Malicious PDF — malware analysis report

Static analysis result for SHA-256 453f6098c86f4cfc…

MALICIOUS

PDF

64.7 KB Created: 2021-01-10 21:44:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: dd7635c3ced1aac8f5e4c68caba09599 SHA-1: eb41f678789b99fd822b9c696fb9880f098f58a6 SHA-256: 453f6098c86f4cfc503d82c9a245d0b274ec68a9f1c0c362618057ea54404f79
162 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://traffine.ru/wb?keyword=time%20traveler In PDF document text
    • https://static.s123-cdn-static.com/uploads/4486522/normal_5ffb23f43f9c3.pdfIn PDF document text
    • https://cdn.sqhk.co/sepufaziru/sgL6Bhj/tasopobubi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381081/normal_5f9a3d9dd716d.pdfIn PDF document text
    • https://site-1234383.mozfiles.com/files/1234383/ragdoll_racing_unblocked.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424991/normal_5ff61811904a6.pdfIn PDF document text
    • https://cdn.sqhk.co/libegavezu/kIgfrjb/we_tag_for_instagram_pic.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450864/normal_5fad3e5518daa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420934/normal_5fa7661162a8a.pdfIn PDF document text
    • https://traffine.ru/wb?keyword=time%20traveler'%20s%20wife%20netflixIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/towibogirik.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/hastelloy_x_sheet_metal.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/malayalam_calendar_2019_may.pdfIn PDF document text
    • https://s3.amazonaws.com/mevuzokekenojab/soundcloud_premium_apk_hack.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/benchmade_infidel_3300_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/graphic_design_portfolio_website_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/kotakotuberimamalir.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_off0000be6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE6C 5116 bytes
SHA-256: c0d4852c329be983ecdfb84728dce8db3dec99ec936c46bc6c0472c4988b937c
font_01_sfnt_off0000cfd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFD6 11184 bytes
SHA-256: c263045bee1821dd672d640fb02f20fabad4235c061cce6ae3a6d638a78cc374