Malicious PDF — malware analysis report

Static analysis result for SHA-256 232e89195484304e…

MALICIOUS

PDF

90.7 KB Created: 2021-03-03 10:09:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 71e119ef9b5f6988be62f25e86befbf8 SHA-1: 0427516910c983f2db3d4c870e3fb92e30c11f8a SHA-256: 232e89195484304e6f931ff335264aee09aef12efff133887f08c83382dbf9ce
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://kuzutuzo.ru/award?keyword=lazy+keto+meals+for+beginners PDF link annotation
    • https://cdn.sqhk.co/xuzuvazol/3hd7hc3/55126959539.pdfIn PDF document text
    • https://fumuradowije.weebly.com/uploads/1/3/0/7/130739974/nubazik_narazawuj_jalukovi_xinup.pdfIn PDF document text
    • http://vimobewawulipiz.mypressonline.com/kindle_fire_hd7_4th_generation_cover.pdfIn PDF document text
    • https://wavuzujez.weebly.com/uploads/1/3/1/4/131406867/7cbf67769e1.pdfIn PDF document text
    • https://pevusipifo.weebly.com/uploads/1/3/4/8/134863194/1991369.pdfIn PDF document text
    • https://cdn.sqhk.co/diratukuz/hhegcjf/creare_stickers_su_iphone.pdfIn PDF document text
    • https://bisutofudumi.weebly.com/uploads/1/3/4/6/134663563/f5be2e3a566cad.pdfIn PDF document text
    • http://amsidgi.xyz/nemurowalec5r.pdfIn PDF document text
    • https://cdn.sqhk.co/gikokimofegi/ysidWgM/zombie_simulator_z_premium_mod_apk.pdfIn PDF document text
    • https://zaridonuxubotu.weebly.com/uploads/1/3/0/7/130775126/pofesubi.pdfIn PDF document text
    • https://bigufoxorifef.weebly.com/uploads/1/3/1/8/131871864/68841d3bd69.pdfIn PDF document text
    • http://nebemor.mywebcommunity.org/31352239057.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://namepafubi.atwebpages.com/costanzo_physiology_6th_edition_download.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/xabokedopewajejepubu.pdfIn PDF document text
    • https://s3.amazonaws.com/bibejovixapis/longman_dictionary_for_pocket_pc_free.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_off000127c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127C9 5384 bytes
SHA-256: 2aa06dd28b140c369717bea18cf4f900a389ab74215ee14485b289bc23becd51
font_01_sfnt_off00013a26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A26 10592 bytes
SHA-256: a9ddaf6fe4688f54b9b9fa0e8195d15969207f0b4951a9bf1f19a9c3264fbdc9

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