Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a6849a77b8e0811…

MALICIOUS

PDF

71.9 KB Created: 2021-02-11 14:40:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2b9458f5ae22f2a71599facea350d71e SHA-1: 6899ab15d3a88f37f284bc014b96cddf30fb86c8 SHA-256: 1a6849a77b8e081165515b4c9d5653ee0d6218377aec065f947a7bf4e8df65bf
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://jottigo.ru/wix?keyword=the+eukaryotic+cell+cycle+and+cancer+worksheet PDF link annotation
    • https://vaseviga.weebly.com/uploads/1/3/3/9/133986607/e30db5fd.pdfIn PDF document text
    • https://zulazuxalumino.weebly.com/uploads/1/3/1/6/131606396/finewase-fumisapobejuxuk-furexa.pdfIn PDF document text
    • http://wgathering.org/xogazugolinenanuvisinoweb1n4qp.pdfIn PDF document text
    • http://sendgrid-de.com/shiv_tandav_stotram_meaning_in_gujarati630qf.pdfIn PDF document text
    • http://kusulapezep.iblogger.org/23884344359.pdfIn PDF document text
    • http://blubadgehelp.net/cold_weather_running_gear_guidezo2z6.pdfIn PDF document text
    • http://akvatehnika74.ru/bosquejos_evangelisticos_para_predicargy0xz.pdfIn PDF document text
    • http://datab.vip/strikers_1945_ww_best_planetedpl.pdfIn PDF document text
    • http://vipadminler.org/driver_san_francisco_cars_listk9dqd.pdfIn PDF document text
    • http://therarbooks.com/fiviletokiwemufopoxis3ow30.pdfIn PDF document text
    • http://lg-copyrightforms.com/589937527777emai.pdfIn PDF document text
    • http://artdebug.site/85795208258ttnsr.pdfIn PDF document text
    • http://leqqurint.online/698766848831z0xn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xijilesuzuxo/6896167612.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/14809774749.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_off0000ddc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC2 5236 bytes
SHA-256: ada35b8e9fd418678e26089b9259e29a8c209b1a4a562838b4b9463efdee7a09
font_01_sfnt_off0000efa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA0 10232 bytes
SHA-256: ae0473cf02f5990373668adb478400cc2b1339e402e1e1f659d9e91ad79707c4