Malicious PDF — malware analysis report

Static analysis result for SHA-256 9732e0d571edfc44…

MALICIOUS

PDF

92.1 KB Created: 2021-04-25 12:47:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: b000a3996b335cc3db31f6a889166621 SHA-1: 51048255fc6cbef7d5398292a6463ae7fd8d2331 SHA-256: 9732e0d571edfc4413d2b2b0b5002f157d395fa671952d522c227c2f321886bb
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 0.9996

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://golowaki.ru/strik?utm_term=the+odd+couple+2015 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465548/normal_6018033bc20d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387582/normal_6060368418868.pdfIn PDF document text
    • https://cdn.sqhk.co/pugudanirav/ibIPohd/mr_maker_level_editor_game.pdfIn PDF document text
    • http://sowipilarow.mygamesonline.org/23773231689.pdfIn PDF document text
    • https://cdn.sqhk.co/gafisasiwu/12Gbjfm/colt_express_expansion_marshal_and_prisoners.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453888/normal_600789f0176f1.pdfIn PDF document text
    • http://kamefutebiwef.mywebcommunity.org/22928209429.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490138/normal_5fe87546ca302.pdfIn PDF document text
    • http://maxirem.mygamesonline.org/lingo_angielski_kurs_dla_pocztkujcych.pdfIn PDF document text
    • https://cdn.sqhk.co/tarolaser/ib78icE/server_build_pc_part_picker.pdfIn PDF document text
    • https://cdn.sqhk.co/wanoposuj/cmXEjiT/my_verizon_apple_music_not_working.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478132/normal_5fe25a2be99c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384633/normal_5fd66097c4aef.pdfIn PDF document text
    • https://cdn.sqhk.co/veludewozen/bYzhbnQ/plain_city_ohio_zip_code.pdfIn PDF document text
    • https://cdn.sqhk.co/jemowevu/KccijbI/vifofasojoxi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402963/normal_60086f74578be.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/kozewuposoridil/what_is_sarah_from_dance_moms_doing_now.pdfIn PDF document text
    • http://gototura.myartsonline.com/litesaxafikifoxisuzelo.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/daisy_powerline_1000_review.pdfIn PDF document text
    • http://lufevexos.atwebpages.com/alfonsina_storni_poems.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/39129708630.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwuzerijofa/cms_ed_medicine_list_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_off00011c6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C6B 5076 bytes
SHA-256: d1e41832f387dd7c88ee1d3d5cd396416a9165134b7e0704492d729674a2a772
font_01_sfnt_off00012dbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DBF 22000 bytes
SHA-256: 324b93de12f85a5c0ceaeb0ac830b1c26fa0e675f4961fb8672f22803b41b335

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