Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf6ee7dc3e45c585…

MALICIOUS

PDF

78.4 KB Created: 2021-05-18 21:32:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 866ad2e17144ecee92183288bdabfdd1 SHA-1: 70e2714c7a09ece2e7840eec8a8e48c3f0717585 SHA-256: cf6ee7dc3e45c58541804523aedc68c67ed14c4a823a9a8d0bbb85f8f02eec77
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 0.9998

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://zajinet.ru/strik?utm_term=how+fast+can+a+125cc+quad+bike+go PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4413457/normal_60053a5756165.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448540/normal_603fa5dd8857e.pdfIn PDF document text
    • http://xuvivok.22web.org/punurezipiwem.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366020/normal_5fe0c8440a7fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427809/normal_601808e1a6d3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374984/normal_5fdbb0ed94ce5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377663/normal_60620bdac19fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452398/normal_601a7e9bf3f25.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6883c995-150a-4e13-b623-ed69b045bfb8/93380401832.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/xexorogonuxagapibeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa595511-6a37-471c-b6ac-de9ac41422c1/our_night_sky_great_courses.pdfIn PDF document text
    • http://paxajuleki.rf.gd/harry_potter_and_the_order_of_the_phoenix_book_criticism.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/129c7ea8-7397-4387-a540-71eef060524b/zesedivorurajejubezolit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2e27efb-b5ba-4614-a910-c4593d67dba0/world_war_1_history_project_ideas.pdfIn PDF document text
    • http://rojelolazekozox.rf.gd/property_development_business_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/tiwiko.pdfIn PDF document text
    • https://s3.amazonaws.com/pulujolatepuv/jkbose_12th_date_sheet_bi_annual_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/gomofejulamapanogevud.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/troy_bilt_tb130_xp_oil_type.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/wesorevagedafeditenoza.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_off0000f1cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1CF 5752 bytes
SHA-256: 4bd657ca65af30cb1cd054643dc3df04cbac40da92944e8c14a85892301261d2
font_01_sfnt_off00010596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10596 11352 bytes
SHA-256: 326dc9e5c426123fbb64c7b28829cf509702bff7e288964b967f384549599a89

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