Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d68496d42652186…

MALICIOUS

PDF

65.9 KB Created: 2021-02-09 06:04:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b23928473c90ab53d41ca6f0074ad739 SHA-1: a5f9ed0de1135f23d7c281bb2acdd221355a37a8 SHA-256: 0d68496d42652186edeca75fde3fdc86f9f71c046ecb9944721afb872e065d3b
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/wb?keyword=installing%20sheetrock%20on%20ceiling In PDF document text
    • http://dulexip.22web.org/irobot_roomba_980_review_consumer_reports.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375073/normal_5ff8e525b1a92.pdfIn PDF document text
    • https://cdn.sqhk.co/dexasubu/ghYX2QH/oceanhorn_2_android_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412575/normal_6015a297e628f.pdfIn PDF document text
    • http://zijogodakenanaf.22web.org/asana_meeting_templates.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446374/normal_6014f01f32239.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/lanaladu/41603104789.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/angamaly_diaries_video_songs_1080p.pdfIn PDF document text
    • http://jisuwexadik.rf.gd/cephalosporin_mechanism_of_action.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/risijadipa.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/chsl_2019_form_fee.pdfIn PDF document text
    • http://weralawubuzeg.epizy.com/adaraya_agamaki_adahanna_puluwan_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/hplc_column_selection_guide_waters.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/29286418598.pdfIn PDF document text
    • http://mabofikoparu.epizy.com/31287351901.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/preston_v_bolton_match_report.pdfIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/mogelawub.pdfIn PDF document text
    • http://gotenekopibijo.epizy.com/lalidebud.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_off0000c5f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5F6 5064 bytes
SHA-256: 8853b19a4773c3ec67fbe2153e37911b129d2b9319efb920aaad9eec95866079
font_01_sfnt_off0000d727.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD727 10300 bytes
SHA-256: 974337d6a8dd6c79b10483e5198c183ab973991be8693e7f63789f25c815a3e3

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