Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4bd844db9ad39fc…

MALICIOUS

PDF

73.5 KB Created: 2021-02-14 12:43:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fd1137bc6dc267c8eb7fa9244550829d SHA-1: 45e4ec5632cec061979590fad6432f8eb289e7b5 SHA-256: e4bd844db9ad39fc8c339337c08a244ebd23e008c1e33851222f4639564f6ea1
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://leonvi.ru/wb?keyword=evermore%20alyson%20noel PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380540/normal_601aa9e26aae6.pdfIn PDF document text
    • http://huseyincanx.com/cesur_ve_gzel_english_subtitles_epiy5rbf.pdfIn PDF document text
    • http://heliusdesign.ru/sunifavipadjopyl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494891/normal_5fee9fe709361.pdfIn PDF document text
    • http://free-at.pro/vupuzarofugilofetoji2vi70.pdfIn PDF document text
    • http://smallita.space/craftsman_truck_tool_box_accessoriestpqyq.pdfIn PDF document text
    • http://lifeshop.pro/bangalore_university_revaluation_formjq16y.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388041/normal_5fe19c5fd419d.pdfIn PDF document text
    • http://fapenas.22web.org/mandatory_reporting_cno.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447276/normal_5ff0699d5a2fc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tisiwiruligeg.epizy.com/floral_border_template_for_word.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/65057240043.pdfIn PDF document text
    • https://s3.amazonaws.com/waduzirader/captain_america_font_android.pdfIn PDF document text
    • http://vawunelevuwatex.epizy.com/65642818761.pdfIn PDF document text
    • https://s3.amazonaws.com/gapuruxumeg/tofovivoduza.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_off0000e2e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E3 4948 bytes
SHA-256: d21ef8e89e1bd115ed706d090b86c00f00ed414dfd5e141397bf4e4e138b3d33
font_01_sfnt_off0000f3ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3AC 11396 bytes
SHA-256: d48e813b639716c5874819f7825ea8bdd6cdb4a6f716619462ce2e5ac81483b1