Malicious PDF — malware analysis report

Static analysis result for SHA-256 58d97cc8310c7fb1…

MALICIOUS

PDF

188.2 KB Created: 2015-07-24 12:18:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-05-22
MD5: b66a76837799c70a8c669132952fb6ff SHA-1: 2a561e9e647f67de1b3600f9cb14b03e546b3b61 SHA-256: 58d97cc8310c7fb10af1a73ffd83f732569cf6ed926433cf375ae4837f48c65f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link identified as a malicious redirector. The ML classifier also flagged this PDF with high confidence. The primary malicious indicator is the URL http://botcraftman.ru/, which is likely used to deliver a secondary payload or lead the user to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B8+%D1%83%D1%81%D1%82%D0%B0%D0%BD%D0%BE%D0%B2%D0%B8%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+%D0%B2%D0%BE%D1%80%D0%B4+%D0%BE%D1%84%D0%B8%D1%81+2007+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8 In PDF document text
    • http://fastpic.ru/In PDF document text
    • http://www.liveinternet.ru/clickIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192158_word_microsoft_skachat_besplatno.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190067_cvetovoy_test_otnosheniy_yetkinda_proyti_onlayn.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191754_skachat_besplatno_proekt_odnoyetazhnogo_doma.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_off00024a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24A77 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off000257fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x257FA 14752 bytes
SHA-256: f0850397bce32ca58c94a5b84f1f9fde6a68994c7d43d01bab897a8bf638b2ae
font_02_sfnt_off00028692.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28692 14512 bytes
SHA-256: 2c5eae1d10c7b648468fed6400fad0e223502f1d33f82fb1b6970f4aebfa7bd8
font_03_sfnt_off0002b174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B174 7340 bytes
SHA-256: deddb34a45978238756c270fa372579a075e5184c976672aab419b9026681826
font_04_sfnt_off0002c70e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C70E 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002d6a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D6A3 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e

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