Malicious PDF — malware analysis report

Static analysis result for SHA-256 05cc4fe0d785ab4e…

MALICIOUS

PDF

185.3 KB Created: 2015-08-06 09:37:22 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c2769e88de2a9e50e12e1d5dd0eebb9e SHA-1: f64f4e033b52472fb155578b2b54bf1b28836579 SHA-256: 05cc4fe0d785ab4eef83ace6de75daf78ba21d2a767c2f6c91928164f8ba6350
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious due to embedded links pointing to known malicious redirector infrastructure. The primary malicious URL identified is http://botcraftman.ru/, which is likely used to distribute malware or conduct phishing. No scripts were extracted, but the presence of malicious links suggests an attempt to trick the user into visiting a harmful site.

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=earth+2150+lost+souls+%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
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305783_ls_models.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307300_skachat_kartu_na_prohozhdenie_dlya_maynkraft_147.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306816_kryak_windows_7.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a691.bin
2a4aeea0b5431b1cb3fdbb00dd971bf8d0a1efcb7a3a39b8ea3f3fa099ce47b1		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A691 7164 bytes
font_00_sfnt_off00023f80.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F80 3556 bytes
font_01_sfnt_off00024d03.bin
7104f9c2eb112d0c00dfd60540aaa2488815dd3ad5183cab2e05f0dbc939a424		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D03 14840 bytes
font_02_sfnt_off00027ad9.bin
8f351eefc7bd5e8ef43da5b1c12fcecb3e98fe417370daafd04e17b91c782756		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AD9 14852 bytes
font_04_sfnt_off0002bb93.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB93 6084 bytes
font_05_sfnt_off0002cb28.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB28 3752 bytes

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