Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b7c259cc3fd43c7…

MALICIOUS

PDF

186.1 KB Created: 2015-07-24 15:02:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 03a04f827d0290f514e1e06d18998f8f SHA-1: aa4a70ec7be85b37e058d0e5bdb35817d518ca2c SHA-256: 8b7c259cc3fd43c79e3adea75d90a42fbf8e7490a23e6f516de7f8839b24729c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, http://botcraftman.ru/, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The presence of this malicious URL suggests the document is designed to lure users to a compromised site, likely for further exploitation or malware delivery. No scripts were extracted, limiting the analysis of specific behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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+%D1%8D%D0%BC%D1%83%D0%BB%D1%8F%D1%82%D0%BE%D1%80+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192850_yekzamenacionnuye_biletuy_dlya_voditeley_pozharnuyh_avtomobiley.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184363_obuchayuschie_multfilmuy_dlya_detey_34_let_skachat_s_torrenta.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192749_muzuyka_dlya_yubileya_60_let_zhenschine_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000245d6.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x245D6 3556 bytes
font_01_sfnt_off00025359.bin
1c09cb74bc3c4724ddf931f56b42083323da19838343b7efa38ce49a8ec1e695		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25359 14064 bytes
font_02_sfnt_off00027f84.bin
a7e313356754acaf5d8c73765b10b23aa6ee1ff4a88a6bdff05d5f7cadbd5b1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F84 14468 bytes
font_03_sfnt_off0002aa36.bin
c7825b27989158fb91b0bd7e508cb26a09b4908e85d32badf15f6372f00ce551		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA36 6956 bytes
font_04_sfnt_off0002be79.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE79 6084 bytes
font_05_sfnt_off0002ce0e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE0E 3752 bytes

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