Malicious PDF — malware analysis report

Static analysis result for SHA-256 96d382954e8a501d…

MALICIOUS

PDF

88.6 KB Created: 2021-04-05 23:29:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: dfbfd30d04d45920c3a3c9b7b0f2175a SHA-1: 11bb695fcd190e13ffe7fd95398b74dbb0fe4fb8 SHA-256: 96d382954e8a501d54cc6c832f0eb50452ea7e603832fe10179701add900ec65
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/wix?keyword=counting+atoms+worksheet+doc In PDF document text
    • https://cdn-cms.f-static.net/uploads/4385422/normal_603f7b17a1d9c.pdfIn PDF document text
    • http://vomamafawib.scienceontheweb.net/los_doce_economistas_mas_importantes_de_la_historia.pdfIn PDF document text
    • http://vanimerukaguto.scienceontheweb.net/17915083222.pdfIn PDF document text
    • http://vigetatefix.iblogger.org/graphic_design_digital_portfolio_templates.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411686/normal_60633d0dc7e85.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485149/normal_5fde65a11fb60.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372987/normal_5fcd42362bf18.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/xalexojaxipud/29608452816.pdfIn PDF document text
    • http://panexorumilogim.myartsonline.com/tl-wr841n_firmware_upgrade.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/tv_guide_sydney_gogglebox.pdfIn PDF document text
    • http://tesoxukezeziles.epizy.com/zotutenulenil.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/logo_quiz_game_level_3_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/bonjour._msi_free.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/39240439183.pdfIn PDF document text
    • http://liroporuki.myartsonline.com/poxefelujukerisudozowu.pdfIn PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/gifotipumigubefe.pdfIn PDF document text
    • http://batefagut.epizy.com/office_leave_application_format.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74fcdd34-7d0b-4a91-a3c6-56053d37b2b6/othello_act_1_scene_3_comprehension_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/cabal_mobile_wizard_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f93f659-c55c-44e3-99a6-5da15f609f43/18033977984.pdfIn PDF document text
    • http://kakasis.onlinewebshop.net/envision_florida_algebra_2_textbook.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/fujixajime.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/plantronics_c054_settings.pdfIn PDF document text
    • https://s3.amazonaws.com/pujinit/36397720145.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f53b20cf-b13a-4b4b-8e10-981fb6138187/23487146421.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA39 15492 bytes
SHA-256: fa37bd14e388e52615bc9f4eba75743636c3bc2c2f55c9231b3c049231276bcd
font_01_sfnt_off00011b8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B8F 5380 bytes
SHA-256: f8fd35ddb3f72122783d7d0db9254ff7b89593c3e212ebf10416b315c5ff9d04
font_02_sfnt_off00012dc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DC3 10892 bytes
SHA-256: ae55e99b0496158bcd5b55e141a9954c89b43bb8209b6a0ee6c9e53226890d10

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