Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc162ea645044a99…

MALICIOUS

PDF

186.3 KB Created: 2015-07-26 06:15:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-06-17
MD5: b8d80e92bd147fe7d99e69b72b25deea SHA-1: b91d4b5d20dd81c9956f8b1521af7e6ea034f1c7 SHA-256: bc162ea645044a9940f87b1a8ef081dbe45cf8666311a21bde568db6ce9a5169
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of a malicious URL is sufficient to infer a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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=diablo+2+median+xl+ultimative+2014+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8 In PDF document text
    • http://fastpic.ru/In PDF document text
    • http://www.liveinternet.ru/clickIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4211/4211044_skachat_bessmertie_dlya_stalker_ten_chernobuylya_10006.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186592_sia_1000_forms_of_fear_skachat_albom.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4202/4202300_excel_2010_skachat.pdfIn PDF document text
    • http://www.microsoft.com/typography/fonts/In PDF document text
    • http://www.microsoft.com/typography/fonts/YouIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023f91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23F91 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off00024d14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24D14 15268 bytes
SHA-256: b81977564445bd7a54d62fd3598bcfc9feab79f1101cc22a420160c5ce59d781
font_02_sfnt_off00027c4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27C4D 15128 bytes
SHA-256: b11e6d19a4e7502f62922747d826eac6c07b2c9e957c3bbe06fc65b41ab97467
font_03_sfnt_off0002a909.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A909 7608 bytes
SHA-256: 6901dad39736c5faf15fdfce50d85d258d65835853be98a86056501bf44327f0
font_04_sfnt_off0002bf86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF86 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002cf1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF1B 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e