Malicious PDF — malware analysis report

Static analysis result for SHA-256 df488f76428f5ef3…

MALICIOUS

PDF

70.3 KB Created: 2021-02-19 00:50:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f1ffc026872b760784b85d0773932ae1 SHA-1: a7c29e6fb3303a6c6ed3997131d700a987982de5 SHA-256: df488f76428f5ef318d5600695dc7e2383a8258d28f243d31c0ccb17129fd1ad
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://baarspo.ru/wb?keyword=how%20is%20a%20bond%20polar%20or%20nonpolar PDF link annotation
    • http://doctora.club/triple_bottom_line_adalah3gvd3.pdfIn PDF document text
    • http://detonic-hypertonie.website/pages_to_use_for_blackout_poetry1fqk6.pdfIn PDF document text
    • http://pedufan.iblogger.org/regosem.pdfIn PDF document text
    • http://hr-insider.com/33431436267z3c1c.pdfIn PDF document text
    • http://boviriso.22web.org/44296859269.pdfIn PDF document text
    • http://detonic-romania.website/mukelojidu12l70.pdfIn PDF document text
    • https://bojibelatos.weebly.com/uploads/1/3/4/0/134040608/1757587.pdfIn PDF document text
    • http://fresh-ita.space/cummins_m11_service_manual4tuvc.pdfIn PDF document text
    • http://icub.tech/zawgyi_font_for_windows_75864g.pdfIn PDF document text
    • http://leree6.club/c_v_format_for_job_applicationkzdro.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pazipinabobon.epizy.com/html5_announcement_template.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/womegigazufiferi.pdfIn PDF document text
    • http://zevizajezu.epizy.com/bollywood_movies_1080p_sites.pdfIn PDF document text
    • http://berodibanubaj.rf.gd/45332196593.pdfIn PDF document text
    • http://gizexagivet.rf.gd/standard__poors_industry_surveys_file_for_the_beverage_industry.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_off0000d6a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6A7 5148 bytes
SHA-256: 8f971acd01273600d9290ce0808b74c01d4f58e7b1567d2d06192ecac257998f
font_01_sfnt_off0000e83b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE83B 10576 bytes
SHA-256: db722d75822c092da2b3f37aa1fe73099ca8a8144ead43878b9bce272ff6eb76