Malicious PDF — malware analysis report

Static analysis result for SHA-256 94e7e5cad2f709b3…

MALICIOUS

PDF

67.1 KB Created: 2020-11-24 16:58:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 3086514877c49cf044cf45e48641c508 SHA-1: 93dac7db9f190c1850e6a01b97e9a226c5ebccdb SHA-256: 94e7e5cad2f709b3ee3b7aedaabece6e819a8d73522976776e81ce037ea9bdc2
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, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content, likely exploiting the 'six sigma green belt study guide pdf' lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://cctraff.ru/strik?utm_term=six+sigma+green+belt+study+guide+pdf In PDF document text
    • https://panebafizi.weebly.com/uploads/1/3/4/3/134365464/likifekidip.pdfIn PDF document text
    • https://rabifupokuwu.weebly.com/uploads/1/3/1/1/131164250/vebokupameseroru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476123/normal_5fb91c71ba692.pdfIn PDF document text
    • https://mabelobixos.weebly.com/uploads/1/3/4/6/134621829/1747123.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/8c89fb0289.pdfIn PDF document text
    • https://bogatogofaz.weebly.com/uploads/1/3/4/7/134705351/3151265.pdfIn PDF document text
    • https://worozimovazez.weebly.com/uploads/1/3/1/4/131406108/guxofenebi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/79685b0e-75c9-429a-9e8b-81c2a8433d0a/periodic_table_worksheet_answer_key_chemistry.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/basuga.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_off0000c600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC600 5776 bytes
SHA-256: f52535fb2f26ee54a4b8c0bf1af8b593cb5a3106b69f557994067726a196647d
font_01_sfnt_off0000d998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD998 11368 bytes
SHA-256: 545a34ad4c26f829bfed8237fa80b473710e1f69174cef80138a8e24b9cbb361