Malicious PDF — malware analysis report

Static analysis result for SHA-256 74d072a3faf39ebc…

MALICIOUS

PDF

77.5 KB Created: 2021-03-07 15:19:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6d760351fdd86a2a9901298e2269ee6a SHA-1: f8ad19c19f7c192e78272446d557bd9ce4ae0d73 SHA-256: 74d072a3faf39ebca8b3836e260def34344fc7ca8022f16cad86800fc6a26fe5
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://resalured.ru/123?utm_term=what+to+cook+ahead+for+thanksgiving+dinner PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4411915/normal_602dab6e24497.pdfIn PDF document text
    • https://cdn.sqhk.co/jurugaguvedu/lPEgghd/infinite_painter_brushes_gumroad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443823/normal_5ff3502ca47e2.pdfIn PDF document text
    • http://lezigovedavide.getenjoyment.net/hampton_bay_premier_ceiling_fan_remote_holder_mount.pdfIn PDF document text
    • https://cdn.sqhk.co/devisofage/hghaibd/turn_off_text_message_noise_iphone.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jubogaju.atwebpages.com/can_you_use_a_water_flosser_with_braces.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/079c7c66-7130-40d1-bcd7-2d78b6b02d69/vicks_vaporizer_pads_how_to_use.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29e67d65-a9bf-4883-bcb4-97607a6d049c/ancient_rome_reading_comprehension_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/why_do_jehovah_witness_not_celebrate_halloween.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/30851386852.pdfIn PDF document text
    • http://jaxunukologefis.onlinewebshop.net/how_to_change_frigidaire_ice_maker_filter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/724f551c-9a01-4f67-8507-937bb11124eb/vafimu.pdfIn PDF document text
    • http://kofaxafogi.myartsonline.com/mudogetomuxona.pdfIn PDF document text
    • https://s3.amazonaws.com/desenaz/duxejegelarunujigawip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/565983f7-42f2-4fc7-b610-3eb9aa308ef4/93491734729.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_off0000f1fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1FD 5388 bytes
SHA-256: 2246ce3c2bf78c9cd4eaa16fed6e276ee6b10da26d363342ecba9b7cab7cccb1
font_01_sfnt_off00010462.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10462 10712 bytes
SHA-256: 7bffbf224c3f87457b1e9f7b193ea4aeed36134753ac2749958a9220f59c6805