Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ea3cd925794f259…

MALICIOUS

PDF

64.7 KB Created: 2020-12-18 00:22:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f44dae7a3711996cbfa0846b8a575f1f SHA-1: d4d7dd46e5678e48e4cfe8944a7d6d75b03a17d8 SHA-256: 0ea3cd925794f259797d3f81f7e04c38ba6822704cd34d4f518ae935491f0f69
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://traffmen.ru/strik?utm_term=the+forge+of+god+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4424364/normal_5fa8799da5f26.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/dudurat/bihar_daroga_vacancy_2017_notification.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f828e6a4-7b82-4deb-9c24-cc45b7471c34/ace_hardware_franchise_price.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfd56316f6d44b07b8b81c/t/5fc260d518e72e5fdb24a889/1606574296301/close_up_pics_game_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4c3d0a5bc066edfbe5dc3/t/5fca290e9bc93d20d9b708aa/1607084302893/bodupudoserape.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc659b6116eb00e3c713032/t/5fccaf455177ea328cbe3c3d/1607249734972/pencil_sharpener_blade_angle.pdfIn PDF document text
    • https://s3.amazonaws.com/sibenuvokiwuz/dofazenemabuwin.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcef362a633b27d3ae57931/t/5fd62d9072b1137fa96f2d65/1607871889297/61099082567.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5723f9f-8b33-420f-ad18-bc9a7944e4fa/354187780.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6695bbda9c57a97e3e323/t/5fcf17d805f6f27807527d19/1607407577554/wogawor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1d70edd-d684-4042-9f7d-ac96ffcf6b63/ragitusu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c8b62bbd74065805e346/t/5fc3450df8cdb769c64cc910/1606632719052/4106077478.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc29eebabaecd33182d3b3b/t/5fc4c1d13485235c865c2e60/1606730196167/lowes_community_garden_grants.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_off0000c493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC493 4832 bytes
SHA-256: 2c92a145651e6fef80cdcfe5954a614863e609f4276d83d79c7abc6275bd76b3
font_01_sfnt_off0000d503.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD503 9752 bytes
SHA-256: fdfb565fd5ceac00c98e80b0ce4950cdceef45528e776a061bebcd874df80ac1

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