Malicious PDF — malware analysis report

Static analysis result for SHA-256 026beb59b8fc706a…

MALICIOUS

PDF

83.6 KB Created: 2021-02-11 02:42:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e3c52bdfd29a2c8d4645ed630fe1039c SHA-1: f4e91654714a93e12e9c5be2af67225474a541b6 SHA-256: 026beb59b8fc706ad793cf62b95216912e8fc7c41194620f09f844c93dea01bd
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/wb?keyword=behringer%20deepmind%2012d%20user%20manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4500187/normal_5fc90b89d0f41.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382789/normal_5fd110eaeb3ee.pdfIn PDF document text
    • https://cdn.sqhk.co/rowojazur/Yygcsii/valiant_mobile_banking_passwort_vergessen.pdfIn PDF document text
    • http://furniture21.online/94903712837v1lqt.pdfIn PDF document text
    • http://tryplafond.xyz/minecraft._net_server_1._13sq2oc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403140/normal_5fe1c18460031.pdfIn PDF document text
    • http://eyebrowthreadingdallastx.com/hernia_hiatal_por_deslizamiento_tratamientoa5iup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376600/normal_6012df9003c9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457572/normal_5fd95b9cb3ac0.pdfIn PDF document text
    • http://7gusevshop.website/exercice_difficile_barycentrev7jfx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485313/normal_5fc9ab1504add.pdfIn PDF document text
    • http://lnstagram-helps-contact.com/70129558332ft5zr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470035/normal_600d361d14f69.pdfIn PDF document text
    • http://scotiaenlineape-personas.com/steam_id_changer_cssa1pui.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380223/normal_5ff27ee660c7c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00010994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10994 5604 bytes
SHA-256: 2e65584428cdc1a70fb2220d75e08799cc6832076ab143851cfa140cf58b8404
font_01_sfnt_off00011c7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C7C 10964 bytes
SHA-256: 4bafa8bbee6f7df1bd61d5ea8ff18ed9f92616efc750c8e92b4165ad759bbd11