Malicious PDF — malware analysis report

Static analysis result for SHA-256 b82694aa3efd9574…

MALICIOUS

PDF

74.1 KB Created: 2021-03-03 22:51:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d83c11bd895c3f09574151b96f43e9d1 SHA-1: f1bf7e48c70cd769d1b88a60682a420e2157ab79 SHA-256: b82694aa3efd9574db7a5649163e8814a5bf2ac411d2ee0b9f5fb33743e03810
126 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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://mezovuduw.ru/wix?keyword=angry+birds+2+mod+apk+download PDF link annotation
    • https://cdn.sqhk.co/vilubofi/jigfiey/zamemaxukika.pdfIn PDF document text
    • http://dusejetiwogodad.getenjoyment.net/epson_xp-200_printing_problems.pdfIn PDF document text
    • http://pugisapi.mypressonline.com/calculus_for_life_sciences_wiley_solutions.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458848/normal_603cba4c96812.pdfIn PDF document text
    • https://cdn.sqhk.co/labokezugumu/igxdC5g/japoxebenogir.pdfIn PDF document text
    • http://xamoxipuwizutux.scienceontheweb.net/fender_fuse_download_windows_7.pdfIn PDF document text
    • http://wapividazofar.scienceontheweb.net/rubedotisugepapapamaf.pdfIn PDF document text
    • https://cdn.sqhk.co/kavuluxaja/j74ifMk/50030735830.pdfIn PDF document text
    • http://talajifit.mywebcommunity.org/11842273295.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448980/normal_5fc7c52c3ebd5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386089/normal_6006a9193395f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419628/normal_5fd7dc6f109dc.pdfIn PDF document text
    • https://cdn.sqhk.co/rorefevobo/hergghj/15500208178.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/najubu/which_rapper_just_passed_away.pdfIn PDF document text
    • http://jemileti.atwebpages.com/best_way_to_get_a_new_pair_of_glasses_audio.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_off0000e10d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE10D 5796 bytes
SHA-256: d19194116c7f6732ac6d2a8b0c2e58fc346f9f30b8d94b7535dda0e664f60a72
font_01_sfnt_off0000f4cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4CB 12076 bytes
SHA-256: 0c874874ef47f31a733a2b7f755aedb95fd0b12208f4ca7845d53df0fa615516