Malicious PDF — malware analysis report

Static analysis result for SHA-256 4050aa157f211b64…

MALICIOUS

PDF

71.9 KB Created: 2021-03-01 13:47:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b023398c2b22c453af60757d9a202a29 SHA-1: c03560726093ba723719a3efcbb381f28c9f4151 SHA-256: 4050aa157f211b6472f90c933e160eb67378fcf3ec2940969cfb5fde946de683
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://gimoguvi.ru/wix?keyword=bolens+mower+parts+australia PDF link annotation
    • https://mufuwavujove.weebly.com/uploads/1/3/4/0/134042856/6534651.pdfIn PDF document text
    • http://golixudib.mypressonline.com/how_to_change_battery_in_honeywell_doorbell.pdfIn PDF document text
    • https://jabukilitidaz.weebly.com/uploads/1/3/2/7/132740438/f2090ea5806d22.pdfIn PDF document text
    • http://mazers.fun/screen_lock_time_password_free_download08x5w.pdfIn PDF document text
    • http://mujabelor.mywebcommunity.org/roxewisoxidoxuxirozilibo.pdfIn PDF document text
    • https://dojinutek.weebly.com/uploads/1/3/4/1/134108596/ee6d76.pdfIn PDF document text
    • http://clobuss.ru/31658387999jc08j.pdfIn PDF document text
    • http://kujamemapevubu.mypressonline.com/87716943527.pdfIn PDF document text
    • http://fajujefa.getenjoyment.net/98707170796.pdfIn PDF document text
    • http://xedeporib.medianewsonline.com/52970738857.pdfIn PDF document text
    • http://tezijexipilimo.getenjoyment.net/jodafe.pdfIn PDF document text
    • https://sefubokadizafa.weebly.com/uploads/1/3/4/8/134880044/2834752.pdfIn PDF document text
    • http://fafijitesulexiz.mygamesonline.org/tixodunusilakubezumamop.pdfIn PDF document text
    • http://erethiztzj.space/76434480040mhq1x.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/tugumeb/damodisumediw.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_off0000dc6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC6F 5104 bytes
SHA-256: d0ac5b217f5ae5a38f58c7dcb393505f948771f969bccfc14786f39c65c823bc
font_01_sfnt_off0000edc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC0 10884 bytes
SHA-256: 09bc2df277c0be14bfc38ef03108265e36d4200859c52791794b04ad2ec88a16