Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e4a2909d6b23c95…

MALICIOUS

PDF

64.4 KB Created: 2021-02-22 20:43:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e374e5be01f582a4190772dc5c7ea2c7 SHA-1: 7f7091e8f156009f29492b4604d19b1087f11daa SHA-256: 5e4a2909d6b23c952bf83b2aa3a3fd423347702adec4c9cf8938064ec45a289f
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/123?utm_term=line+6+spider+iv+30+w In PDF document text
    • http://surivapofoja.iblogger.org/descargar_always_on_display_plugin_apk.pdfIn PDF document text
    • http://zirirukefup.22web.org/bhojpuri_video_gana_mp4_2018.pdfIn PDF document text
    • http://radasekot.iblogger.org/9994527769.pdfIn PDF document text
    • http://remigajapalogu.22web.org/spotify_cracked_with_function.pdfIn PDF document text
    • http://bazegal.iblogger.org/linemajetelagumana.pdfIn PDF document text
    • http://vifuligotaki.iblogger.org/ruxuzakugujevuvefidoz.pdfIn PDF document text
    • https://tenosufude.weebly.com/uploads/1/3/1/4/131455069/2737450.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tuzekejaxegis.epizy.com/subazuwidikij.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/the_cartel_ashley_and_jaquavis_audiobook.pdfIn PDF document text
    • http://tukorokibenej.epizy.com/46974723253.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/chaalbaaz_bengali_movie_song.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/us_climate_change_report.pdfIn PDF document text
    • http://xonisuxumezitez.epizy.com/32420766773.pdfIn PDF document text
    • http://denaruzunus.epizy.com/goduvaweg.pdfIn PDF document text
    • http://rirazito.epizy.com/62463304448.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_off0000bcc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCC3 5264 bytes
SHA-256: 0517e66c258e0bf4f22c93f8aed747aa7f61c209ae6c41024a9ed2b5eaf745a3
font_01_sfnt_off0000ced4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCED4 10812 bytes
SHA-256: abe3032259edbbe52e25c94d957c8f67e3bf2b04beeca8fb90fc3decf7f68d80