Malicious PDF — malware analysis report

Static analysis result for SHA-256 45a74e865c364e6b…

MALICIOUS

PDF

71.9 KB Created: 2021-02-13 05:27:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: e1e4115cc2d7ffd59382459041c494fb SHA-1: 85fa41c0df230642d01294e9b8a24f71ce2fa19c SHA-256: 45a74e865c364e6b36f3d11310d17dff1f3d845330c5f5f9debbf2921347443c
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://bologen.ru/wix?keyword=koopa+revenge+2+alpha PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369651/normal_600f49d584319.pdfIn PDF document text
    • https://cdn.sqhk.co/tuseliwi/WRbFG9B/fashion_cover_girl_makeup_star_mod_apk.pdfIn PDF document text
    • http://zuxenegobepejij.22web.org/mcent_browser_old_version_apk_mirror.pdfIn PDF document text
    • https://cdn.sqhk.co/povewepalu/CjaigHt/midway_bally_ms_pac_man.pdfIn PDF document text
    • https://cdn.sqhk.co/wifavizen/hfZ2ghu/legalosupuxokasa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497685/normal_5fe1d5335e52e.pdfIn PDF document text
    • https://cdn.sqhk.co/buruvalufe/kIKgiii/dotloop_training_videos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501789/normal_5ff89bdb4eae1.pdfIn PDF document text
    • https://cdn.sqhk.co/jomonufo/iifDhgY/77570037794.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452607/normal_5fe32f4bba35b.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/xoguwavosuje/lojavisomukemis.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/cbt_maladaptive_thoughts_worksheet.pdfIn PDF document text
    • http://visobiwedixupip.rf.gd/aleister_crowley_libros.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/art_and_craft_ideas_free.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/6103515483.pdfIn PDF document text
    • https://s3.amazonaws.com/gazijewevan/wevabaxuwukifogibod.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_off0000ddaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDAA 5064 bytes
SHA-256: bec1554fd4d81e1c15de202ded6d81a29cbe3ac882192bf499b5caa5f81dc046
font_01_sfnt_off0000eee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE9 10532 bytes
SHA-256: fcf255fa2641cb65e35370a2044a2338704cb25611437a3054f71e341523f761