Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e04731e3cf98cc…

MALICIOUS

PDF

63.5 KB Created: 2021-02-14 05:57:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a03cbf0dccf2f8f71b9f49368235563c SHA-1: 8dce7f8448e0ee822a9cf99b335f2a5bac51e668 SHA-256: 34e04731e3cf98cc08de0a92b5bd3b024c45d2cc19cf5123bda12333267c36bb
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://seumenha.ru/wb?keyword=oxford%20handbook%20of%20accident%20and%20emergency%20pdf PDF link annotation
    • https://cdn.sqhk.co/wojipezusax/ggRhjLb/fun_car_racing_typing_games.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486971/normal_5fdee83e075d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378827/normal_601e2cefe4789.pdfIn PDF document text
    • http://piter.store/rugaferimapifekafudiwevm1iox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382974/normal_600aa0c275279.pdfIn PDF document text
    • http://saratov.ooo/cch_xa_bnh_chn_trn_zalo6jj5s.pdfIn PDF document text
    • https://cdn.sqhk.co/mudemodox/egchihg/usher_raymond_new_songs_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/wefikoke/jgi2jhs/70168430981.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370054/normal_601be82bb52f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491439/normal_601b593401a9d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446263/normal_600925e0e1b93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388293/normal_5fdc350b7c93e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415518/normal_600402ec0c4b1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://puwurivetib.epizy.com/kubojukerovaj.pdfIn PDF document text
    • http://filamejukak.epizy.com/kolijigagev.pdfIn PDF document text
    • http://xosumuzav.epizy.com/2018_ethical_fashion_report.pdfIn PDF document text
    • https://s3.amazonaws.com/poresi/bismillah_font_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/nisugamezafijiwebovapik.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_off0000b9a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9A0 5760 bytes
SHA-256: 6631c272ee78decef867ae3026cd09dfb358b4905d57429f979e188036a93ae5
font_01_sfnt_off0000cd1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD1B 10836 bytes
SHA-256: ff10e4e7f118b9ff8c16576ab850f6b4e4b34e0433c96adffaf1ce1a01a6e789