Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdf9fef0197b3fb0…

MALICIOUS

PDF

71.9 KB Created: 2021-02-20 09:33:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f1d864459e81486d59810e8891a6ffe2 SHA-1: 5913ecf3043eb973a2f3440241c3e146baf9f724 SHA-256: cdf9fef0197b3fb0efcec531caff448fbf7fb66a9c09b46d9ac31ef109b8af36
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. It contains an embedded URL that directs users to a site related to a diet program review, likely a lure to a malicious domain. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://seumenha.ru/strik?utm_term=10+day+smoothie+cleanse+jj+smith+review PDF link annotation
    • http://clobuss.ru/sopewesofadokurw0iyc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413004/normal_5ff8537d089a5.pdfIn PDF document text
    • http://euromarket.pro/60236926886zvyd5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471941/normal_5fe27ee3c45fe.pdfIn PDF document text
    • http://vonowaz.iblogger.org/online_converter_to_docx.pdfIn PDF document text
    • http://moreprodukti.com/manual_dog_tag_embossing_machine3vym2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465249/normal_6029c679dd76f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404293/normal_601e81909d515.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386354/normal_60267ec848b49.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469386/normal_601376ed8e8ad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391308/normal_6008d2eba1fbe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370555/normal_6017220edc34b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406169/normal_5ff1bda898300.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415767/normal_601b7e7a9d195.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/7551708962.pdfIn PDF document text
    • https://s3.amazonaws.com/fizufapu/extracurricular_activities_grifter_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wozowuledij/1445749070.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/intentionally_left_blank.pdfIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/losin_it_movie_cast.pdfIn PDF document text
    • http://nomapalugaji.epizy.com/bahubali_1_movie_telugu_songs_free.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_off0000d937.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD937 5608 bytes
SHA-256: a385c4b24ce0b39b9f4dcd432cfa1fd575a75d8f86685e41f3b7e876ffd6255f
font_01_sfnt_off0000ec3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC3F 11096 bytes
SHA-256: e5c98e2c9cb42b0ffee5b6649a1c9be54399c6f8fc470dfc3fd49381c024b7ff

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