Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eefe904a17519e1…

MALICIOUS

PDF

63.2 KB Created: 2021-02-22 04:16:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 264c5027edd69ddf9154fb7e6159a227 SHA-1: a20ffb6903a7890354a2bba16387da2a996a16a2 SHA-256: 2eefe904a17519e1690830fd7b9a78e5017193e1a6e9e5b40f939ebadefa41e5
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=force+and+vector+applications+worksheet+answers PDF link annotation
    • https://cdn.sqhk.co/teketerep/gg2rchj/34958721941.pdfIn PDF document text
    • https://cdn.sqhk.co/xenudipu/pjhDvgf/falikovilifazudivixokud.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443610/normal_5fdf566804bb8.pdfIn PDF document text
    • https://cdn.sqhk.co/difigobon/hryiakN/red_sunflower_seeds_bulk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501804/normal_600fa8c4de53c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376127/normal_5ffb0c7053b85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501045/normal_6013d5a398010.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383146/normal_5fff38dc464d0.pdfIn PDF document text
    • http://nefritthebestthing.site/16499791950lgh13.pdfIn PDF document text
    • http://ludshop.xyz/air_force_exam_paper_2019831wg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382773/normal_5fd70f29eb30d.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/vajefam/edirol_orchestral_vst_free_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/rimofu.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_off0000bc22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC22 5332 bytes
SHA-256: 5f5a5207ee37224da6179f865ac790db5af7942414ee89611da7548b74ca0d7e
font_01_sfnt_off0000ce56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE56 9792 bytes
SHA-256: ec45845b0922a7bbea4a4c472cb9a0a5f4e878461726359affb0863fa11a5910