Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5b9a19a1836d7c3…

MALICIOUS

PDF

71.8 KB Created: 2021-02-16 04:18:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a61e827062781dbb6f2f79031b11fc70 SHA-1: c38fe920de4d91bc37a7a6e9c4be5016bdfcc861 SHA-256: e5b9a19a1836d7c30575c132baee0f74cf53a6bcd569929a0358b9cd23168a5a
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://leonvi.ru/wix?keyword=nucleic+acids+and+protein+synthesis+crossword+answers PDF link annotation
    • https://gudeworidive.weebly.com/uploads/1/3/4/7/134767917/xuworixe_rebugab_lukiwe_povilafonoxod.pdfIn PDF document text
    • http://juilopkiretlo.ru/financial_reporting_process_of_an_organizationxz7lh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459469/normal_602b0c1152421.pdfIn PDF document text
    • http://nevodoma.iblogger.org/mandrill_template_api.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426814/normal_600a4d7948d18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489969/normal_5fe8045c6129c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386606/normal_5fcc285b2352e.pdfIn PDF document text
    • https://xexidizufom.weebly.com/uploads/1/3/4/5/134508107/rubugamex_vapeta_xatusok.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408340/normal_5fcbf5231a761.pdfIn PDF document text
    • http://fowagovujag.22web.org/long_hair_formal_hairstyles_half_up.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426687/normal_5ff96c7a58016.pdfIn PDF document text
    • http://jadebey-x.com/savita_bhabhi_movie_kickassybdo2.pdfIn PDF document text
    • https://befomunuduti.weebly.com/uploads/1/3/1/1/131164266/3824805.pdfIn PDF document text
    • http://lemugedapa.iblogger.org/46657833145.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pagujuropiwadiv.rf.gd/linnworks_free_ebay_template.pdfIn PDF document text
    • http://poresiz.epizy.com/osha_avoiding_electrocution_hazards_assessment_answers.pdfIn PDF document text
    • http://xegubidutanaza.epizy.com/bolezofajogefejereb.pdfIn PDF document text
    • http://putesedesupelo.epizy.com/xutexoze.pdfIn PDF document text
    • http://nekofixas.rf.gd/la_bambola_assassina_2019.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_off0000db33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB33 5324 bytes
SHA-256: 327910da650a09d76619383b8e764a6ba0dde5ee5aa96c254729fdc5ea2fad22
font_01_sfnt_off0000ed65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED65 10672 bytes
SHA-256: ec0dc507ca79462910df0f3dcfd176bb15e85d5b2f719919ffcb793f40dfadb7