Malicious PDF — malware analysis report

Static analysis result for SHA-256 0708e26dfa6e8152…

MALICIOUS

PDF

52.6 KB Created: 2021-03-19 18:05:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 582fe7e4df86ac62cfa1394a0fc5a1e6 SHA-1: bdaa3925f9d819f93a0a055a6de958d3e9004709 SHA-256: 0708e26dfa6e81520f49ecc952f91128bce3f1e8ea977726349e329b836f206a
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7391

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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=metric+conversion+worksheet+answers+physical+science PDF link annotation
    • http://bujenaro.scienceontheweb.net/anova_one_way_and_two_way.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/yziikgg/lutejufe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485153/normal_5ffcffc3a595a.pdfIn PDF document text
    • http://bobixina.getenjoyment.net/91276268266.pdfIn PDF document text
    • https://sunajekivogemaz.weebly.com/uploads/1/3/4/8/134895881/6df07ee6bbf.pdfIn PDF document text
    • https://zedetebi.weebly.com/uploads/1/3/1/0/131070456/7734990.pdfIn PDF document text
    • http://rusadezebep.mygamesonline.org/little_girl_1st_birthday_poems.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446925/normal_5fcce6b600c85.pdfIn PDF document text
    • https://nemapawa.weebly.com/uploads/1/3/0/9/130969411/102dca91.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450257/normal_6038134b075a4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408330/normal_5fe56aebef3fb.pdfIn PDF document text
    • https://cdn.sqhk.co/dugelabomaw/LWidjbM/revelikitelunarosubajedom.pdfIn PDF document text
    • https://resawipodejevi.weebly.com/uploads/1/3/0/8/130814711/6523178.pdfIn PDF document text
    • http://woxikajir.myartsonline.com/charades_en_francais.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/compton_s_most_wanted_late_night_hype.pdfIn PDF document text
    • https://s3.amazonaws.com/xabalaru/24826418145.pdfIn PDF document text
    • https://s3.amazonaws.com/gusule/kepoluvejiregowowawa.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/vocabulary_workshop_level_f_unit_2_answers_synonyms.pdfIn PDF document text
    • http://sawurawefivovo.myartsonline.com/business_english_advanced.pdfIn PDF document text

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