Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2fe4fb10fb71de0…

MALICIOUS

PDF

78.0 KB Created: 2021-02-03 01:43:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 34d43cd7cc2e4b22db308fabee9f594e SHA-1: ccf2bd7af0040c723aad1f7c94970f8086752e7a SHA-256: d2fe4fb10fb71de0d1b6e71644fee2844c0e165f0578d5157c45b2bffdb54ffe
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://leonvi.ru/aws?utm_term=ieee+reference+documentation+guidelines PDF link annotation
    • https://cdn.sqhk.co/zerurukoraju/ibjaClz/lokogebixepibu.pdfIn PDF document text
    • https://cdn.sqhk.co/kiraxozi/jijfygf/two_screen_desk_setup.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451352/normal_5fc8d9ddea9e5.pdfIn PDF document text
    • http://femovanisom.iblogger.org/nys_comptroller_reports.pdfIn PDF document text
    • http://xotesefaj.22web.org/bmo_harris_automatic_loan_payment_request_form.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367013/normal_6005ac4c70c05.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/jg8id95/vietnam_war_strategy_books.pdfIn PDF document text
    • http://tedusoxunola.22web.org/annamayya_cinema_patalu_ing.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fadowudi.rf.gd/fluke_115_multimeter_manual.pdfIn PDF document text
    • http://dipulitexaxuz.epizy.com/bow_wow_meow_cruciate_ligament_exam_form.pdfIn PDF document text
    • http://bumemelowogo.rf.gd/trig_identities_cheat_sheet_derivatives.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/avery_shipping_labels_8_per_sheet.pdfIn PDF document text
    • http://zusewijoje.epizy.com/13318597817.pdfIn PDF document text
    • http://xapimiwosusuv.epizy.com/pasekepel.pdfIn PDF document text
    • https://s3.amazonaws.com/topipovikapari/report_power_outage_coast_electric.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_off0000f251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF251 5276 bytes
SHA-256: 1317c4b529375d5c7e698eb1a62108d7c56fe7610fd164492cf00c746e6a59ac
font_01_sfnt_off00010428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10428 11508 bytes
SHA-256: baedda2a23176949b3f5a5ece374205d84e89bd93f28fc6ab9d8e67d5d7b2532