Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eca94ac82dd8a80…

MALICIOUS

PDF

72.3 KB Created: 2021-02-17 10:33:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b4bee1dc55bbed76e530c4b96b8de2cd SHA-1: 3d94b656d4d8be898c979c10386bf607d5acf338 SHA-256: 4eca94ac82dd8a8029924d48fe60c0e34d8bafefcf75b97cc94e442e515c57c6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=how+to+answer+a+source+question+a+level+history PDF link annotation
    • http://futegejetebe.22web.org/sujebubuledevosigajuv.pdfIn PDF document text
    • http://moneymaya.site/alcatel_go_flip_manual_virgin_mobiledugik.pdfIn PDF document text
    • http://topsale.pro/wizapebimupufonipitixej1yp9m.pdfIn PDF document text
    • https://somirurawepaf.weebly.com/uploads/1/3/1/3/131381963/e0c95eb78b0785.pdfIn PDF document text
    • http://levelupguild.com/mogumeld3td.pdfIn PDF document text
    • http://babubusawase.22web.org/nowelisano.pdfIn PDF document text
    • http://copyrightmediahelp.com/rs_agarwal_quantitative_aptitude_dowlr008.pdfIn PDF document text
    • https://cdn.sqhk.co/munenetifu/AjgjaA5/here_you_go_meaning_in_urdu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492900/normal_5fe868b7a6bf1.pdfIn PDF document text
    • https://cdn.sqhk.co/lojibuwe/ggjj8Ea/summoners_war_wiki_monsters.pdfIn PDF document text
    • https://cdn.sqhk.co/juxefirapuf/Ojhbgco/23488309528.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nepejalaziba.rf.gd/yaseen_sharif_in_english.pdfIn PDF document text
    • http://muvavobijipege.rf.gd/28281955358.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/how_to_read_a_stock_symbol.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/mitixomiwigejulux.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_off0000df22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF22 5228 bytes
SHA-256: 11d0c6170fea573a21ab5747c4f2006c22ab01396f28cfa22a05fca740c2ea57
font_01_sfnt_off0000f0fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0FD 10380 bytes
SHA-256: 12fd449db7bd3dd37fe73c0966b3bf414f9e4993025332444a58014eb6e6f82e