Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fa3ce4fa35e0d4d…

MALICIOUS

PDF

118.6 KB Created: 2021-02-09 13:09:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 9313470706af7497195f02170c32648b SHA-1: 971f20efc265b203452e9786f4c7dc8070355b44 SHA-256: 4fa3ce4fa35e0d4d1fdc5dbc75afe3112ed7d6af85b9ddbeeb1ba6e613ca377b
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious intent. It contains an embedded URI pointing to a suspicious domain, which is likely used for phishing or malware distribution. Although no scripts were extracted, the presence of the malicious URL and the overall detection suggest a phishing attack disguised as educational material.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9497

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/aws?utm_term=lesson+30+sentence+fragments+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4381321/normal_5fec57e2a6f69.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzetuzame/8hgjdib/the_room_2019_common_sense_media.pdfIn PDF document text
    • http://pimunipimikuvaj.iblogger.org/33089713374.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373508/normal_5fe419e762b2d.pdfIn PDF document text
    • https://cdn.sqhk.co/lomokubaf/sJhhcTK/49220280897.pdfIn PDF document text
    • https://cdn.sqhk.co/pasojixaju/4qjghij/36420052800.pdfIn PDF document text
    • http://fly-drive.online/dbt_radical_acceptance_worksheetrn40n.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459185/normal_6010e8efd66cb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461498/normal_6004f43c168c3.pdfIn PDF document text
    • http://bopepon.22web.org/gcse_english_language_question_5_model_answer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451754/normal_5ff693ff1fb3a.pdfIn PDF document text
    • http://ompala.store/online_to_autocad_converter_free_download_with_crack5fmw7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403274/normal_5fcfb15ff38a4.pdfIn PDF document text
    • http://goromeo.club/free_beginning_cursive_writing_worksheetszpw4v.pdfIn PDF document text
    • http://dosemamorozaj.22web.org/sfn_poster_guidelines_2019.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://divogidiguxofib.epizy.com/administrao_pblica_apostila_para_concursos.pdfIn PDF document text
    • http://remigesej.epizy.com/50413733782.pdfIn PDF document text
    • http://vowaxuf.rf.gd/scratch_2_ubuntu.pdfIn PDF document text
    • http://nepupiborama.rf.gd/date_format_c_without_time.pdfIn PDF document text
    • http://tisajepi.epizy.com/pengertian_abnormalitas.pdfIn PDF document text
    • http://fevidubigozexa.rf.gd/screening_mammogram_guidelines_2018.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001ba13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BA13 5508 bytes
SHA-256: e847374069b4dfde1fc9183fbb63a766a9800dd4dd298ec58bbda3976e0a0bbf

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