Malicious PDF — malware analysis report

Static analysis result for SHA-256 2593dc67c2d7e78e…

MALICIOUS

PDF

65.0 KB Created: 2021-01-30 17:21:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3b0aa9cc76930be75a80f2c1dd44bba5 SHA-1: c796cae96a33580161679a36c31ad722334a8404 SHA-256: 2593dc67c2d7e78e85efd07facf36d89a33a28c0fc991280e050dd92708b030a
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://cctraff.ru/wb?keyword=paintball%20gun%20tank%20adapter In PDF document text
    • https://static.s123-cdn-static.com/uploads/4493597/normal_5ff71234e2e6f.pdfIn PDF document text
    • http://wajufogisabo.iblogger.org/bidaai_movie_video_song.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411252/normal_5fd6b0ec5e375.pdfIn PDF document text
    • http://kupelobivinix.22web.org/bhojpuri_video_song_2018_mp4.pdfIn PDF document text
    • https://cdn.sqhk.co/bijukipuj/iBQMttM/77763169401.pdfIn PDF document text
    • http://vulifux.66ghz.com/95366770676.pdfIn PDF document text
    • https://cdn.sqhk.co/sikibeve/y4HhgMA/lobbyist_salary_sacramento.pdfIn PDF document text
    • https://zedimubaxujejit.weebly.com/uploads/1/3/4/7/134715534/4031685.pdfIn PDF document text
    • https://cdn.sqhk.co/bitomasijelo/fyifzii/sibomexad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471710/normal_5ff0bce1b8018.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zusobudem.epizy.com/cpcb_guidelines_for_noise_monitoring.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/bobiresututibejexudamu.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/gekuzijuzalo.pdfIn PDF document text
    • http://nitovotiroxe.epizy.com/44191305068.pdfIn PDF document text
    • http://fewetero.epizy.com/gugekavogemaw.pdfIn PDF document text
    • https://s3.amazonaws.com/xaliwalufoguni/decapod_on_a_menu_crossword_puzzle_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/fejakixoweka/wakuso.pdfIn PDF document text
    • http://gebuzabode.epizy.com/kixofaxaganijojabova.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_off0000c1d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1D2 5156 bytes
SHA-256: 263efb71d2ba53c0e4f6cf96ca76a27794f42d1cf5ae5fc771a9b5dc599835ea
font_01_sfnt_off0000d364.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD364 10528 bytes
SHA-256: f0fcd76a7f90c4a7fbf05bf5d9a472af2749848ca6ce62642e803063d3f8d9c7

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