Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f019eb4ba434705…

MALICIOUS

PDF

67.1 KB Created: 2020-12-21 00:42:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: bf436a884717545e6b9deea9c8f8759d SHA-1: 1b6a5e149b2ecdbcd8660b717f3271679cf56a62 SHA-256: 5f019eb4ba434705f99d6931c8600f00f833dd63d72e83a6b7c67757a631b8a2
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to direct the user to a malicious site.

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/123?utm_term=golf+clash+club+stats PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385847/normal_5fa0a51da655f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392441/normal_5fa999a646eed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410000/normal_5f9d951fb949a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380084/normal_5f8fe61219221.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421460/normal_5fb5f792a6442.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378848/normal_5fd7ca603fb81.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392452/normal_5f8eb439b1f3a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372967/normal_5fd0910a573de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402717/normal_5f96bd0aebab7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac50d2dc-e6d9-4328-8953-d078ba2319b3/lil_wayne_the_carter_2_free_mp3_download.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/8513805103.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/335ab04f-0709-4fa4-b324-82bc61d9c05b/ganubulanabon.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/65880613057.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_off0000cc43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC43 5044 bytes
SHA-256: a87d160266bce2a4d94e0bdc6619cfa01a1689dd80056ad3af1ade858e69f469
font_01_sfnt_off0000dd71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD71 9976 bytes
SHA-256: a342fe74f41c86391df8fddaf2fff1a44d744f4249108102800e8964cd6d43fd