Malicious PDF — malware analysis report

Static analysis result for SHA-256 001d9b9cff14cb21…

MALICIOUS

PDF

70.0 KB Created: 2021-02-17 00:48:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b125b4f29edcee02af4145c09886bf3e SHA-1: 1da6bef6fb8956ff55899449564e554a8c08e7cf SHA-256: 001d9b9cff14cb21f862f4416c79de503ca3fcb6c37683d643b23ad5aeed528a
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=epg+android+electronic+program+guide In PDF document text
    • http://pimazisiperej.iblogger.org/wemoxezudusegokotabaj.pdfIn PDF document text
    • http://pujuburebofig.iblogger.org/yahoo_mail_notification_app_for_android.pdfIn PDF document text
    • http://miiliioner.xyz/abuela_invents_the_zero_summaryxmlrv.pdfIn PDF document text
    • http://edayafar.xyz/nurufawisopnujw.pdfIn PDF document text
    • https://fekanarikivokil.weebly.com/uploads/1/3/4/8/134884633/4204465.pdfIn PDF document text
    • http://taxavifosobedul.iblogger.org/71061044179.pdfIn PDF document text
    • https://jewefero.weebly.com/uploads/1/3/1/3/131383264/a8fcd05ff4d3ef5.pdfIn PDF document text
    • https://talunijepi.weebly.com/uploads/1/3/4/5/134599753/8227268.pdfIn PDF document text
    • https://lijogidatu.weebly.com/uploads/1/3/2/3/132303170/7535841.pdfIn PDF document text
    • https://nupezodebugu.weebly.com/uploads/1/3/2/3/132302780/xudazutor.pdfIn PDF document text
    • http://gratoram.site/mamitizutofultjqck.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/falevi/affordable_housing_application.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/putekugeso.pdfIn PDF document text
    • https://s3.amazonaws.com/tosego/fosipudorakodadavamu.pdfIn PDF document text
    • http://fofuxolisemaxim.epizy.com/29165066476.pdfIn PDF document text
    • http://wagenugeti.epizy.com/best_telescope_app_for_android.pdfIn PDF document text
    • http://pabovabavuwemet.rf.gd/the_everything_guide_to_anger_management.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_off0000d404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD404 5172 bytes
SHA-256: f755d4b8ede59cd8ba7707cdee209a100b7bfd0bec1f6ff5e6a14a7411166571
font_01_sfnt_off0000e590.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE590 10916 bytes
SHA-256: 98a96d4122b86dfafe1a5eb4abcf4f75b7089feea1327aa89d11622951310382