Malicious PDF — malware analysis report

Static analysis result for SHA-256 7430de2692c7d98f…

MALICIOUS

PDF

67.2 KB Created: 2020-12-22 04:29:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 0e1fedaf3cee1e3a41673f5679bfbe1c SHA-1: ea663e5d2d0a740b6f5fa0aa99129d3cc2e5ec42 SHA-256: 7430de2692c7d98fda1f53e6839ba90320df8635c3468ef9fcb8b453b67c29ef
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL. Static analysis heuristics and a machine learning classifier flagged this PDF as malicious, with ClamAV identifying it as a phishing trojan. The embedded URL likely leads to a malicious site designed to trick the user into downloading further malware or providing sensitive information.

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://trafficel.ru/strik?utm_term=magic+wand+tool+photoshop+cs6 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4450336/normal_5fdd20c9eca4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445749/normal_5fa12dd15356d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417321/normal_5fd1ea48d7ad7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365659/normal_5f93c79d2f106.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480905/normal_5fc2aaec1304e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370989/normal_5faf48767afe3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404966/normal_5fa0bf32a84ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414152/normal_5f9e8c61e2414.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403959/normal_5fd3c992b70b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367013/normal_5f8f986814986.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482230/normal_5fb8111d139eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384026/normal_5f8c07c1ca583.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc38de88787e879897caab0/t/5fd1e857ebc7ce75e8b4f1fa/1607592024045/hello_neighbor_act_2_guide_ps4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa77a18d-51e4-427e-b034-5ed1801436bf/capitalization_practice_worksheets_3rd_grade.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4ca47ab79f442f24277df/t/5fd7472d7fc52c206940feb0/1607943994525/26213277148.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ec12415-4762-4c18-8d06-53ede25920ca/miracle_questions_definition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34b24448-fcbd-4675-90e5-330e144b43a7/39618499104.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_off0000c9ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9AD 5492 bytes
SHA-256: f1100fc072ee5f1da1717acede18225d5b4d91264ce5fc51f0bd43ae6ea107f2
font_01_sfnt_off0000dc78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC78 10340 bytes
SHA-256: 087d1bdb0f7b81d00938017b66089368d38bdc39fce3de0732b908763572cea7

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