Malicious PDF — malware analysis report

Static analysis result for SHA-256 3106159170aede8a…

MALICIOUS

PDF

76.4 KB Created: 2021-02-13 12:02:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: a6c84786caae7395b4f6192e2c70cb3f SHA-1: c0d0e0325cf7c844a33c34607c38d1b5d3af9ff6 SHA-256: 3106159170aede8ae24aaf8c60f8a244e10b9304ac2d0f2edfdcab28336505e1
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a malicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a harmful resource.

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://baarspo.ru/wix?keyword=rebel+net+crm PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4392207/normal_5fccb6d80f944.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482619/normal_5fd2c9d4209a7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489852/normal_5ffc7a9442a74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467950/normal_5fe994655d49b.pdfIn PDF document text
    • http://jijufik.22web.org/inscription_leveling_guide_cataclysm.pdfIn PDF document text
    • https://cdn.sqhk.co/kekotenonaxu/Qzfiiii/codeboxx_technology_corporation.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365600/normal_6009a5ca36af3.pdfIn PDF document text
    • https://cdn.sqhk.co/xipitufekaru/jRWwrIl/first_day_of_spring_semester_2020_csun.pdfIn PDF document text
    • http://trastenmyqort.online/candy_crush_soda_saga_unblocked_gamessw7bn.pdfIn PDF document text
    • http://lnstagramsupportinfo.com/84411218340emvs.pdfIn PDF document text
    • http://fortuneocredit.com/47362696005b99tf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415065/normal_5fcf11d8c5abb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448540/normal_5ffcb3ac3d5de.pdfIn PDF document text
    • http://upgrade4me.com/ripodurzbki.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/egfieuB/free_one_colour_cross_stitch_patterns.pdfIn PDF document text
    • https://cdn.sqhk.co/dijowasedop/ifgcjj2/tazomuwikenitosotegi.pdfIn PDF document text
    • https://cdn.sqhk.co/kujotukil/gigyhjD/archery_games_denver_coupon.pdfIn PDF document text
    • https://cdn.sqhk.co/vagofedewat/nhgNdgi/34263471534.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sipitifijuju.epizy.com/jozuvoxoxexedogitazipo.pdfIn PDF document text
    • http://vuvuvemalazot.epizy.com/swat_callouts_lspdfr.pdfIn PDF document text
    • http://fusuzuveraku.epizy.com/93223735522.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_off0000edf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF5 4704 bytes
SHA-256: 0a0255ac011736cf94b0293d2cc16e26fe2483b4168f10b2d0032a9cd5c5854d
font_01_sfnt_off0000fde6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDE6 10836 bytes
SHA-256: d50176875819cd496236b51bfed0f7d1c06a413145f059388fa82a9d64d5c7d0

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