Malicious PDF — malware analysis report

Static analysis result for SHA-256 6506790e2bada32f…

MALICIOUS

PDF

80.7 KB Created: 2021-05-10 20:37:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4fd7adf4443a47ad4515fb3571ac4572 SHA-1: 8f0f116ce4c78553f033333574a594efb48dec15 SHA-256: 6506790e2bada32f30e95734e0b9655283acce51fd7f09bb88801692f0c716a0
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'botokaw.ru', which is likely used to deliver a secondary payload or conduct phishing. The document body, though heavily obfuscated, suggests a lure related to a 'Python pandas tutorial', aiming to trick users into visiting the malicious link.

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://botokaw.ru/strik?utm_term=python+pandas+tutorial+w3schools PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476577/normal_6052b2bc0cc5c.pdfIn PDF document text
    • https://cdn.sqhk.co/madufuxenuw/iKqidgh/high_school_crush_my_first_love_game.pdfIn PDF document text
    • https://cdn.sqhk.co/lamiwifa/iaeNdjh/wallpapers_hd_4k_games.pdfIn PDF document text
    • https://cdn.sqhk.co/tisufupujeli/dTN3jtu/define_adamantine_luster.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375515/normal_5fd794a2d6a70.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/glkiijh/37947139217.pdfIn PDF document text
    • http://nowtorrentz.com/the_complete_green_letter_book_lovefss3n.pdfIn PDF document text
    • http://socialwave.me/factors_affecting_soil_erosion_slideshareqmoam.pdfIn PDF document text
    • https://cdn.sqhk.co/lupekute/0ihaiih/lucky_kannada_video_songs_download.pdfIn PDF document text
    • http://kinorio5.xyz/antares_autotune_for_adobe_auditionydg6k.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503533/normal_605917521bdd1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447084/normal_5fe3d74a21e91.pdfIn PDF document text
    • https://cdn.sqhk.co/nilesatu/TUGhuib/greek_villas_for_sale_santorini.pdfIn PDF document text
    • https://cdn.sqhk.co/givifevulo/AgjgjsG/63354806642.pdfIn PDF document text
    • http://photoforce.ru/443891174638lipi.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/moduxanakuri/runosedufesugisakewusu.pdfIn PDF document text
    • https://s3.amazonaws.com/varoximu/rocketstock_free_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/2798955886.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/zodiac_signs_grendel_chapters.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/engagement_invitation_templates_for_photoshop.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/green_bay_packers_davante_adams_injury_report.pdfIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/guranefiridivareb.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_off0000fa60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA60 5520 bytes
SHA-256: 9f8be18c9dd06d1a924f497af09d6e929a6ebae1266d3bcd80fa099d8e13ac48
font_01_sfnt_off00010d34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D34 12032 bytes
SHA-256: f7800680ce60b998978bb445e427172d4b42a43ec57e5d69de6e10f6d2c746eb

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