Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c61ad1da9cf92ad…

MALICIOUS

PDF

68.9 KB Created: 2021-02-11 21:11:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6b710dfa3185b15a24b77dfefac94604 SHA-1: 2c3e2e7cd8d180cc0b347b6664ac34b9ef0764f9 SHA-256: 7c61ad1da9cf92ad0d25171eba8a42395780cf99256c5460b19c2242e9068af1
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/wix?keyword=guru+masterclass+review PDF link annotation
    • https://kurixaxewa.weebly.com/uploads/1/3/1/3/131383664/vozugulututixupet.pdfIn PDF document text
    • https://cdn.sqhk.co/kamufegoke/jeI8gha/makudage.pdfIn PDF document text
    • https://cdn.sqhk.co/lupobikud/j5iitus/4692804104.pdfIn PDF document text
    • https://xirovule.weebly.com/uploads/1/3/4/7/134749068/xisudi-bavudalunupot.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490141/normal_5fc8da6560ec3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418968/normal_60120a303d6cb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374853/normal_5fcbc0f6e9c24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444113/normal_601a10855a068.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vizumun.rf.gd/87717010389.pdfIn PDF document text
    • http://xifedesekelogu.epizy.com/greystones_guide_contact.pdfIn PDF document text
    • http://fikexole.rf.gd/after_effects_free_for_windows_10.pdfIn PDF document text
    • http://tirinito.epizy.com/instagram_community_guidelines_violence.pdfIn PDF document text
    • http://povemuxituziv.epizy.com/nakogokifexuvelemin.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_off0000d0f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0F1 5128 bytes
SHA-256: 00efbd6e1bfb99766fefd00fc7b38e9540f45d19cc0849c68af1db90d8564b05
font_01_sfnt_off0000e25d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE25D 10780 bytes
SHA-256: 5164cba780e969cf70f17f9545e264439ad50b20db352496efe8a134b5325c0e