Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dc956a470e98980…

MALICIOUS

PDF

66.5 KB Created: 2021-02-24 17:52:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6b00a65da71549b4d24f8b13348d8a2d SHA-1: 124bb7f522bf7ae4d92440a1081cd3060f13b0fa SHA-256: 9dc956a470e98980a92582d20e8aa6820c7c8cae46acb82cf75db8069a24e8ff
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wb?keyword=samsung%20rf263beaesr%20ice%20maker%20removal PDF link annotation
    • http://wedipum.mygamesonline.org/how_long_does_navy_training_last_in_nigeria.pdfIn PDF document text
    • http://svoylend.xyz/46697220519n2otz.pdfIn PDF document text
    • http://newipufisatag.scienceontheweb.net/how_to_charge_your_jlab_wireless_earbuds.pdfIn PDF document text
    • https://cdn.sqhk.co/daxerarugak/Dicugh2/buriwise.pdfIn PDF document text
    • http://gosoxegekiri.mywebcommunity.org/2nd_grade_math_assessment.pdfIn PDF document text
    • http://vkrowl.com/tebirokitofemojapavodix7c3yb.pdfIn PDF document text
    • https://cdn.sqhk.co/limiwebu/ehACgi9/miriviludomufemumabiz.pdfIn PDF document text
    • http://pofaduxiruk.getenjoyment.net/lapesebuzilalem.pdfIn PDF document text
    • http://monoga.space/why_my_acer_tablet_wont_turn_onpr8d8.pdfIn PDF document text
    • http://relax35.ru/22157386268iyzg3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468551/normal_6000f2a150fca.pdfIn PDF document text
    • http://shop-profildoors.ru/jedofebelitomowavanamg1h5l.pdfIn PDF document text
    • http://info-pages.ru/makunamudapasiahu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/25508891909.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/bruxelles_formation_rue_royale.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_off0000c9ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9AC 6020 bytes
SHA-256: 830da4b17dc018236cb22b67b9444e30d0035d79b5ade1b5e9cd58067b21324f
font_01_sfnt_off0000de1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE1D 9036 bytes
SHA-256: 669c8a5d67d45e4face01e3af40555a027587f5b5a902a866692f9e2f53fcf54