Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aafcb7daf6a3b34…

MALICIOUS

PDF

72.3 KB Created: 2021-02-13 05:01:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d53016c8f29e4a16c30e7ed7bd5c84c4 SHA-1: f82d65ceb40f37dcc9ebee07ef25707b8eb716d2 SHA-256: 8aafcb7daf6a3b342a9c37d9dfa72b0ef098ed78953b8669bedddc906fd87f86
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/123?utm_term=paletas+de+colores+para+interior PDF link annotation
    • https://vilofezilo.weebly.com/uploads/1/3/0/7/130740065/dojafuzit_naxematuna.pdfIn PDF document text
    • http://rukilalo.iblogger.org/6686243020.pdfIn PDF document text
    • http://nujuxogo.iblogger.org/20102533237.pdfIn PDF document text
    • http://zubosoxi.22web.org/xikurumefodumelut.pdfIn PDF document text
    • https://lofusomibebez.weebly.com/uploads/1/3/2/7/132740423/eb4f987af3.pdfIn PDF document text
    • https://zukikopan.weebly.com/uploads/1/3/0/7/130775822/395ff4f23651.pdfIn PDF document text
    • http://vasamekekegu.iblogger.org/basketball_games_offline_free.pdfIn PDF document text
    • https://metatigizedi.weebly.com/uploads/1/3/1/3/131398099/tajubazut.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ligifufeg.rf.gd/machine_learning_algorithms_free.pdfIn PDF document text
    • http://tivekanudoz.rf.gd/traditional_bo_staff_forms.pdfIn PDF document text
    • http://babazemo.epizy.com/83882558117.pdfIn PDF document text
    • http://mugevewobota.rf.gd/xabaxobukibefebavet.pdfIn PDF document text
    • http://vebodowumiba.epizy.com/ionic_4_angular_7_template.pdfIn PDF document text
    • http://zusewijoje.epizy.com/blue_parrott_450_manual.pdfIn PDF document text
    • http://gixogofano.rf.gd/veduxogokepodo.pdfIn PDF document text
    • http://pusevim.epizy.com/turkish_phonology_morphology_and_syntax.pdfIn PDF document text
    • http://bopebewi.epizy.com/myer_super_king_flannelette_sheets.pdfIn PDF document text
    • http://gesesasogibigaw.rf.gd/22850379853.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_off0000df24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF24 5068 bytes
SHA-256: a6200d2143033780071849432fd065806327e9b17cf53afd915384260cfb17a5
font_01_sfnt_off0000f06e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF06E 10504 bytes
SHA-256: d9430c984498e073917f8186138197dd27748dfc1d1202dbbeb8c1c7e56559ee