Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf3bc0c6b0648aa4…

MALICIOUS

PDF

69.3 KB Created: 2021-02-20 21:23:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 879843a86ec560efbe802d7705e31f8b SHA-1: 0dd600078fe347237b2ca89a57fb8d2a94c34ab6 SHA-256: cf3bc0c6b0648aa4bb17b795c8c9c80cc457e8c6381f6cc902a9cda4e51faee0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=google+mario+bros+2012 PDF link annotation
    • https://saredikov.weebly.com/uploads/1/3/0/8/130874194/gigipugomij_gowilagemun_juvizepeze_kituf.pdfIn PDF document text
    • https://kobivepetere.weebly.com/uploads/1/3/1/8/131871499/xesenipugenaxeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368735/normal_5fd3775b0eb33.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390056/normal_6002fbe03df68.pdfIn PDF document text
    • https://jexafowasefuxuv.weebly.com/uploads/1/3/4/5/134588667/3743840.pdfIn PDF document text
    • https://kasasifu.weebly.com/uploads/1/3/4/6/134697732/feperufujalenaxegobe.pdfIn PDF document text
    • https://serewutedirafam.weebly.com/uploads/1/3/5/3/135339767/dugovirakiki-dunoz-ruxarikux.pdfIn PDF document text
    • https://saletenabij.weebly.com/uploads/1/3/4/3/134339554/pagumiruju-mililox-lidobiredumoj.pdfIn PDF document text
    • https://wopokajam.weebly.com/uploads/1/3/0/8/130874492/49f10f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411922/normal_6021cd2bd416a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lodusebivepakef.epizy.com/vaparulagewi.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/odia_new_bhajan_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/best_free_admin_template_bootstrap_4.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_off0000d325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD325 5504 bytes
SHA-256: 0a12e072f4a41897fe4433ca2050f1ec22a34df21df4924e81854c92c8fffb46
font_01_sfnt_off0000e5ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5CA 10216 bytes
SHA-256: 0c68842e81f3b0627822487123626e51012fd34408e14f3b966b2b04bf7caad1