Malicious PDF — malware analysis report

Static analysis result for SHA-256 b469f339ff431220…

MALICIOUS

PDF

66.5 KB Created: 2021-03-29 04:54:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0c3db5ca6f9cab2c223c7b7b1215e36d SHA-1: 0a16eea2599590ca0a5732e55c9b50245e407054 SHA-256: b469f339ff431220ea9e93e5fcb58b72fed596efe5fc7822805b3d8c1cc75cf5
182 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links to known malicious redirectors and disposable hosting, indicating an attempt to trick users into downloading malware. The heuristic firings confirm the presence of malicious redirector links and a link farm on disposable hosting. Although no scripts were extracted, the overall structure and URL analysis strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5247

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.
  • 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.
  • 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/strik?utm_term=examkrackers+9th+edition+download+free In PDF document text
    • http://wejuveziwep.mypressonline.com/forensic_anthropology_download.pdfIn PDF document text
    • http://gosezan.22web.org/rolamufupixak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384323/normal_605071cd91c1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393033/normal_6011d1b1af952.pdfIn PDF document text
    • https://ruwadegefanum.weebly.com/uploads/1/3/4/1/134108857/6248239.pdfIn PDF document text
    • http://fitafipos.iblogger.org/durizovilebapar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454811/normal_5fc82facc25c4.pdfIn PDF document text
    • https://geruzusuvar.weebly.com/uploads/1/3/0/7/130776720/e04371.pdfIn PDF document text
    • http://mukuwasoveta.sportsontheweb.net/tosop.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409610/normal_5fd051dca763f.pdfIn PDF document text
    • http://vitonidero.medianewsonline.com/junibodadewaxasijasadonon.pdfIn PDF document text
    • http://fikebek.sportsontheweb.net/cell_culture_media_a_review.pdfIn PDF document text
    • http://joriwolujuf.sportsontheweb.net/lisaz.pdfIn PDF document text
    • http://bukobaxaz.getenjoyment.net/rukaranitusujudabisor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387565/normal_6023d24b574d3.pdfIn PDF document text
    • http://rijoginijamibeg.mypressonline.com/novajafi.pdfIn PDF document text
    • http://mirumumavetifun.mypressonline.com/action_research_sample_deped.pdfIn PDF document text
    • http://bibuzikufaje.mygamesonline.org/34028280049.pdfIn PDF document text
    • http://gotuwun.epizy.com/82219047477.pdfIn PDF document text
    • http://naxefugoxodikow.atwebpages.com/10_class_math_solution.pdfIn PDF document text
    • http://faripemisale.rf.gd/96484708030.pdfIn PDF document text
    • http://fukuselumetu.myartsonline.com/mathematics_for_machine_learning_imperial_college_london.pdfIn PDF document text
    • http://junaken.onlinewebshop.net/read_the_very_hungry_caterpillar.pdfIn PDF document text
    • http://fukanabe.epizy.com/simple_sentence_practice_1_worksheet_answers.pdfIn PDF document text

Related samples 8

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