Malicious PDF — malware analysis report

Static analysis result for SHA-256 5aaefabecc85741e…

MALICIOUS

PDF

67.8 KB Created: 2021-01-27 17:28:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 76aad232252d05ed973454006fa8f6e7 SHA-1: 84ab8df892a98da626e8724b86353f1019d99ad8 SHA-256: 5aaefabecc85741e790fb3d41c3a6312e6f8ed318c2ab1d2b93472b08b9727a4
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://jottigo.ru/wb?keyword=vtech%20kid%20connect%20apk PDF link annotation
    • https://nizuwutino.weebly.com/uploads/1/3/1/4/131482859/c96144347.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481155/normal_5fc99f52ab4af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461216/normal_5fd234a8b77c2.pdfIn PDF document text
    • https://kutawujotin.weebly.com/uploads/1/3/4/0/134016956/4580806.pdfIn PDF document text
    • https://gekafokolasiga.weebly.com/uploads/1/3/1/3/131384301/gabora.pdfIn PDF document text
    • https://cdn.sqhk.co/videgogaf/Dshctgg/68897934901.pdfIn PDF document text
    • http://dinodosum.iblogger.org/5987977843.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443325/normal_600915efd7ea1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447669/normal_6003d26b5f321.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jipudovisubu.rf.gd/nozelanapav.pdfIn PDF document text
    • http://dukiduzafenej.epizy.com/ccleaner_pc_app.pdfIn PDF document text
    • http://ludujefu.epizy.com/blitzcrank_adc_guide.pdfIn PDF document text
    • http://towirasoruxapob.rf.gd/filmywap_2009_bollywood_movies_3_idiots.pdfIn PDF document text
    • http://rigamijuzekup.rf.gd/66570146684.pdfIn PDF document text
    • http://gugamofizuxeg.epizy.com/goodnotes_calendar_template_2019_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_off0000cbed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBED 4884 bytes
SHA-256: 5785bda7a08be1eae7380721eabc8e6989eb7fecfc561f40397ff1977d55f1ef
font_01_sfnt_off0000dc8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC8F 11148 bytes
SHA-256: 2e22776ae79afda7e10d68ce37ab941cc42068382891b7e24eb08f20ec4687b4