Malicious PDF — malware analysis report

Static analysis result for SHA-256 a31e5db5c76f84d3…

MALICIOUS

PDF

69.4 KB Created: 2021-02-17 22:27:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a53459c19306a1479ba9812efd420596 SHA-1: bfa238fe8e7597f6eb8a8cf924fba1f839031d6a SHA-256: a31e5db5c76f84d311119eb1e9853da0f1202077656545081e05ce7854ea4939
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://druttle.ru/wix?keyword=x+war+clash+of+zombies+mod+apk PDF link annotation
    • http://nuverlites.online/job_advert_poster_template0ztnc.pdfIn PDF document text
    • http://zomuregunaradu.iblogger.org/xanufirufirorosofale.pdfIn PDF document text
    • https://losiweso.weebly.com/uploads/1/3/1/3/131380476/ef9274b4.pdfIn PDF document text
    • http://kivanonox.iblogger.org/bangladeshi_baul_gaan.pdfIn PDF document text
    • http://xipevufizokev.iblogger.org/71194633082.pdfIn PDF document text
    • http://degitowexara.iblogger.org/53942799866.pdfIn PDF document text
    • https://bozaxadoduzake.weebly.com/uploads/1/3/4/3/134306622/karajexowejozo.pdfIn PDF document text
    • http://form-lnstagramcopyrightservices.com/advanced_java_programming_notespurkq.pdfIn PDF document text
    • https://mubuwevuli.weebly.com/uploads/1/3/4/5/134528176/47f0a4084ddb.pdfIn PDF document text
    • http://ingmijn.com/oxygen_xml_auto_formathvf7c.pdfIn PDF document text
    • http://organic100.fun/persona_5_negotiation_guide_gloomyfzy2g.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lavuradisaxel.epizy.com/vumanosudulafo.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/xebajub.pdfIn PDF document text
    • http://dagogedimin.rf.gd/29465932774.pdfIn PDF document text
    • http://timonuxe.rf.gd/62212393254.pdfIn PDF document text
    • http://zowujobosega.rf.gd/livre_albert_camus_l_etranger.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/fabola_andrade_reporter.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_off0000d1d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1D3 5720 bytes
SHA-256: af7438e742864a7ab425a6f046fd3ebd9f6091741a17b555cccc38d5263da668
font_01_sfnt_off0000e52c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE52C 10456 bytes
SHA-256: 88645870a599aafb900f858fa48e7a7432dec9408b2a43c860d447b53fe6ebe0