Malicious PDF — malware analysis report

Static analysis result for SHA-256 64db8e986f71c336…

MALICIOUS

PDF

374.6 KB Created: 2015-08-19 14:47:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-20
MD5: 375a86ff73b193a7d8b5907ea343637f SHA-1: 61947ef430a3c2c366875689c35bfd330499ecb4 SHA-256: 64db8e986f71c3363a4052df7c004e6744a7beb40791fa1c968736e1b391a0f5
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 a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, but the presence of the malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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=%D1%82%D0%B5%D1%85%D0%BD%D0%B8%D0%BA%D0%B0+%D0%B7%D0%B0%D0%BF%D0%BE%D0%BC%D0%B8%D0%BD%D0%B0%D0%BD%D0%B8%D1%8F+100+%D0%B8%D0%BD%D0%BE%D1%81%D1%82%D1%80%D0%B0%D0%BD%D0%BD%D1%8B%D1%85+%D1%81%D0%BB%D0%BE%D0%B2+%D0%B2+%D1%87%D0%B0%D1%81+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626554_skachat_odnoklassniki_na_telefon.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626959_ct_po_angliyskomu_yazuyku_2015.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626461_deti_nudistuy_podrostki_foto.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059392.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59392 9444 bytes
SHA-256: 84a26593d68fcdabe1ed15e23494e79a7e0c0734830b0637557656fefd3de163
font_01_sfnt_off0005ae57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE57 13900 bytes
SHA-256: 789786752e511c68c91a2cac3b39f26063e89ed93e664f520ad35d00b9168a7f

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