Malicious PDF — malware analysis report

Static analysis result for SHA-256 c286162c17acc62f…

MALICIOUS

PDF

88.1 KB Created: 2021-02-19 01:19:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b9ffc1824ce31c17e6545bdec0a81b8b SHA-1: 22c7a4b1867e11eb53f484b5cee555980f1cbc7e SHA-256: c286162c17acc62f83690fd2c3390e06cd31055548ab01c50a205730eca0703c
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a lure related to 'Disney world park hours' and a high-risk heuristic firing for a redirector link. The ML classifier and ClamAV also flagged this as malicious phishing content. The embedded URL likely leads to a phishing page designed to steal user credentials or deliver further malware.

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://jacksth.ru/aws?utm_term=disney+world+park+hours+nov+2019 PDF link annotation
    • http://idealicaufficiale.website/company_of_heroes_2_us_guidek93x5.pdfIn PDF document text
    • https://cdn.sqhk.co/zesonixiv/jbkOHs9/20654226986.pdfIn PDF document text
    • http://mkr-olimp.info/xitozilexipiludupejomag74959.pdfIn PDF document text
    • http://fefogumok.22web.org/hp_p2035_parts_list.pdfIn PDF document text
    • https://cdn.sqhk.co/juvebuzizej/sggSgcB/super_fast_4g_download_browser_apps_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417206/normal_5ff9c4e00f7dd.pdfIn PDF document text
    • http://topstudy.fun/alfheim_online_game_freeiof62.pdfIn PDF document text
    • https://cdn.sqhk.co/reteduze/2rghZje/xadin.pdfIn PDF document text
    • http://repochka.site/sagatirizotobazufojig0bgc4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370266/normal_600680fdf2738.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478950/normal_6027c7584ccbb.pdfIn PDF document text
    • https://cdn.sqhk.co/gadujotev/xijTig8/90569055396.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/tesotiwapax/86780388398.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/88219064653.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/unctad_least_developed_countries_report_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/17448474310.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/netacad_ccna_2_final_exam_answers.pdfIn PDF document text
    • http://mowumurukilada.rf.gd/62133952145.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE6B 13368 bytes
SHA-256: aa00cc85f4f269b1a7748c96dfcba9eaa31a1e676769e9e57e037fc37e7e3b8c
font_01_sfnt_off00011769.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11769 5844 bytes
SHA-256: c4451d81964819d12e891c3e8d0dd09201ae487b63dd8776506fb0a2a2ac6a43
font_02_sfnt_off00012b6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B6C 11516 bytes
SHA-256: 854b35aae7c40b118e835c85d561016da0e8f83452485368ac9be117708954c7

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