Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0714a3d5b9d31ae…

MALICIOUS

PDF

68.6 KB Created: 2021-02-27 01:25:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 48a0b38964d2893162dfc4e8aa9f4814 SHA-1: d749acea0ee79285741dbf74d33380f94a719aae SHA-256: f0714a3d5b9d31aedc45daffb1f85a6b8189cf45267f487e69f882c455dbef95
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=aw+direct+towing In PDF document text
    • http://ziwusis.getenjoyment.net/como_es_un_liderazgo_transaccional.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426572/normal_5fc647778880b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481520/normal_6033c3ceb59ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419846/normal_6029ef66d399d.pdfIn PDF document text
    • http://lezeninimi.medianewsonline.com/good_classes_for_warforged.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405639/normal_6024534475b58.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422638/normal_5fcb5ef81e6fe.pdfIn PDF document text
    • http://desokore.medianewsonline.com/charles_capps_youtube_angels.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480403/normal_5ffd3622ec19a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420924/normal_603444220cc17.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nejimafalun.onlinewebshop.net/junalajadaxizuwor.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/46464944241.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/lowovodurijebilex.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezodepugov/42585440995.pdfIn PDF document text
    • http://maligufaribez.epizy.com/latest_android_update_pie.pdfIn PDF document text
    • https://s3.amazonaws.com/xuvamuba/town_lake_loop_distances.pdfIn PDF document text
    • https://s3.amazonaws.com/wovisak/hand_drawn_flow_chart_template_for_powerpoint.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/instagram_stories_hd_online.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_off0000d220.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD220 4768 bytes
SHA-256: 7cc6adcf1e3da91a39e03a7937ba90ac5eae342fcb6c197836d80f23823b4ea3
font_01_sfnt_off0000e278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE278 10076 bytes
SHA-256: 976830e43e782add49aa372c8538f7e1ac2867f3a600b0a2b95ffa97ce1733d4

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