Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cad022ec42c1a9f…

MALICIOUS

PDF

85.7 KB Created: 2021-02-04 15:00:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: fae1bef996d44113650597e6bcbb14c1 SHA-1: efd0776bd5943e316b4d5fc0e043c8739667bd7f SHA-256: 9cad022ec42c1a9fa4c07d92191109f4537ef98c32a458822dc424fdd9e24d21
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://druttle.ru/wb?keyword=baby%20bjorn%20carrier%20one%20instruction%20manual PDF link annotation
    • https://nurosamemozixa.weebly.com/uploads/1/3/4/3/134375837/rovate_zoboresanepono.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384628/normal_600f56d455ab3.pdfIn PDF document text
    • http://subbellassecret.com/10417734288rhbhi.pdfIn PDF document text
    • http://vbruti.site/2346823748nk2br.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454430/normal_5fefd961c405f.pdfIn PDF document text
    • http://fringigejy.site/rifisepufesavea6xbc.pdfIn PDF document text
    • https://cdn.sqhk.co/nejajevafode/bhdjfe5/24951111744.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379220/normal_5ff7198c36e6c.pdfIn PDF document text
    • https://resezavurafufok.weebly.com/uploads/1/3/1/4/131407395/ninorerolileroz-toguvenulakux-wolavakijiwug-xefogito.pdfIn PDF document text
    • https://zakupiza.weebly.com/uploads/1/3/5/9/135960967/734405.pdfIn PDF document text
    • http://buytoday.cc/niburikobetubafijofeanhhb.pdfIn PDF document text
    • http://idealicaufficiale.website/455876729455zhta.pdfIn PDF document text
    • https://cdn.sqhk.co/nixafusoda/C4dicP7/tai_chi_bubble_tea_menu_buffalo.pdfIn PDF document text
    • https://ludilejufa.weebly.com/uploads/1/3/5/3/135347725/e520a0.pdfIn PDF document text
    • https://cdn.sqhk.co/xemugugafot/zbGXgcI/vabunopet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/liwafo/colorectal_cancer_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/8342908127.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/1_inch_thick_plywood_sheets.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_off00011273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11273 5312 bytes
SHA-256: eb10b8c2b06b13df13a662a98040d599c214a530836ca7b39bd9151c116e26f9
font_01_sfnt_off00012473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12473 10904 bytes
SHA-256: 268eb4f015234dc5ea3f9702ed73908ab27f0c58a60c1706ee4990a31aafebf9