Malicious PDF — malware analysis report

Static analysis result for SHA-256 1baf7cac9c07415b…

MALICIOUS

PDF

72.3 KB Created: 2021-02-17 07:33:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ad49de706e00311ec69c3550942226de SHA-1: fdca1c27cb8c8d2cc9bc6eb1eb37e49cb8392879 SHA-256: 1baf7cac9c07415b84a95f38c693a79cbc05704dafc3a804cf7db5ecc318011c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wix?keyword=workshop+manual+online+free PDF link annotation
    • https://wejanorop.weebly.com/uploads/1/3/2/3/132303338/133735.pdfIn PDF document text
    • http://the-english-temple.com/sevitopox4grf.pdfIn PDF document text
    • http://yogist.fun/jesukiferuwizgyzr.pdfIn PDF document text
    • http://help-lnstagramcopyrights-verify.com/lowosizubosazenamarijo4t5cl.pdfIn PDF document text
    • http://1xbet-registr.site/luvamasa6qzv5.pdfIn PDF document text
    • https://terulupi.weebly.com/uploads/1/3/1/4/131406892/jenero.pdfIn PDF document text
    • http://mosdendy.store/entrepreneurship_and_small_business_management_study_guidev67ni.pdfIn PDF document text
    • http://lnstagram-copyright-confirms.com/39332615871alhuu.pdfIn PDF document text
    • http://usene.xyz/37739505037u79o8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421336/normal_5fe3912d2e337.pdfIn PDF document text
    • https://xadadoroz.weebly.com/uploads/1/3/6/0/136024884/41c9fcdbef.pdfIn PDF document text
    • https://cdn.sqhk.co/tuxonewebuke/KtmhGig/real_traffic_racer_hack_ios.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zojexajori.epizy.com/7080541740.pdfIn PDF document text
    • http://tutalogivenerok.epizy.com/aciduria_orotica_tipo_1.pdfIn PDF document text
    • http://wijinap.rf.gd/14351910356.pdfIn PDF document text
    • http://vekemifapujev.rf.gd/sagogakeginabik.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_off0000dba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA3 5216 bytes
SHA-256: 492f856660f5c2343ccf9999fe1a48865ff43761f7230cebb0b9b34fa2205474
font_01_sfnt_off0000ed43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED43 11656 bytes
SHA-256: 4f1bba20209d7e0910cbd233a08278552adf358ffe3f419b6b6c90b9214169f5