Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ed94740a5a3b734…

MALICIOUS

PDF

96.1 KB Created: 2021-03-15 21:46:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 8971a8167c574c89e6bf894c12f2de21 SHA-1: 946e509a307f99202d001ce4b2d3835af65ad14f SHA-256: 2ed94740a5a3b73407fc6a89cbcb6ee6debe31087cb88b2d639503ff94f5a981
96 Risk Score

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 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://midufefew.ru/wix?keyword=uncharted+waters+online+aide+guide PDF link annotation
    • https://cdn.sqhk.co/dixufeja/bhjhfic/sustainable_development_goals_sdg_initiatives_nursing.pdfIn PDF document text
    • https://cdn.sqhk.co/tewokozogop/aiiGSig/warpigs_galaxy_citra.pdfIn PDF document text
    • https://cdn.sqhk.co/xaloridinef/cjeO1hk/mixuravenewarofavubex.pdfIn PDF document text
    • https://cdn.sqhk.co/gepabafi/icSidij/autodesk_revit_2019_architecture_basics.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/xixonu/8d_technology_audio_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/guide_installation_livebox_4_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/dipafuxe/vewosegusikuton.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/panasonic_kx-tga410_troubleshooting.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/bevufilamuronag.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/vupezufitigedibujuruvabe.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/aligarh_movement_book.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/20613840836.pdfIn PDF document text
    • https://s3.amazonaws.com/gasodamuza/lodidijepetorezomeguvug.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/almost_famous_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/lasubatijugikovidogizaba.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_off00013b42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B42 5284 bytes
SHA-256: afa7f6cec766a53b6e58cc719b2e6165d8e647cf62a992141d6d5eb5a0443474
font_01_sfnt_off00014d46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14D46 11212 bytes
SHA-256: 90e39287c1db467661cc9783606af64947ec758f3a1e1accf206b7810a829490

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