Malicious PDF — malware analysis report

Static analysis result for SHA-256 87ceede237927d77…

MALICIOUS

PDF

73.2 KB Created: 2021-02-25 04:46:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5223ca7d2249ecfae245c6291367465b SHA-1: e6d5878150b5b6119df30375ab3b1000aeed7466 SHA-256: 87ceede237927d77cac0e3f12fbc1c9134ec5ca3e0d51665626bb73c2574410a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=conversions+activity+dimensional+analysis+answers PDF link annotation
    • https://felilediwifagid.weebly.com/uploads/1/3/1/4/131453780/6fc3fa1b08c6220.pdfIn PDF document text
    • http://yogist.fun/taloxuraxuixzcp.pdfIn PDF document text
    • http://chempion.coffee/spiritual_warfare_bible_nkjvunwdb.pdfIn PDF document text
    • http://repair-telefonov.ru/career_opportunities_after_12th_sciencemhp6q.pdfIn PDF document text
    • https://labimatejodo.weebly.com/uploads/1/3/2/3/132302966/larababekanal.pdfIn PDF document text
    • https://kezozebajex.weebly.com/uploads/1/3/4/2/134265808/5362654.pdfIn PDF document text
    • https://jirakeleda.weebly.com/uploads/1/3/5/9/135992973/23f7100.pdfIn PDF document text
    • http://waystep.site/588415344458d4sf.pdfIn PDF document text
    • http://easy-money-cash.space/starting_pay_for_starbucks_barista_floriday3g9j.pdfIn PDF document text
    • http://mofawab.66ghz.com/server_rack_layout_template_excel.pdfIn PDF document text
    • https://dasufurejer.weebly.com/uploads/1/3/0/9/130969026/f75ed.pdfIn PDF document text
    • https://wufovepujiz.weebly.com/uploads/1/3/0/7/130775368/313270.pdfIn PDF document text
    • https://pukadove.weebly.com/uploads/1/3/4/6/134694451/9798561.pdfIn PDF document text
    • https://fewabupa.weebly.com/uploads/1/3/4/5/134584226/6031198.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://woxutonugosafer.epizy.com/free_birthday_party_invitation_templates_photoshop.pdfIn PDF document text
    • http://komiguzuvare.rf.gd/60171581120.pdfIn PDF document text
    • http://fodabobaxuti.epizy.com/negeserulaw.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_off0000e234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE234 5244 bytes
SHA-256: 9c0caa9c75855d6f623a33be0d666ac8e50f061a2faf066897ecb5eec9164c1f
font_01_sfnt_off0000f407.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF407 10376 bytes
SHA-256: 17036d4088b473d0a40104dac9603cf8b2c136268bf4ad29b09d77973626725d