Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9c248e721d8b41b…

MALICIOUS

PDF

76.9 KB Created: 2021-02-27 04:40:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-23
MD5: 55b165ac8a70ecf44f9d8808414632e1 SHA-1: a9ecb6eaa830f24960a39f716bbbb81eddd56eb4 SHA-256: e9c248e721d8b41b55e56e9cf3b44ef8a7c8edc8724efd0e21b7faf1d9b764bc
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://vilenefex.ru/strik?utm_term=book+report+template+3rd+grade PDF link annotation
    • https://cdn.sqhk.co/zixemoliz/jigq8id/monster_rancher_2_switch_us.pdfIn PDF document text
    • http://bigno.space/anatomical_heart_drawing_labeled684pi.pdfIn PDF document text
    • https://cdn.sqhk.co/zebapomiz/jdicuhj/warframe_planets_with_orokin_cell.pdfIn PDF document text
    • https://dojosofezi.weebly.com/uploads/1/3/5/3/135390984/bexupa.pdfIn PDF document text
    • https://cdn.sqhk.co/wafavalufa/fsjZGLt/85241464832.pdfIn PDF document text
    • https://cdn.sqhk.co/wojusipi/Hij2aic/nidapiz.pdfIn PDF document text
    • http://heartcenteredequestrian.com/tijofatomaxafowagipoaffd6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369655/normal_5ffa95cc8b425.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4528876/normal_6033ef2f93b2f.pdfIn PDF document text
    • http://citruss.space/the_original_dantes_inferno_booky732p.pdfIn PDF document text
    • https://mijutadozas.weebly.com/uploads/1/3/4/5/134590660/lugutugobi.pdfIn PDF document text
    • http://parkingtest.xyz/mubibumoga2gb37.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383582/normal_5ffd4100862a6.pdfIn PDF document text
    • http://b0xberry.online/rapunzel_dress_disneyxm35w.pdfIn PDF document text
    • http://se-mrush.com/how_to_make_soft_bread_using_bread_machinemdebw.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000f09b.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000f09b.bin)
    • 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 extracted file (font_00_sfnt_off0000f09b.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f09b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF09B 5376 bytes
SHA-256: a42bfa8c25a45917adbc0f12562d4a6e1bc89c60ca39ea311bdce49a8cc8e5af
font_01_sfnt_off000102d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102D6 10928 bytes
SHA-256: 04391f4164625a0a4a4cb6a8a835c0d2cd59f48ecb8649715d2507a9feef4318