Malicious PDF — malware analysis report

Static analysis result for SHA-256 191a5f47a403d130…

MALICIOUS

PDF

81.2 KB Created: 2020-12-30 08:46:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 2246f4bb23323e63683fca8cea403487 SHA-1: 3b896f03183e56c294d4193564f2cd7054c30659 SHA-256: 191a5f47a403d130f37e57ebabb8fe8bd289aae436c283b11a640cb01e72335f
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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.
  • 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://cctraff.ru/wb?keyword=retro%20bowl%20unlimited%20version%20ios In PDF document text
    • https://cdn.sqhk.co/boxokozofe/T9E2bkd/8467173310.pdfIn PDF document text
    • https://cdn.sqhk.co/vapezuwe/Ynjghxp/65974671884.pdfIn PDF document text
    • https://tefizaset.weebly.com/uploads/1/3/4/5/134587169/18108d07de426.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422877/normal_5fcf414f71349.pdfIn PDF document text
    • https://lulujazopo.weebly.com/uploads/1/3/4/7/134769354/a275095f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407756/normal_5fcb6f9bb41d4.pdfIn PDF document text
    • https://mexavabawidusa.weebly.com/uploads/1/3/4/3/134375000/budutej.pdfIn PDF document text
    • https://gixunilaw.weebly.com/uploads/1/3/1/8/131856646/8851396.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/sojebelevenex/malayalam_movies_2017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3fd0e37-ce07-46e8-8b0d-4264adf8ac42/castration_video_human_surgery.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_off0000ff37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF37 5060 bytes
SHA-256: 1a66b3519f0b2bac7f7887e28755f18dfb3e870af1257aaea9eefaccbd0bc658
font_01_sfnt_off00011070.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11070 12200 bytes
SHA-256: ffb0535d558e56fb466cd3f6e0527cd7ed2277e17a438469e501f851cd97893c