Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d8ac36e5d87c1e5…

MALICIOUS

PDF

74.4 KB Created: 2021-03-03 19:46:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b1144649be3cc21fcac96fce3c7524e2 SHA-1: cfa387da6b5b5c484a6f6900934f45135f8af709 SHA-256: 3d8ac36e5d87c1e5fcd1cf3c8b3cc183d7c047036385f2e6156ca988aa16ef8b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://ponafet.ru/wb?keyword=mercury%20110%209.8%20hp%20outboard%20service%20manual PDF link annotation
    • http://fawetugamuxix.66ghz.com/bp_technology_outlook_2018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4504568/normal_5fea052361046.pdfIn PDF document text
    • http://zonerokemub.getenjoyment.net/jamixibululifav.pdfIn PDF document text
    • https://cdn.sqhk.co/gugirejol/iVhjbMU/nalawifajuwotepogowa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465564/normal_600df393e08f9.pdfIn PDF document text
    • https://togutugu.weebly.com/uploads/1/3/4/6/134617883/9afd5f84d378.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481847/normal_5fdd1b7e9fef5.pdfIn PDF document text
    • http://jefozogez.66ghz.com/xokerixerejusukig.pdfIn PDF document text
    • https://cdn.sqhk.co/mezutowede/fPx7S6U/denilutowezusudaxofur.pdfIn PDF document text
    • http://gejejasofubi.mywebcommunity.org/formal_and_informal_assessment_in_early_childhood_education.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446782/normal_5fe09b50cc9a7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lumosaneja.onlinewebshop.net/1969_ford_mustang_mach_1_price_in_india.pdfIn PDF document text
    • http://suvalon.rf.gd/transformers_bumblebee_movie_camaro.pdfIn PDF document text
    • http://suzefomon.rf.gd/dikemujaturuwesezuzuru.pdfIn PDF document text
    • http://povuputuk.epizy.com/10612295918.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_off0000e240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE240 6196 bytes
SHA-256: 31878378e44b45addd9886a5ff110761979f0dfc09979f372ce30f76a07c4b13
font_01_sfnt_off0000f743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF743 10892 bytes
SHA-256: 4bd04af2877ee2c6b9a51b2c6ff515a063e33391cebe8ae7085685bf6e9a5b9e