Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed6ee9bea4e89e1c…

MALICIOUS

PDF

72.7 KB Created: 2021-01-19 13:49:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: a69dc8783652ba7c3e4abae39de05562 SHA-1: 35b428f4a8792175e6573fc8ce60d4a461ef895d SHA-256: ed6ee9bea4e89e1c5da182260fae8e4989668c20c209b7b7c91a80f74c592dab
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://yafferge.ru/wb?keyword=run%20ninja%20run%203%20hacked In PDF document text
    • https://site-1183169.mozfiles.com/files/1183169/rutherford_nj_police_reports.pdfIn PDF document text
    • https://lemagijazifar.weebly.com/uploads/1/3/2/7/132710763/8877501.pdfIn PDF document text
    • https://site-1166618.mozfiles.com/files/1166618/39356335254.pdfIn PDF document text
    • https://cdn.sqhk.co/rilowikapaz/yIK5hjX/67523223277.pdfIn PDF document text
    • https://cdn.sqhk.co/lapitobexeva/4jfyRie/flying_dragon_robot_simulator_transformation_war.pdfIn PDF document text
    • https://cdn.sqhk.co/waxigapo/higiVid/loboluz.pdfIn PDF document text
    • https://cdn.sqhk.co/bebetirifam/Qjjhdib/1620887178.pdfIn PDF document text
    • https://cdn.sqhk.co/nawafoxobok/cgejdXz/dwayne_johnson_tequila_total_wine.pdfIn PDF document text
    • https://giboramogu.weebly.com/uploads/1/3/4/6/134627050/2111216.pdfIn PDF document text
    • https://site-1171953.mozfiles.com/files/1171953/34297735334.pdfIn PDF document text
    • https://gemiletux.weebly.com/uploads/1/3/2/6/132681217/1819018.pdfIn PDF document text
    • https://cdn.sqhk.co/pininipata/grjiVkD/oxygen_tank_regulator_washer.pdfIn PDF document text
    • https://jezaxegare.weebly.com/uploads/1/3/1/3/131380636/kuxameribaxusoviti.pdfIn PDF document text
    • https://pinonomobeberex.weebly.com/uploads/1/3/4/3/134318871/7554340.pdfIn PDF document text
    • https://xososikanezav.weebly.com/uploads/1/3/4/8/134892973/resijiw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e0a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A7 5128 bytes
SHA-256: b0e5ff88eff61fa0e4ec21f53d03350e541c7856c595fc0fe1e3827fc8d8891a
font_01_sfnt_off0000f21b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF21B 10584 bytes
SHA-256: 89cda55c8265a3593971f85fdb7a1ec9984df389013fe6f1acc0143694048132

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