Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d25c079784d1ebb…

MALICIOUS

PDF

69.1 KB Created: 2021-02-28 14:05:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9104e6599da8e444e022331abe25e1b6 SHA-1: afaa422ff39c1eecfbb0d17722448115b9a11992 SHA-256: 2d25c079784d1ebb186db294194b02984056f4aeae6e31162539d010638a33e6
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://seumenha.ru/award?keyword=how+to+reset+a+kenmore+upright+freezer PDF link annotation
    • https://sibemawiwojaro.weebly.com/uploads/1/3/4/8/134887292/baruri_xudogawo.pdfIn PDF document text
    • https://julavatevimire.weebly.com/uploads/1/3/4/6/134669339/vebaxeforelabefa.pdfIn PDF document text
    • http://fuckfrsky.com/xaburexiaa8i0.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/gfmgcha/stormlight_windrunner_oaths.pdfIn PDF document text
    • https://cdn.sqhk.co/nizekidido/fJphfOj/baby_growth_chart_percentiles_canada.pdfIn PDF document text
    • https://cdn.sqhk.co/lazimafuxuxi/oifygew/12015688734.pdfIn PDF document text
    • https://muxixeronazuxup.weebly.com/uploads/1/3/4/5/134508557/lunuleloku.pdfIn PDF document text
    • http://wowmarket.info/final_fantasy_tactics_war_of_lions_ps4rm4yu.pdfIn PDF document text
    • https://cdn.sqhk.co/navozaxezini/djfNhiu/15779557530.pdfIn PDF document text
    • https://vilavabakawo.weebly.com/uploads/1/3/1/6/131607043/xavovegosevafela.pdfIn PDF document text
    • https://kigijogi.weebly.com/uploads/1/3/4/7/134702755/8907484.pdfIn PDF document text
    • https://fejaxipanegis.weebly.com/uploads/1/3/2/7/132712099/982346.pdfIn PDF document text
    • https://vemomomofaj.weebly.com/uploads/1/3/2/7/132740815/vozexuxexilibu.pdfIn PDF document text
    • http://vvd.bar/nazusutejaxivezb7cpk.pdfIn PDF document text
    • http://rasezatoxefu.mygamesonline.org/47883124303.pdfIn PDF document text
    • http://carishr.com/how_much_is_a_2006_honda_civic_hybrid_worth02uq1.pdfIn PDF document text
    • https://wewiruvikaju.weebly.com/uploads/1/3/0/7/130775929/rexibakosolufoj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c4a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4A0 5332 bytes
SHA-256: 18626faa97197c92c56318bf626d09df842cc3dc910d10df49198594fc52aef2
font_01_sfnt_off0000d6b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6B3 10096 bytes
SHA-256: 3bc7ea9bd0e30c83666cd91b24858e6f09c138d9931e270913aa208ef603dea5
font_02_sfnt_off0000f92f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF92F 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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