Malicious PDF — malware analysis report

Static analysis result for SHA-256 5daf06973f589b40…

MALICIOUS

PDF

79.6 KB Created: 2021-01-22 03:19:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b5d974fdeb7e62bf9ba582e28c8daa12 SHA-1: 319d7a9fa350f21b592ecf38ce903f0cb0606ccb SHA-256: 5daf06973f589b4092eec303bc961acfe6b99d3b6034e1b5ef069f5717be7987
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/123?utm_term=mordred+pendragon+wiki PDF link annotation
    • https://site-1174103.mozfiles.com/files/1174103/football_manager_2021_mobile_beta.pdfIn PDF document text
    • https://cdn.sqhk.co/bixelosa/jgmheSk/descargar_uphill_rush_2_usa_racing.pdfIn PDF document text
    • https://site-1257481.mozfiles.com/files/1257481/zuwopasukupuvomebalul.pdfIn PDF document text
    • https://site-1172681.mozfiles.com/files/1172681/55507283527.pdfIn PDF document text
    • https://site-1226218.mozfiles.com/files/1226218/animal_farm_book_vs_movie_worksheet.pdfIn PDF document text
    • https://simisasokudu.weebly.com/uploads/1/3/4/2/134235492/bamufokunij_wovaxum.pdfIn PDF document text
    • https://wawodedirikib.weebly.com/uploads/1/3/5/3/135348651/be5baa.pdfIn PDF document text
    • https://cdn.sqhk.co/zojoguxuban/ifanOhc/palimubi.pdfIn PDF document text
    • https://bemetapijulew.weebly.com/uploads/1/3/1/4/131437656/revanosamaxap.pdfIn PDF document text
    • https://cdn.sqhk.co/papebikuwi/hjC7Xhg/peeling_happy_more.pdfIn PDF document text
    • https://cdn.sqhk.co/lojosewude/WgBvOjb/61875138704.pdfIn PDF document text
    • https://site-1201991.mozfiles.com/files/1201991/virejawetubeke.pdfIn PDF document text
    • https://site-1256248.mozfiles.com/files/1256248/xokaraluke.pdfIn PDF document text
    • https://site-1228403.mozfiles.com/files/1228403/vawajununu.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/juvetaso/reliable_vs_unreliable_narrator_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/lepefi/angular_6_file_upload_multipart_form-_data.pdfIn PDF document text
    • https://s3.amazonaws.com/vosimalume/rokerenuvexuxakazaku.pdfIn PDF document text
    • https://s3.amazonaws.com/mefovu/coolangatta_sands_hotel_gig_guide.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_off0000fe3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE3F 5076 bytes
SHA-256: ab4f6c54317fcbc7d76770264d29bb91c9f9ea53f71e1a4407818ab84515eeb5
font_01_sfnt_off00010fb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FB4 9868 bytes
SHA-256: c37080bf6de4c2401dca39f506f868fe481640104b8987896bda866278cfd6dd

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