Malicious PDF — malware analysis report

Static analysis result for SHA-256 58c11679fb1f71dd…

MALICIOUS

PDF

71.2 KB Created: 2021-03-04 00:10:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 620e2cbe5ec7531cd937e705726aad45 SHA-1: 51e5b9baf5858eb77ddfbf40b90a3b98d9541ebb SHA-256: 58c11679fb1f71dd21e8abd442ef6d3a7190933305d142f25635efc2961f1452
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://golowaki.ru/wix?keyword=solving+system+of+equations+by+graphing+worksheet PDF link annotation
    • http://lezebapobal.22web.org/chadbourn_nc_police_reports.pdfIn PDF document text
    • http://konalofasu.mywebcommunity.org/planting_and_harvesting.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422392/normal_5fe075fe89062.pdfIn PDF document text
    • http://sibatike.getenjoyment.net/nopiziniteredavovipipobu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379626/normal_5fd2dfbbb4b39.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vigavanoxe.onlinewebshop.net/what_does_the_word_guarantee_mean_in_spanish.pdfIn PDF document text
    • http://pabadebaluke.rf.gd/20374517013.pdfIn PDF document text
    • http://zeverevapaxili.epizy.com/48525906816.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/fapuxonabomiruv.pdfIn PDF document text
    • http://posijibanif.epizy.com/geico_insurance_reviews_consumer_reports.pdfIn PDF document text
    • http://buzezasafez.epizy.com/55767950943.pdfIn PDF document text
    • http://xefujifivifizu.epizy.com/cuisinart_coffee_maker_chw-12p1.pdfIn PDF document text
    • https://s3.amazonaws.com/megelugik/27024020678.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_off0000da44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA44 6000 bytes
SHA-256: 7464fa43f370d6f89d0caf8effc02acb0b0cbba1534a95c511864f7985a53981
font_01_sfnt_off0000ee9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE9B 9684 bytes
SHA-256: 9e5ccb48695a40c4d784c2f71d1f34b03ba75bf82491a56f32b4d2a597a49635