Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5dd736f2fb6abfb…

MALICIOUS

PDF

74.4 KB Created: 2021-02-11 15:38:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: dfdf3e2164d9068aebf57f56c3704271 SHA-1: facf950361f13ce2b38f38182f4d2f8b9f1149f5 SHA-256: c5dd736f2fb6abfbbfb3370d4eb422096eb1a42b0947511cc8061f54c014b068
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://bologen.ru/wix?keyword=fairy+tale+part+1+quick+guide PDF link annotation
    • https://cdn.sqhk.co/pifitudebuxo/zXfihT2/big_bang_theory_cast_members_salary.pdfIn PDF document text
    • https://cdn.sqhk.co/gibuzini/gfG6ge6/kodiak_cakes_shark_tank_investor.pdfIn PDF document text
    • http://sibixujuw.22web.org/noroot_firewall_apk_2018.pdfIn PDF document text
    • https://gupufema.weebly.com/uploads/1/3/4/4/134456882/gugabe.pdfIn PDF document text
    • http://vawuzusodiguse.iblogger.org/favusotogekulejimesikotad.pdfIn PDF document text
    • https://xomiwisaxi.weebly.com/uploads/1/3/3/9/133999446/0d154f27d1.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugavu/Liejb9j/blockchain_technology_applications_upsc.pdfIn PDF document text
    • https://dezirivudamowi.weebly.com/uploads/1/3/1/8/131856369/sulizuxonimenoxow.pdfIn PDF document text
    • https://vawevoza.weebly.com/uploads/1/3/1/4/131482963/ragumozopifijoz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://larazegabolulaf.epizy.com/butterball_electric_fryer_by_masterbuilt_manual.pdfIn PDF document text
    • http://tuduresoxafu.epizy.com/basic_financial_accounting_questions_and_answers.pdfIn PDF document text
    • http://tinejamuwaki.epizy.com/ccna_3_chapter_6_exam_answers_v6.pdfIn PDF document text
    • http://numakuzugurewi.rf.gd/garden_tool_shed_plans.pdfIn PDF document text
    • http://voduvurikijo.rf.gd/padupi.pdfIn PDF document text
    • http://xamunenefo.rf.gd/renaissance_periodization_powerlifting_strength_template.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_off0000e730.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE730 5360 bytes
SHA-256: 5b351ca1ca420654903402aa3296bb58e73154970bff8d9b9f7f978a91f440d0
font_01_sfnt_off0000f986.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF986 10364 bytes
SHA-256: 5ef9e72dd93b8d8d06b288c81a23f166ef741f92b939fd98813ca9ef0297acb4