Malicious PDF — malware analysis report

Static analysis result for SHA-256 58e97590a884a672…

MALICIOUS

PDF

72.1 KB Created: 2021-02-27 09:47:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4fcaa34d96730687dd4157a2c41a4b88 SHA-1: ff81b2b5e4cd748e2d5519b9a83b87d45141ff2b SHA-256: 58e97590a884a6724b550a33f8a33689d177ca27a137bb89ef705026b6b17192
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://xezojetit.ru/wix?keyword=what+is+a+descriptive+phrase PDF link annotation
    • https://cdn.sqhk.co/geroterunetu/GLMZjfX/80024578179.pdfIn PDF document text
    • http://baxagaxisatipa.22web.org/how_do_i_reset_my_sony_smart_tv_to_factory_settings.pdfIn PDF document text
    • https://cdn.sqhk.co/jipodipotaj/aiYdjTO/2053494706.pdfIn PDF document text
    • https://dixaxotobaba.weebly.com/uploads/1/3/4/3/134377978/tinoleve-mibav.pdfIn PDF document text
    • https://sawuwirepugasup.weebly.com/uploads/1/3/0/9/130969548/31b4b536ea.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/xhelzzb/27864431717.pdfIn PDF document text
    • https://cdn.sqhk.co/tibatojo/ahdggjk/cara_update_software_iphone_6s.pdfIn PDF document text
    • http://govugododuwo.iblogger.org/how_to_heal_a_popped_pimple_scab_overnight.pdfIn PDF document text
    • https://mofafodoler.weebly.com/uploads/1/3/0/8/130874416/xorotesof.pdfIn PDF document text
    • http://rakajipof.22web.org/bypass_proxy_android_mobile.pdfIn PDF document text
    • https://cdn.sqhk.co/zirimikuj/Rhc3ZVh/26384054722.pdfIn PDF document text
    • https://domisupufiz.weebly.com/uploads/1/3/5/3/135316273/rizutuziko.pdfIn PDF document text
    • https://bovebonidufos.weebly.com/uploads/1/3/1/4/131483372/6b96412.pdfIn PDF document text
    • https://doleroxewaforud.weebly.com/uploads/1/3/4/3/134322791/499e4d15a46.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/kavalukato/6317750468.pdfIn PDF document text
    • http://merekum.rf.gd/newark_ohio_weather_report.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/ford_aftermarket_remote_start_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/xslt_template_name.pdfIn PDF document text
    • http://wepezip.epizy.com/android_10_galaxy_s10_verizon.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_off0000df19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF19 5204 bytes
SHA-256: f26d6cafad2c076a8eaa5fd6fbfe488d24996ae45f25563a63ef9a436269dc08
font_01_sfnt_off0000f0d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0D2 10132 bytes
SHA-256: 04e193793649f63a11a15d56a37cbf3cd482f0e97d6dda536310610de31fa67f

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