Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fe46cf68b2cec8d…

MALICIOUS

PDF

68.3 KB Created: 2021-02-27 19:10:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d1ef14916be76989166154a2a29f594c SHA-1: 70cb6ae6fc4dd147664be082f6e951aa86a4a626 SHA-256: 6fe46cf68b2cec8d3dc1fc67c442fbc6ea258233dcfea8b156046fea67bf4c02
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://xezojetit.ru/wb?keyword=possessive%20pronouns%20worksheet%20grade%206%20pdf PDF link annotation
    • http://bixaxivajujojar.mypressonline.com/29159838237.pdfIn PDF document text
    • http://gopadaxin.mywebcommunity.org/computer_spare_parts_name_list.pdfIn PDF document text
    • https://cdn.sqhk.co/wapevenupu/ggLliiC/64189476389.pdfIn PDF document text
    • https://cdn.sqhk.co/libibajuzumu/fhdjeij/83091525808.pdfIn PDF document text
    • https://newosupileseru.weebly.com/uploads/1/3/2/3/132303396/xawuner-fikelete.pdfIn PDF document text
    • http://sunufosabupes.scienceontheweb.net/average_salary_for_technical_writer_editor.pdfIn PDF document text
    • https://cdn.sqhk.co/xebibugekux/feidtig/junovigivorimiw.pdfIn PDF document text
    • https://cdn.sqhk.co/sikibeve/YglIDRs/home_tabletop_arcade_cabinet.pdfIn PDF document text
    • https://vunakeba.weebly.com/uploads/1/3/4/6/134623580/gutovavifa.pdfIn PDF document text
    • https://cdn.sqhk.co/rabataxuvax/ijgejd4/cloudy_in_spanish_language.pdfIn PDF document text
    • http://nesorus.mywebcommunity.org/533861852.pdfIn PDF document text
    • https://cdn.sqhk.co/nedabuke/gdhbGgp/38641501920.pdfIn PDF document text
    • https://cdn.sqhk.co/jimavidozeze/bkEpHSl/moviestarplanet_game_online.pdfIn PDF document text
    • http://bumumapa.mypressonline.com/41075481683.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xinifaduzinuvu.onlinewebshop.net/peg_tube_medication_administration_steps.pdfIn PDF document text
    • https://s3.amazonaws.com/juvosi/bolton_council_tax_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/wavanesedevevuzosizedek.pdfIn PDF document text
    • http://dokudaruriwiv.atwebpages.com/inteligencias_mltiples_de_howard_gardner_ejemplos.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_off0000cd51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD51 5644 bytes
SHA-256: a4403ff20fd0e9c74ea7dc3eeb328912c40a45b9a4e67ac2921d3b17495d931a
font_01_sfnt_off0000e0a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A0 10372 bytes
SHA-256: 7f51679e7e8c950484db53a4f78df00ad068d656b4931785917033755a0e25a8

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