Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cc7eb98b277c0ee…

MALICIOUS

PDF

86.1 KB Created: 2021-03-16 08:14:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: e6034d10391a8eaa270ca9f3eaefecb3 SHA-1: 546b324c5387dfdcb9fe8b5f655eaf2cb3506ef9 SHA-256: 5cc7eb98b277c0ee6af0d7648b2abb2761c06853f030ec2c5c2771577df303ae
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file was flagged by multiple heuristics as a credential phishing attempt, specifically impersonating eBay. The embedded URL leads to a domain that is unrelated to eBay and uses a keyword related to gaming, suggesting a lure to trick users into providing their credentials. The ML classifier and ClamAV detection further support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://vilenefex.ru/wix?keyword=fortnite+account+generator+2020+xbox.
  • 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://vilenefex.ru/wix?keyword=fortnite+account+generator+2020+xbox PDF link annotation
    • https://cdn.sqhk.co/nobipajami/Pdohigi/tower_defense_simulator_roblox_codes.pdfIn PDF document text
    • https://cdn.sqhk.co/xovikojux/3xicvzF/attendance_management_system.pdfIn PDF document text
    • http://waguzeb.66ghz.com/keynote_intermediate_student_s_book_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/ruvonusebex/jiijnij/wallpaper_of_word_sumandal.pdfIn PDF document text
    • https://cdn.sqhk.co/jigidokasaga/gyvxhje/lasimixisudebilesu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://womejus.rf.gd/lowexuje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b08db1e9-dc61-4b1d-9db8-d0dde4c4dae5/53506899817.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f9c8685-1ffe-4f61-822b-88b4c57d9620/the_origin_of_national_consciousness.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a368947-797c-440f-b384-3b06886a33fc/ribawe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb544a82-05ed-4da2-a3e2-7a8fa2f0be22/lit_review_sample_research_paper.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/34120569606.pdfIn PDF document text
    • http://xakodalomidu.rf.gd/behance_presentation_templates.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8314df49-fb2a-4730-84db-3c9d0de3fad1/jagel.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/damuputatijotopupil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7125949-4498-4c54-b0c6-f6bb52065d37/adapter_design_pattern_real_time_example_in_java.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d82083f-1f70-485b-ae8c-8c954e5b66ab/presonus_studiolive_24.4_2_manual_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/god_of_war_ps4_strategy_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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fafe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAFE 5196 bytes
SHA-256: 3489dce1206d741f3cf99dd950d2ab3fb6f0480f00218386e3f09063cfdacdc4
font_01_sfnt_off00010cbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CBD 12328 bytes
SHA-256: 308b9c20f91a527fb96fa2d120e7150d687fc85849f25933b613c02e3a889d28
font_02_sfnt_off0001364f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1364F 16100 bytes
SHA-256: 2f34e2a47881d07bf5e0ddcec7fa78b88f5f828504524ebfdba63e029b22e37e

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