Malicious PDF — malware analysis report

Static analysis result for SHA-256 53c75d0a29e0161f…

MALICIOUS

PDF

71.7 KB Created: 2020-12-02 08:17:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 40649496328ffca23587d375d11a586d SHA-1: de10b15234e23f5e73ed9dc9538490ff30d87966 SHA-256: 53c75d0a29e0161fa6cad037e45058a48372a48dcbe99b39dc8961e9104e9c61
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 0.9997

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
  • 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=exton+train+station In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366665/normal_5fac3beb7ee9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456122/normal_5fbc8cc218bcb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372085/normal_5f9fbd67e7fb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401558/normal_5f9420ececba4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369305/normal_5f9e52655326f.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/zugutixe/nuzobapumunoxa.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2e067a13a450bab010c7c/t/5fc515dee18c5c478e9c7a38/1606751711445/teoria_de_conflicto_trabajo_social.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e110403f5353fd95a22f/t/5fc11be73570fb44d12a9f83/1606491117425/cours_droit_patrimonial_de_la_famille.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/motu_patlu_cartoon_mp4_3gp_video.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/bses_duplicate_bill_print_online.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/blue_howlite_power.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/app_china_free_ios.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/muzzle_flash_after_effects_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/browsec_extension_for_chrome_android.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/joker_2019_full_movie_download_free.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 1

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_off0000de17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE17 4672 bytes
SHA-256: 2a8382c64f80ebd2722d635bd7e5bd5e1c87ba2e74a175fd4986093f21371182
font_01_sfnt_off0000ee09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE09 10748 bytes
SHA-256: ad5e66fd31364aaee44d6dddb43a6e8676cfaa02eb6b06d5ef46a0b03c52a2d3

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