterilijixa.22web.org/what_causes_coliform_bacteria_infection.pdfIn PDF document text
    • http://rikopevadibix.iblogger.org/20071334423.pdfIn PDF document text
    • http://tokio-2020.fun/2714553743922ltk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445115/normal_600c531fcde64.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454167/normal_5ff631861978d.pdfIn PDF document text
    • http://kapubasezo.iblogger.org/blank_tax_invoice_template_australia.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fewuzefar.rf.gd/nasumavujebefedezosik.pdfIn PDF document text
    • http://mesepojo.rf.gd/fefosudomuzafek.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/autodesk_fusion_360.pdfIn PDF document text
    • http://kudogato.rf.gd/bamigelexep.pdfIn PDF document text
    • http://datasixiva.epizy.com/kovogax.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_off0000d5f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5F3 5228 bytes
SHA-256: cb62c166894235bfb8f85685584f788f2ce5411203e8c7a3cc7d598f0d47e245
font_01_sfnt_off0000e7bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7BC 10308 bytes
SHA-256: 7069cc99c284f743953c3a093d0eaa612cd1cced22d8638a1ed7c6fedf2a35fd