Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb7217f3dc03c249…

MALICIOUS

PDF

77.8 KB Created: 2020-11-27 18:09:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: b30970b2de4959866d51408fdb66b20f SHA-1: d6bd99feed935d312d0258f836526bb60caf8f40 SHA-256: fb7217f3dc03c249cd330dd06eb9bc53dbae97a782f9d87755582fdde7b7f083
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://traffnew.ru/strik?utm_term=yincrow+x6+amazon PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388038/normal_5f9160bf15d7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410952/normal_5fb960d5a4788.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367632/normal_5f8a55f4e0f84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f8735458d760.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408197/normal_5fb03421c2710.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499942/normal_5fbf1dd3411cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407303/normal_5f92e04b0df4e.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/zuponefi/59315669429.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6becca13-c245-4fd6-9a65-cefd2053b9f0/10_ml_to_liters.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/amu_school_admission_form_last_date.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22b55481-f579-4856-b322-9bd67bd174dc/35754167329.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/ripefofuzatab.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/pidekizofomibiwajaz.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/widonisiwopol.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/ccna_security_210-_260_exam_dumps.pdfIn PDF document text
    • https://s3.amazonaws.com/lanubili/ziditibesazeja.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_off0000f18d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF18D 5060 bytes
SHA-256: 4da02d110e92cbbc4052cec1c4d60678c53c348be664c15186035e6ae4379ce1
font_01_sfnt_off000102cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102CF 11744 bytes
SHA-256: 36b0662f6a556b727db11c879bb7db51f66432848849691e6c246ece2aedc994

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