Malicious PDF — malware analysis report

Static analysis result for SHA-256 e43777cf89b88bff…

MALICIOUS

PDF

81.6 KB Created: 2021-01-21 03:59:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 5f0dcd16d83ea6efa7d16f238c2be79a SHA-1: 8dfd90e8bd5a08121de6336666d1a2f11e0aaa72 SHA-256: e43777cf89b88bff8c2f2162a9f3865483a6162d99988bc0d0c88af63509677d
154 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 routes users through malicious redirector infrastructure. 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/123?utm_term=i+can+be+your+hero+baby+lyrics+meaning In PDF document text
    • https://static.s123-cdn-static.com/uploads/4446390/normal_5fe5fd6116257.pdfIn PDF document text
    • https://cdn.sqhk.co/likamigid/Oiajjgo/king_road_brewing_company_menu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369905/normal_5f87e62c850e2.pdfIn PDF document text
    • https://cdn.sqhk.co/bawusipa/0mjdChj/superhry._cz_bubble_trouble.pdfIn PDF document text
    • https://cdn.sqhk.co/tefozakozup/gMijNPp/21492514686.pdfIn PDF document text
    • https://site-1167931.mozfiles.com/files/1167931/cdna_template_concentration_for_pcr.pdfIn PDF document text
    • https://site-1168222.mozfiles.com/files/1168222/4133603086.pdfIn PDF document text
    • https://site-1168290.mozfiles.com/files/1168290/riscos_biolgicos_no_ambiente_de_trabalho.pdfIn PDF document text
    • https://site-1173984.mozfiles.com/files/1173984/zafiwonulodaxipetamomipir.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/tosevud/wasufesivizusa.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/collective_bargaining_agreement_construction_industry_zimbabwe.pdfIn PDF document text
    • http://gipumupanaw.rf.gd/message_in_a_bottle_book_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pivetuzadujo/magazine_design_template_illustrator.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/hdfc_fixed_deposit_rates_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/54031180750.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000100af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100AF 5392 bytes
SHA-256: fb5d7102ced9330f02578ecdbd3e61c0f9ad64e7e4aa0914d0c3e8d94251eb20
font_01_sfnt_off000112e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112E2 11864 bytes
SHA-256: 2e8d8e8419d43d39bb7ac61afffd250f8a30e564c787244ca2217b786bdbec4c

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