Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cc18396cd5ac824…

MALICIOUS

PDF

67.3 KB Created: 2020-11-10 06:22:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: b14d256a645b4443df84465c7420be8b SHA-1: bad1cb7fbe395b317c4b8bac3bf1c6c79152adeb SHA-256: 7cc18396cd5ac824f5d953e944786660da6deaee62dee9bcee47ec3010a80c36
136 Risk Score

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://trafffi.ru/strik?keyword=tn+fire+academy+training+schedule PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380384/normal_5f8c5c3b26a31.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/fasanag/51006930170.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/33518444438.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/70868243551.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03e64f8b-e873-4eaf-b199-a671ce7c86a9/nightwatch_a_practical_guide_to_view.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc9bec97-e8da-4532-af3b-e896ca16a857/bofopinidepotagukivokuv.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/25650193457.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28ee5d65-169a-461c-86f3-b17c82ca4ae3/96778284691.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/los_angeles_times_voter_guide_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/inverse_variation_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/podawakumepewez/bodmas_questions_for_class_6.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/city_of_toledo_garbage_schedule_2019.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_off0000c9c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9C6 5484 bytes
SHA-256: 2f6d6a87d7fb5275c85bdf804b39ba3e239445e5964a53c0b4b96ec678ac5e58
font_01_sfnt_off0000dc4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC4E 10580 bytes
SHA-256: 00d6bf087db97f38a717cd97580341c6c8d68926e49e5011c2eb086c736d0af1