Malicious PDF — malware analysis report

Static analysis result for SHA-256 3be4f575ca56586c…

MALICIOUS

PDF

366.6 KB Created: 2015-08-24 00:43:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-22
MD5: 50a7bfb93a15d069dc8baf8fcad18ba0 SHA-1: e77a43de9be4c8873c41153d22e03da268f43d67 SHA-256: 3be4f575ca56586cf43ac829092f6e4ca5d7eb85f6028e2eb79e8978959132e1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a link to known malicious redirector infrastructure. This suggests the document is part of a phishing or malware distribution campaign, likely delivered as a spearphishing attachment. No scripts were extracted, but the presence of the malicious URL is a high-confidence indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 2

  • 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.
  • 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 http://botcraftman.ru/?lip&keyword=%D0%A1%D1%85%D0%B5%D0%BC%D0%B0+%D1%81%D0%B8%D0%B4%D1%8F%D1%87%D0%B5%D0%B3%D0%BE+%D0%B2%D0%B0%D0%B3%D0%BE%D0%BD%D0%B0+%D0%BF%D0%BE%D0%B5%D0%B7%D0%B4%D0%B0+046%D0%B2&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694124_sergey__lukyanenko__genom_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693844_primeruy__kommercheskih__predlozheniy_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4692/4692976_klientuy__na__vsyu_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000573b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x573B6 8356 bytes
SHA-256: e89ad8e7ae1c87588fdfb58a7fe5101e12f7edde4e6ca12110b336977eeb687b
font_01_sfnt_off00058c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58C50 14428 bytes
SHA-256: 317c4322b3c185270e0277f471313479bcbf37436fcceb9b2d44e0f2ead7f263

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