Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2b8784b8dfb68ca…

MALICIOUS

PDF

68.2 KB Created: 2021-02-16 17:40:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 2f0d7c1af52f7e024e1518957ce7e94c SHA-1: 7a3bf4c315d79eea98db0125ef3e1f07d65bf3ea SHA-256: b2b8784b8dfb68ca283eb99a69ed9088c4cc46107df27a7dfd53b32576d5b7c0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/123?utm_term=britax+marathon+70+car+seat+installation PDF link annotation
    • http://matrixbicycles.com/gosorixuxefegroaaj.pdfIn PDF document text
    • http://varuzajuv.22web.org/boilermaking_books.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421360/normal_600bb0d6d269b.pdfIn PDF document text
    • https://cdn.sqhk.co/mowanideju/Jhjgegi/pejosezudoxadid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409243/normal_600cd060185ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502336/normal_5fd987d1796c3.pdfIn PDF document text
    • http://totalcreditcheck.info/32571432859p7ro0.pdfIn PDF document text
    • http://podarokinsta.site/babivupizitivupulx6o92.pdfIn PDF document text
    • http://armada.technology/challenge_bengali_movie7e04b.pdfIn PDF document text
    • http://instacopyrightcenter.com/mp3_iwan_fals_kotav1n9q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453563/normal_601f9db1615b6.pdfIn PDF document text
    • http://tb-films.ru/cake_maker_cooking_games_downloadv3v1q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://beninoduvewer.epizy.com/ryt_etf_fact_sheet.pdfIn PDF document text
    • http://netixoxolasabo.rf.gd/rafuzeja.pdfIn PDF document text
    • http://kikexufan.epizy.com/74077409063.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_off0000cd88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD88 5380 bytes
SHA-256: f68aa046ae8b1eff817067731d978164c979d042e5d6b597e17a9a233f92e54f
font_01_sfnt_off0000dfaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFAF 10700 bytes
SHA-256: 2b0394656a9379e54329dbf0994ece6ad13dc25812daeae04228103c54046439