Malicious PDF — malware analysis report

Static analysis result for SHA-256 a500b1d1fd07d974…

MALICIOUS

PDF

71.6 KB Created: 2021-03-01 05:45:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 4373c4571991c9917ffd2c8ee93e009e SHA-1: 58f0783c22aaeaae694cc3d179f84db73d574d1b SHA-256: a500b1d1fd07d974476b507a80987be847fedbe86c78d14ddbd7f8ef60e9f5a7
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://zajinet.ru/wix?keyword=huragok+name+generator PDF link annotation
    • http://goxezidoge.22web.org/life_without_principle_henry_david_thoreau.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464067/normal_5fee4dc20bdff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417536/normal_5fc578a87e21e.pdfIn PDF document text
    • http://zoluwofemofuper.sportsontheweb.net/the_killing_joke_netflix_cast.pdfIn PDF document text
    • http://patajafurep.mywebcommunity.org/xezedezoxokezur.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376612/normal_6003f7e4a03e5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jiporiri.rf.gd/98307594610.pdfIn PDF document text
    • http://finabupotokuko.epizy.com/30307004385.pdfIn PDF document text
    • http://ligoroxenafof.atwebpages.com/how_long_do_viking_ovens_last.pdfIn PDF document text
    • http://kixavukuwowaz.rf.gd/the_best_whatsapp_status_video.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/maduxo.pdfIn PDF document text
    • http://vebowowibo.rf.gd/riwobusezudupizubebuvarog.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_off0000de70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE70 4820 bytes
SHA-256: 4c280f68cb0c48c30cb1bda739aceaba33c32d1a09bb07fdaa36d840b1dea7a0
font_01_sfnt_off0000eebf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEBF 10300 bytes
SHA-256: 328bf08c54bbfd46f09c139a428b5406a356085587e7f44b257ddb62a559266b