Malicious PDF — malware analysis report

Static analysis result for SHA-256 cba650f9cea5d685…

MALICIOUS

PDF

73.1 KB Created: 2021-03-13 20:51:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 26c8d48318d8d5c663aa66c560506a8d SHA-1: 66895dda455767761fef094d799f7a7a966a3736 SHA-256: cba650f9cea5d685e2f2094af4ba2276d5f00b098782173b57100cbc7d69a888
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-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://leonvi.ru/award?keyword=thea+stilton+books+pdf+download PDF link annotation
    • http://ganolegelaso.22web.org/2004_chevy_malibu_starter_solenoid.pdfIn PDF document text
    • http://pitushok.space/the_one_thing_you_cant_replace_john_mulaney_videoqrt19.pdfIn PDF document text
    • http://dujalubudekir.22web.org/fourth_grade_rats_book_report.pdfIn PDF document text
    • http://interior.estate/colors_in_spanish_worksheet_preschoolt2hrx.pdfIn PDF document text
    • http://viwoxufegoger.sportsontheweb.net/jasomorowaxonovabevokar.pdfIn PDF document text
    • https://cdn.sqhk.co/degavorofala/NhfEMja/shipwreck_grill_brielle_nj_08730.pdfIn PDF document text
    • https://cdn.sqhk.co/faxidopudome/RdeigpM/drowning_swimmers_need_crossword.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dopamirep.epizy.com/nagapojamosezib.pdfIn PDF document text
    • https://s3.amazonaws.com/filidabut/73744069694.pdfIn PDF document text
    • http://nivuzujanux.myartsonline.com/medivokosarapevavexitozej.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/dasafabinepot.pdfIn PDF document text
    • http://wubunulawu.rf.gd/alpine_mrv-f300_installation.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/blackest_night_tome_1.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/residential_network_cabling.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/fuzusuwopomujugekal.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/conceptual_model_research_report.pdfIn PDF document text
    • http://wuragumok.atwebpages.com/universal_logic_gates.pdfIn PDF document text
    • http://pilizitawew.rf.gd/51078133689.pdfIn PDF document text
    • http://laxuzoto.onlinewebshop.net/tafanoxemaxuloxakirofazu.pdfIn PDF document text
    • https://s3.amazonaws.com/kevava/16109970861.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/41774663212.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_off0000dffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFFC 5280 bytes
SHA-256: 7c20b41662b47078a4a6fb76d22c775e8995117f1ef5d8a763d59da97d9b3675
font_01_sfnt_off0000f1fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1FD 10824 bytes
SHA-256: 67d0c8bd20ac4c8909500eb4cd93c3c48526b978ea9d344f57bfa4be3102b332

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