Malicious PDF — malware analysis report

Static analysis result for SHA-256 593ad91e319e2811…

MALICIOUS

PDF

89.8 KB Created: 2021-05-07 22:46:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 352bca79fd9025cc9f1ae5c979853f5d SHA-1: 56de8a60a4a14120fba2beab8b49b8991baf2f1a SHA-256: 593ad91e319e2811b8ddfc983a4c77c80f098e9ad6576acef0a24961986e99a3
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://kuzutuzo.ru/strik?utm_term=pop+culture+worksheets+pdf PDF link annotation
    • http://xifutipixa.mywebcommunity.org/regozizezodisexagusekinom.pdfIn PDF document text
    • https://cdn.sqhk.co/virurewev/Sifijis/solution_northern_tale_4_level_44.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472198/normal_60048209757a7.pdfIn PDF document text
    • http://xteenware.online/windows_on_the_world_complete_wine_course_updated_edition_20164u6y5.pdfIn PDF document text
    • http://monubagujizud.mywebcommunity.org/62649297278.pdfIn PDF document text
    • http://baramijotafexo.mypressonline.com/amun_ra_book.pdfIn PDF document text
    • http://1xbet-football.fun/8_ball_pooljrkng.pdfIn PDF document text
    • https://cdn.sqhk.co/tefupudoma/Ljahbhg/62682882823.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459794/normal_5ff2f25f03ef4.pdfIn PDF document text
    • http://uablog.website/mustang_owners_club_of_austink5x39.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499629/normal_6063ce1a03f0e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451225/normal_5fcee02e6376d.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwefuxab/Zjh9hhh/2047665409.pdfIn PDF document text
    • http://bestrongbyg.com/dt_crossfit_tipskdd2g.pdfIn PDF document text
    • https://cdn.sqhk.co/tovasodoj/jcMijhi/zuzeluxamifivelowaxulu.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/liwara/bedetifazafa.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/where_is_the_fuel_filter_on_a_dodge_ram_1500.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2234b70d-0754-40e8-a80f-1be7a59f1238/a_christmas_carol_charles_dickens_abebooks.pdfIn PDF document text
    • https://s3.amazonaws.com/nutanigonu/caso_clinico_de_embarazo_normal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c4d402c-5fe1-4ac8-ada1-ed24fd1b2af0/levulaxegekujurunufob.pdfIn PDF document text
    • http://bugazepoja.onlinewebshop.net/5th_grade_common_core_math_assessments.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/nebebetafusi.pdfIn PDF document text
    • http://rabatelekovufar.myartsonline.com/97861272390.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/judobuva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c00a6a9-fad0-4dc3-974c-61bb9a89e520/36968557800.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_off00011fef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FEF 5192 bytes
SHA-256: a170749f4846b940bf7cdafa45f8b21fba405c8c7c5fd4a9801c08ef1d7fbdb3
font_01_sfnt_off000131a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131A6 12040 bytes
SHA-256: 89047baae15c24c36ca79afa81946872146d6fa9627133c8a454ee2f4030daae

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