Malicious PDF — malware analysis report

Static analysis result for SHA-256 e650ded3ea8c8f46…

MALICIOUS

PDF

89.8 KB Created: 2021-03-08 15:59:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 845116e2c570ed999d831e3dfd0e9fe3 SHA-1: aacbd413e99aa798975650510f5c647ae0936d90 SHA-256: e650ded3ea8c8f46e18a74e67d1aa5d2da295047df2e1e9ae71b61e46f0592e0
104 Risk Score

Malware Insights

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

The PDF contains an embedded URL that leads to a suspicious domain, likely intended to trick the user into downloading malware. ClamAV detection and ML classification strongly indicate malicious intent, consistent with a phishing lure for a free download. No scripts were extracted, but the PDF structure and embedded URI point towards a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://soxebez.ru/award?keyword=ageless+body+timeless+mind+full+pdf+free+download PDF link annotation
    • http://xenejesujotolud.mypressonline.com/liref.pdfIn PDF document text
    • http://henrysavbr.site/zeguvagojtok1.pdfIn PDF document text
    • http://vivekawiga.sportsontheweb.net/best_mythology_books_for_adults.pdfIn PDF document text
    • http://lotto-investclub.com/what_is_the_trichromatic_color_theory8s66k.pdfIn PDF document text
    • http://zugapuvu.mywebcommunity.org/nuvodeguwawetudazajakono.pdfIn PDF document text
    • http://olx-delivery.cc/riposikojuwanubisozawagox0ihzy.pdfIn PDF document text
    • http://interior.estate/how_to_adjust_my_honeywell_thermostatn7tan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369502/normal_6033a6427d8e1.pdfIn PDF document text
    • http://davupopebuwiser.sportsontheweb.net/the_visual_display_of_quantitative_information_goodreads.pdfIn PDF document text
    • http://larebalin.mypressonline.com/ryobi_backpack_blower_ry38bp_parts.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453326/normal_5fe572c88db40.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465559/normal_60072b1be41ac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://supuwevul.atwebpages.com/5333893146.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/practical_management_science_4th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/vebenok/frontiers_in_plant_science_template.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/barbie_dreamhouse_adventures_full_episodes.pdfIn PDF document text
    • https://s3.amazonaws.com/tugumeb/gafirelusiritedom.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_off000121d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121D9 5684 bytes
SHA-256: ae746295b8c765127240114a3387ef55e1c397a3e516fab1b915b3cb5291c4e9
font_01_sfnt_off00013536.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13536 10816 bytes
SHA-256: 9a35720ff20088e911bd7cfc9f9417c1f94891fe9dfbb40b2d3bb7dc01843e35

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