Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9b11c0f3e74c31e…

MALICIOUS

PDF

50.6 KB Created: 2021-03-08 22:51:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 48dfece56ab5783738e428ffafa3b88f SHA-1: 923b66abdda8d2e027c5848dfa2fe80340f5a925 SHA-256: d9b11c0f3e74c31ea668b02dbd228086d62144bd2d06c51f8b1ae50be33de02d
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 0.9328

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://dugedepap.ru/aws?utm_term=worksheet+er+and+ir+verbs+in+the+imperfect PDF link annotation
    • http://konanozopesan.22web.org/42111240028.pdfIn PDF document text
    • https://wemibevufiwoseb.weebly.com/uploads/1/3/0/8/130813314/8bb6cb9c03cb26.pdfIn PDF document text
    • http://prequester.online/reformed_baptist_church_wilkesboro_ncw960h.pdfIn PDF document text
    • http://english-10.site/72488815821kes4j.pdfIn PDF document text
    • https://fenolipemul.weebly.com/uploads/1/3/4/3/134341818/2486017.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458144/normal_60198c395a0d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470828/normal_602e78f26f130.pdfIn PDF document text
    • https://movekepuvixoma.weebly.com/uploads/1/3/4/0/134041071/vofisivamebaximaba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29feacd5-54e3-46f2-9f23-38a945742fa0/77964773212.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b1b1f15-c006-473e-a804-63d22a552911/washington_dc_covid_rules_restaurants.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/mathantics_division_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/pulujolatepuv/pajepakagamudedilare.pdfIn PDF document text
    • http://miripiwamaza.epizy.com/93195012082.pdfIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/helvetica_new_bold_font.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f6c9768-ca6d-4ac8-83f1-f25138faf165/how_do_you_cook_ribs_in_a_pressure_cooker.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/68053038400.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/kanenujunivevuxebafo.pdfIn PDF document text
    • http://sajogaluka.rf.gd/89970971800.pdfIn PDF document text
    • http://nasakitubaribud.rf.gd/questions_to_ask_in_solution_focused_therapy.pdfIn PDF document text
    • http://nodobaviravi.epizy.com/justificacion_de_un_proyecto_de_investigacion_ejemplo.pdfIn PDF document text

Related samples 8

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