Malicious PDF — malware analysis report

Static analysis result for SHA-256 336e29b4b1b64164…

MALICIOUS

PDF

85.5 KB Created: 2021-02-28 13:44:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0504607fc75a6e7b08fc2ec57815add4 SHA-1: 127cb834ceedf55a81ed74fdd3fbb5090c5fcfb5 SHA-256: 336e29b4b1b64164c39a36b51878bc846d883aa06abbc3fcfd1de7b9bab126a3
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://botokaw.ru/strik?utm_term=types+of+angles+in+parallel+lines+worksheet PDF link annotation
    • http://roxelejabojafe.scienceontheweb.net/pijin.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390661/normal_5fe5d825504fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371788/normal_6008e5ae02a10.pdfIn PDF document text
    • http://vumamanepu.sportsontheweb.net/zudokorez.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409813/normal_600405a8c7254.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413223/normal_5fdc6f9c98a45.pdfIn PDF document text
    • http://xegazinijitup.mywebcommunity.org/63741574720.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473052/normal_5fd8e299eb443.pdfIn PDF document text
    • http://jaralet.getenjoyment.net/batman_the_dark_knight_returns_part_1_full_movie_download_480p.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448733/normal_602572dd9ffd3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tuwutexo.onlinewebshop.net/how_to_take_apart_a_maytag_maxima_dryer.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/awesome_mix_vol_2_zip.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/sofa_3d_cad_block_free.pdfIn PDF document text
    • http://vorisenunajix.myartsonline.com/68692462215.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/tojeleduwixew.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/luzib.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_off0000fa9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA9E 5368 bytes
SHA-256: 1f49f6c8e39444ac83f018a0366c309eb7ef2ff65d8292119c156d6de50190c6
font_01_sfnt_off00010cfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CFA 11268 bytes
SHA-256: 19a290b579a149f8c62bbf76eb9dca72f176ded9b9555e077ddc9f3b9255bae9
font_02_sfnt_off00013354.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13354 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073

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