Malicious PDF — malware analysis report

Static analysis result for SHA-256 309534f9d3c0ad4c…

MALICIOUS

PDF

70.7 KB Created: 2021-02-17 16:20:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5d43050e8baa96000a76b11fc18ca1db SHA-1: 55897cb9f49084cfa1f2f787dad7fa4da2e190ed SHA-256: 309534f9d3c0ad4c672de65c5ef9371c24cdd8d583949c8c0b1562d91e140685
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://bologen.ru/wix?keyword=vampire+diaries+the+struggle+audiobook PDF link annotation
    • https://cdn.sqhk.co/tinipuded/bxzgeKc/zomunakikedi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465024/normal_602a1845625b4.pdfIn PDF document text
    • https://cdn.sqhk.co/nudabesawi/ac0jcja/soriputuzaduromumapof.pdfIn PDF document text
    • http://wegolurubakisud.22web.org/equivalent_carplay_apple_android.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409797/normal_5ff6c0addc783.pdfIn PDF document text
    • https://cdn.sqhk.co/romumoxoleno/assgdUd/xibemimub.pdfIn PDF document text
    • http://patewukezevo.iblogger.org/pewob.pdfIn PDF document text
    • https://cdn.sqhk.co/xexanodu/fhejVjI/youtube_ravon_r2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366014/normal_5ffde08883e5e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464077/normal_5fe03aec0589e.pdfIn PDF document text
    • http://konujojijitezu.iblogger.org/graphic_designer_portfolio_website_template.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/xakusineba/lebelotefirowanilabu.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/antivirus_gratis_per_android_tablet_samsung.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/66266827847.pdfIn PDF document text
    • http://mitudosukekunif.epizy.com/luxurifelulovexepibek.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/hair_brushes_for_adobe_illustrator.pdfIn PDF document text
    • http://zuvemodu.rf.gd/bovagagesugimufizorotukab.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_off0000d566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD566 5540 bytes
SHA-256: 580937e18ae9eb8e2b3c9d302f7853494e1290be14c6d4a16e9b39127734f0ca
font_01_sfnt_off0000e815.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE815 11148 bytes
SHA-256: 0b3a6ba9064608ac0c5f00ffaf591f37c6160dff5a249c65d69671d5f0b8a7a7