Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7e7d010abf2994a…

MALICIOUS

PDF

66.7 KB Created: 2021-02-17 14:41:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d744392f57735c7995299f060a4f3a4f SHA-1: 29ac1f48dc58caf674825494f34ec1aa9cf90c6c SHA-256: c7e7d010abf2994a68d00b6b02eb587270625f9bf90b6f91d883f47b66013b23
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://maypoin.ru/123?utm_term=the+highwayman+setting PDF link annotation
    • http://monoga.space/best_email_templates_for_marketingc7a20.pdfIn PDF document text
    • https://subilitukufune.weebly.com/uploads/1/3/4/6/134629352/2257913.pdfIn PDF document text
    • http://jibitivi.66ghz.com/bugulu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411694/normal_60170b36cd7a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469143/normal_601a4a79e157e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447271/normal_5ff772c76ada9.pdfIn PDF document text
    • https://dakewamegiru.weebly.com/uploads/1/3/5/3/135305658/digow.pdfIn PDF document text
    • https://wuluvaxezipow.weebly.com/uploads/1/3/5/3/135393263/3053994.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417141/normal_6011fb5227bb8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384480/normal_5fcf0506e0037.pdfIn PDF document text
    • https://xesuxikoju.weebly.com/uploads/1/3/4/0/134095833/2222636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489586/normal_6009cf9bb19d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425224/normal_601b9a8145362.pdfIn PDF document text
    • https://boxoxezerutevok.weebly.com/uploads/1/3/4/3/134317212/xamadojiw-nikixijifujo-nupodutoveb-fonusomo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491414/normal_5fc9485e51e25.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c9c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9C8 5112 bytes
SHA-256: 6bd9dc5bda437124b95b2632251ccb789d28bfac319b9fb3dd483108844af804
font_01_sfnt_off0000db2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB2B 10300 bytes
SHA-256: a3b5ca7410c5344489d295da3839d2a76052375899002ae8b455cc92c471e680