Malicious PDF — malware analysis report

Static analysis result for SHA-256 43e602ea3d7179f1…

MALICIOUS

PDF

67.0 KB Created: 2021-02-26 08:34:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 470bcd6ae611e8a31d38fecc141cebef SHA-1: a65f48083b78d0875269df5e2e56a0c667b69f62 SHA-256: 43e602ea3d7179f1df09c1610735dab72420f43a107d10eee99d30fd27d1ffc9
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://bologen.ru/award?keyword=troy+bilt+5550+generator+oil PDF link annotation
    • https://zuvubexusemeto.weebly.com/uploads/1/3/4/3/134373725/5583216.pdfIn PDF document text
    • https://fuvekusegubo.weebly.com/uploads/1/3/4/7/134736786/pufali.pdfIn PDF document text
    • https://luzenesezenobo.weebly.com/uploads/1/3/5/3/135307250/2646826.pdfIn PDF document text
    • http://resimpub.com/xunelipogoresemelufarer7wdt5.pdfIn PDF document text
    • http://vopugixeroramox.medianewsonline.com/popomisoradaxeku.pdfIn PDF document text
    • http://mbfsopg.com/dedofagetizikuguc9z.pdfIn PDF document text
    • http://gatorama.fun/rilafox9ne6i.pdfIn PDF document text
    • http://muzibatixabu.mypressonline.com/felidavenirokafulenipizo.pdfIn PDF document text
    • http://safetymirrors.xyz/lukenowupopavevawukekit6bm16.pdfIn PDF document text
    • http://wildboost.club/asla_pes_etme_1_turkce_dublaj_indir6cd4w.pdfIn PDF document text
    • http://xufelaketodo.getenjoyment.net/35673407126.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mimapabu.epizy.com/delta_22-560_dust_hood.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_off0000cb27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB27 5132 bytes
SHA-256: 90549c8f06436e60410babaad12a8bdc7dbbdac4c33d4b14815f43f04aab65f4
font_01_sfnt_off0000dcbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCBD 10144 bytes
SHA-256: 0c2d441600fbc96504c63dab3d5df83cc508d02e722160692dbe2d9e9cedfad0