Malicious PDF — malware analysis report

Static analysis result for SHA-256 682ea4b5d75d6f6b…

MALICIOUS

PDF

75.0 KB Created: 2021-01-31 23:00:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: faf7e0b9cda0a8d522c270e9e4e8561b SHA-1: 38eb1f4878fffdb21b59c161eb4cf4d414da56eb SHA-256: 682ea4b5d75d6f6b211fda25321371dbab4e82845fec570d018556da64652e7f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://jottigo.ru/wb?keyword=spiral%20staircase%20movie%20watch PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4392210/normal_5fe880bf621d6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366057/normal_5fe1685991da5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446762/normal_60159b47e8cdb.pdfIn PDF document text
    • http://pewagupudasita.22web.org/79444270513.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501208/normal_60099bba99dc6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482882/normal_5fe2b9a2c9b92.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409114/normal_5fd644bc6370e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500447/normal_5fd1ed276235e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386606/normal_5ffc6a8ce4b0d.pdfIn PDF document text
    • https://cdn.sqhk.co/rurizibaxami/cRrlEoL/winter_wars_roller_hockey_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/nakizenonetu/gf9ghhj/93252813855.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484156/normal_5ffd46b6d8da4.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/kosamupim/4008002309.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/consumer_reports_washing_machine_ratings.pdfIn PDF document text
    • http://newewixojarulup.epizy.com/28139953769.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_off0000e92c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE92C 5428 bytes
SHA-256: 04230780066a121fef2bba9891a712d68aad35cd99ec15215ee682dd1e281b99
font_01_sfnt_off0000fb85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB85 10520 bytes
SHA-256: ac0d50774827084f9e241e122fde9e4912edb0f446a16bd579e9a301c71fe0ff