Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfe15f8c6eb3fa84…

MALICIOUS

PDF

70.8 KB Created: 2020-12-28 00:09:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 89fb575e37307d83f3aa7f23b7387d13 SHA-1: 1c97d5945c18b14f6bae45c3318d57574f6bf766 SHA-256: dfe15f8c6eb3fa8449aa9b6f2542985211e17dd56ef7e8f6889ab3372b8fb3c2
214 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, appears to be a lure related to 'Destiny 2 thorn strike guide'. The PDF_SEO_LINK_FARM heuristic further suggests the document is designed to host numerous external links, likely for malicious purposes. The ML_NYX_PDF_MALICIOUS and ClamAV detections confirm the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gettraff.ru/123?utm_term=destiny+2+thorn+strike+guide In PDF document text
    • https://static.s123-cdn-static.com/uploads/4425238/normal_5fc6b6407662a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379722/normal_5fd107bfe2d59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486982/normal_5fd15aa11ef8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372972/normal_5f8acb9bc0402.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470028/normal_5faffe02be7c0.pdfIn PDF document text
    • https://pimidunobesuxig.weebly.com/uploads/1/3/0/9/130970022/bagezotawapadapob.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/6c9f9441-5400-4fba-9977-b6108f90eaaa/sifebinetajefowuxi.pdfIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/rexaro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1efac0fd-133a-4e77-a395-c3bae70af599/gexekipofatogolopet.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/xesasebotudinuranolab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b4502a8-eaab-4be7-b2f0-1e0ca4c1bbaa/international_sex_guide_dubai.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29448341-6301-4c7d-bcef-1566b4dd7a62/cranston_public_library.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_off0000dabf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDABF 5144 bytes
SHA-256: 69c26bdddae29da1aadb4f10fe595d9a1cd5fe972f26da2ee6e0bd1ca8ee2e0f
font_01_sfnt_off0000ec4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC4A 10068 bytes
SHA-256: 7d37e7b1b7c2936f9c05c440e5a1c9d050749b154c9825557e5e12cab72973ec

Open this report in the interactive analyzer, or submit your own file for analysis.