Malicious PDF — malware analysis report

Static analysis result for SHA-256 477cc426ff2424b9…

MALICIOUS

PDF

82.8 KB Created: 2021-02-22 18:47:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: d8613702dd05c68d666e4c0e71f52003 SHA-1: aedea4a3138564a25dea7edcecf2941940a5c136 SHA-256: 477cc426ff2424b9f57cf1ab90f0bfeae3a4dbcdf1161eb524b5464ef2153db7
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, disguised as a search result for a scientific topic. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to lead the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • 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://crophysi.ru/wb?keyword=how%20does%20plate%20tectonic%20move%20caused%20by%20thermal%20convection In PDF document text
    • http://reactivaperu-viabcpi.com/aviva_platform_login_adviserct76r.pdfIn PDF document text
    • http://montana-media.com/dibevedobevadefasew88xy4.pdfIn PDF document text
    • http://xeralebusizuno.iblogger.org/bewutinegigagodazu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bawilifugoxak.epizy.com/2081811706.pdfIn PDF document text
    • http://luselobek.epizy.com/khaki_shorts_uniform.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/ancova_example.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/assignment_essay_format_example.pdfIn PDF document text
    • http://jotunoxageleza.rf.gd/wusozegunuxoxagodupujoli.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/almohtarif_al_arabi.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/xojisufi.pdfIn PDF document text
    • https://s3.amazonaws.com/jaxesabi/adjustable_bed_base_for_platform_bed_frame.pdfIn PDF document text
    • http://wobuwikag.epizy.com/rosugew.pdfIn PDF document text
    • http://kitukogoxav.epizy.com/43480035711.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/frozen_let_it_go_piano_sheet_easy.pdfIn PDF document text
    • http://pejaxuvotovu.rf.gd/the_second_great_awakening_was_similar_to_jacksonian_democracy_in_that.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_off00010320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10320 5668 bytes
SHA-256: 95426e64281434564a48b5059fa3505e4e5ac511c4e7e836efec1446d8b56fc2
font_01_sfnt_off00011652.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11652 11704 bytes
SHA-256: d96e66ab4d2d4a13fa7a6d60001f68c52e4dbe1f42329400468f6611a462fce3

Open this report in the interactive analyzer, or submit your own file for analysis.